LDE (Engineers ∙ Scientists)

Building & Resource Consents

At LDE, our team of experienced professionals is dedicated to guiding you through the complex process of obtaining building and resource consents in New Zealand. We ensure that your projects are fully compliant with local and national regulations, helping you navigate the intricacies of the Resource Management Act (RMA) and Building Act with ease and efficiency.

Our Core Services

Resource Consent Applications

Navigating the resource consent process is critical for any development project. LDE provides expert assistance in preparing and submitting resource consent applications, ensuring compliance with the Resource Management Act (RMA) and local council requirements. We handle all aspects of the process, from initial site assessments to the preparation of necessary documentation, making sure your application is thorough and accurate.

Building Consent Applications

Obtaining a building consent is a vital step in ensuring that your construction project meets all legal requirements. Our team assists you in preparing and submitting building consent applications in accordance with the Building Act 2004 and New Zealand Building Code (NZBC). We work closely with local authorities to ensure your project is approved swiftly and smoothly, minimizing delays and ensuring compliance with all relevant standards.

Compliance with Local and Regional Plans

Every project must adhere to local and regional plans, which set out the rules and guidelines for land use and development in specific areas. LDE provides detailed assessments to ensure your project complies with these plans, helping you avoid potential legal issues and ensuring that your development is in harmony with local planning objectives.

Environmental Impact Assessments (EIA)

Environmental impact assessments are often a requirement for obtaining resource consents. Our team conducts thorough EIAs, evaluating the potential effects of your project on the environment. We ensure that your assessment complies with the RMA and relevant environmental standards, providing you with the data and insights needed to make informed decisions and gain approval for your project.

Plan Changes and Variations

If your project requires changes to existing land use plans or variations to current consents, LDE can help. We assist in preparing and submitting plan change applications and consent variations, ensuring that all modifications are compliant with the RMA and local regulations. Our team works to ensure that these changes are processed efficiently, minimizing disruptions to your project timeline.

Heritage and Cultural Assessments

New Zealand’s rich heritage and cultural landscapes are protected by stringent regulations. If your project impacts a heritage site or culturally significant area, LDE conducts detailed heritage and cultural assessments in line with the Heritage New Zealand Pouhere Taonga Act 2014 and local iwi requirements. We help you navigate the consent process while respecting and preserving New Zealand’s cultural heritage.

Public Consultation and Stakeholder Engagement

Engaging with the public and stakeholders is often a critical part of the consent process. LDE facilitates public consultations and stakeholder engagement, ensuring that your project is communicated effectively and that all concerns are addressed. We help you build positive relationships with the community and stakeholders, increasing the likelihood of consent approval.

Custom Building & Resource Consent Solutions

At LDE, we recognize that every project is unique, and the consent process can be complex. We provide tailored solutions that address the specific needs and challenges of your project, whether it’s a large-scale development or a small residential build. Our team of experts is here to guide you every step of the way, ensuring that your project meets all legal requirements and achieves its goals.

Why Choose LDE?

Expertise and Experience: Our team is highly experienced in navigating New Zealand’s complex consent processes, ensuring that your project complies with all relevant regulations.

Compliance and Efficiency: We prioritize compliance with all legal requirements while ensuring that the consent process is as smooth and efficient as possible.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional building and resource consent services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you secure the necessary consents for your development.

Civil Engineering

At LDE, our team of expert civil engineers is dedicated to providing comprehensive and innovative solutions that address the diverse challenges of infrastructure development. Our services are fully compliant with New Zealand’s rigorous civil engineering standards and regulations, ensuring that your projects are built to last and meet the highest standards of safety, functionality, and sustainability.

Our Core Services

Road, Pavement, and Carpark Design

Our civil engineers specialize in designing roads, pavements, and carparks that are both durable and efficient. We adhere to the NZTA (New Zealand Transport Agency) standards and NZS 4404 for land development and subdivision infrastructure. Whether for urban streets, rural roads, or commercial carparks, our designs are tailored to handle the specific traffic loads and environmental conditions of your project.

Stormwater Management and System Design

Effective stormwater management is essential for preventing flooding and protecting water quality. LDE provides comprehensive stormwater management and system design services, following the NZS 4404 and regional council guidelines. Our solutions are designed to manage runoff, reduce erosion, and protect natural waterways, ensuring compliance with environmental regulations and long-term sustainability.

Potable Water Reticulation

LDE offers expert services in the design and implementation of potable water reticulation systems. Our designs comply with the NZS 4404 and AS/NZS 3500 standards, ensuring the safe and reliable supply of drinking water to residential, commercial, and industrial developments. We focus on optimizing system efficiency, reducing water loss, and ensuring compliance with local and national regulations.

Subdivision Design – Small, Medium, and Large-Scale

Subdivision design requires careful planning and adherence to strict regulations. Our team provides tailored subdivision design services for projects of all sizes, ensuring compliance with the Resource Management Act (RMA) and local council requirements. From initial site assessments to final approvals, we guide you through the entire process, delivering sustainable and well-integrated developments.

Earthworks Design

Proper earthworks design is crucial for preparing a site for construction and ensuring long-term stability. LDE’s civil engineers design earthworks that comply with NZS 4431 for earth fill and compacted fills. Our services include site grading, excavation, and soil compaction, all designed to create a solid foundation for your project while minimizing environmental impact.

Erosion and Sediment Control

LDE provides erosion and sediment control services to protect your site and the surrounding environment from soil erosion and sedimentation. Our control measures are designed in accordance with NZS 4431 and regional council guidelines, ensuring that your construction activities do not harm the local environment.

Wastewater Treatment Systems

Our civil engineering team designs and implements efficient wastewater treatment systems tailored to the specific needs of your project. We comply with AS/NZS 1547 and local council regulations, ensuring that your wastewater systems are environmentally friendly and meet all necessary standards. From small-scale residential systems to large commercial and industrial facilities, we provide solutions that are both effective and sustainable.

Pipeline Design

LDE offers comprehensive pipeline design services for water, wastewater, and stormwater systems. Our designs are compliant with the NZS 4404 standards and are tailored to meet the specific demands of your project. We focus on optimizing flow, reducing maintenance costs, and ensuring the longevity of your pipeline infrastructure.

Irrigation Systems

Efficient irrigation systems are essential for agricultural and landscaping projects. Our civil engineers design irrigation systems that are tailored to your specific needs, whether it’s for large-scale farms or urban green spaces. We follow AS/NZS 4419 standards to ensure that your irrigation system is both water-efficient and reliable.

Land Development Valuations

Understanding the value of land is crucial for making informed development decisions. LDE provides detailed land development valuations that consider a wide range of factors, including zoning, infrastructure, and environmental constraints. Our valuations comply with IVS (International Valuation Standards), providing you with accurate and reliable information to guide your investment.

Dam Assessments and Design

LDE offers expert services in the assessment and design of dams, ensuring compliance with NZSOLD (New Zealand Society on Large Dams) guidelines and local council requirements. Our engineers conduct thorough site assessments and develop designs that prioritize safety, stability, and environmental sustainability.

Dairy Effluent Pond Design

Our civil engineers specialize in the design of dairy effluent ponds that comply with the Dairy Effluent Design Code of Practice and regional council regulations. We provide solutions that ensure the safe and efficient management of dairy effluent, protecting both the environment and your operation.

Construction Monitoring

LDE provides construction monitoring services to ensure that your project is built according to design specifications and standards. Our monitoring services include quality control, compliance checks, and progress reporting, all conducted in alignment with the NZS 3910 standards for building and construction contracts.

Custom Civil Engineering Solutions

At LDE, we understand that every project is unique. We provide tailored civil engineering solutions that address your specific challenges, whether it’s for urban infrastructure, rural developments, or industrial projects. Our engineers work closely with you to develop innovative and practical designs that meet your needs and exceed your expectations.

Why Choose LDE?

Expertise and Experience: Our civil engineers are highly qualified and experienced in delivering innovative and practical infrastructure solutions.

Compliance and Safety: We prioritize compliance with all relevant New Zealand standards and regulations, ensuring that your project meets the highest standards of safety and quality.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional civil engineering services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your development goals.

Coastal Engineering

At LDE, our team of expert coastal engineers is dedicated to delivering innovative and sustainable solutions that address the unique challenges of coastal environments. Our services are grounded in compliance with New Zealand’s stringent coastal management regulations and standards, ensuring the protection, stability, and longevity of your coastal projects.

Our Core Services

Boat Ramps, Marinas, and Recreational Facilities

Our coastal engineers specialize in the design and construction of boat ramps, marinas, and recreational facilities that withstand the dynamic forces of coastal environments. We design these structures in accordance with the NZS 3910 standards for building and construction contracts, ensuring durability and functionality. Our designs integrate seamlessly with the natural environment while providing safe and accessible facilities for public and private use.

Jetties, Wharves, and Boardwalks

LDE offers comprehensive services in the design and construction of jetties, wharves, and boardwalks. Our structures are engineered to meet the NZS 3604 standards for timber-framed buildings, ensuring they are robust and resilient against the harsh coastal conditions. We tailor our designs to suit the specific needs of your project, whether it’s for commercial, recreational, or environmental purposes.

Seawalls, Breakwaters, and Groynes

Coastal protection structures like seawalls, breakwaters, and groynes are essential for safeguarding shorelines from erosion and storm damage. Our engineers design and construct these structures in compliance with NZS 3101 for concrete structures and NZS 3604 for timber constructions, ensuring they provide long-lasting protection. We apply advanced modeling techniques to predict wave and current interactions, optimizing the design for maximum effectiveness.

Coastal Erosion and Sea-Level Rise Assessments

New Zealand’s coastlines are increasingly vulnerable to erosion and sea-level rise. LDE conducts detailed coastal erosion and sea-level rise assessments to inform your project’s design and long-term management strategies. Our assessments comply with the guidelines set by NIWA and MfE (Ministry for the Environment), providing you with the data needed to make informed decisions about coastal development and protection.

Port Planning and Channel Design

Effective port planning and channel design are crucial for the safe and efficient operation of maritime facilities. Our engineers provide expert services in designing and optimizing port layouts and navigation channels, adhering to PIANC (Permanent International Association of Navigation Congresses) guidelines. We ensure that your port facilities are designed to accommodate current and future maritime traffic while minimizing environmental impact.

Coastal Protection Design

LDE offers specialized services in the design of coastal protection measures, including revetments, dune stabilization, and artificial reefs. Our designs are guided by NZCPS (New Zealand Coastal Policy Statement) principles, ensuring that they not only protect the coastline but also enhance the natural coastal environment. We work closely with environmental scientists and local communities to develop sustainable solutions that balance protection with ecological preservation.

Environmental Approvals and Compliance

Navigating the complex regulatory landscape of coastal engineering projects requires expertise and experience. LDE assists you in obtaining the necessary environmental approvals and ensures compliance with the Resource Management Act (RMA) and local council requirements. Our team provides thorough environmental impact assessments and develops strategies to mitigate potential environmental risks.

Custom Coastal Engineering Solutions

At LDE, we understand that every coastal project is unique. We provide tailored coastal engineering solutions that address the specific challenges of your site, whether it’s for public infrastructure, private development, or environmental conservation. Our engineers leverage the latest technology and local knowledge to deliver results that are both effective and sustainable.

Why Choose LDE?

Expertise and Experience: Our coastal engineers are highly qualified and experienced in delivering innovative and practical solutions for coastal environments.

Compliance and Safety: We prioritize compliance with all relevant New Zealand coastal management standards and regulations, ensuring that your project meets the highest safety and environmental standards.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional coastal engineering services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your coastal development goals.

Drilling Services

At LDE, our team of expert drilling professionals is committed to delivering precise and reliable drilling services tailored to meet the specific needs of your project. We ensure that our services are fully compliant with New Zealand’s rigorous safety and environmental standards, guaranteeing accuracy and efficiency in every drilling operation.

Our Core Services

Hand Augers

Our hand auger services are ideal for shallow soil investigations, offering a cost-effective and efficient method for collecting soil samples in various terrains. We adhere to the NZS 4402 standards for soil testing, ensuring that our hand auger operations provide accurate and reliable data for your geotechnical and environmental assessments.

Scala Penetrometer Testing

Scala penetrometer testing is crucial for assessing soil strength and compaction levels. Our team conducts these tests in accordance with the NZS 4402 standards, providing essential data for foundation design, earthworks, and pavement construction. This service is particularly valuable for small to medium-sized projects requiring quick and accurate soil strength measurements.

Cone Penetrometer Testing (CPT), CPTu, DMT, and sDMT Soundings

LDE offers advanced Cone Penetrometer Testing (CPT) and related testing services, including CPTu (piezocone), DMT (flat dilatometer), and sDMT (seismic dilatometer). These tests provide detailed profiles of soil stratigraphy, strength, and behavior. Our CPT services are conducted in compliance with ISO 22476 standards, ensuring that your project benefits from high-quality subsurface data.

Fully Cored Boreholes

For projects requiring deep and detailed subsurface investigations, our fully cored borehole services provide comprehensive data on soil and rock formations. We use state-of-the-art drilling equipment to extract continuous core samples, adhering to the NZS 4411 standards for drilling operations. This service is essential for geotechnical analysis, foundation design, and environmental assessments.

Core Logging Services

Accurate core logging is essential for interpreting geological conditions and making informed decisions about your project. Our geologists provide meticulous core logging services, documenting the physical and mechanical properties of the core samples. We follow the NZS 4403 guidelines, ensuring that our core logs are detailed, accurate, and useful for your engineering and construction needs.

Custom Drilling Solutions

At LDE, we understand that every project is unique. We offer tailored drilling solutions that address your specific needs, whether it’s for small-scale investigations or large infrastructure projects. Our team works closely with you to develop a drilling plan that delivers the precise data you need, on time and within budget.

Why Choose LDE?

Expertise and Experience: Our drilling professionals are highly skilled and experienced in providing precise and reliable drilling services across various terrains and project types.

Compliance and Safety: We prioritize safety and compliance with all relevant New Zealand standards and regulations, ensuring that your project meets the highest safety and quality standards.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional drilling services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your construction and engineering goals.

Engineering Geology

At LDE, our team of expert engineering geologists is dedicated to providing comprehensive and innovative solutions that address the geological challenges of your projects. Our services are grounded in compliance with New Zealand’s stringent geological and engineering standards, ensuring that your project is both safe and successful from the ground up.

Our Core Services

Natural Hazard, Geological, and Geomorphological Mapping

Our engineering geologists specialize in detailed mapping of natural hazards, geological features, and geomorphological structures. This service is essential for understanding the risks and opportunities associated with your site. We adhere to the guidelines set by GNS Science and NZS 4404 standards, ensuring that our maps provide accurate and actionable data for your project.

Slope Stability and Ground Modelling

Slope stability is a critical concern in New Zealand’s diverse and often steep terrain. Our team conducts thorough slope stability assessments and ground modeling, utilizing advanced software and techniques. Our assessments comply with NZS 4431 standards, ensuring that your project is designed with safety and stability in mind.

Landslide Investigations and Monitoring

LDE offers comprehensive landslide investigation and monitoring services to identify potential landslide risks and develop mitigation strategies. We follow the NZ Geotechnical Society Guidelines for landslide assessments, providing you with the information needed to protect your site and structures from landslide hazards.

Soil and Rock Slope Design

Our expertise in soil and rock slope design ensures that your project is built on solid ground. We design slopes that are both stable and safe, adhering to the NZS 4404 standards for land development and subdivision infrastructure. Whether it’s for roadways, buildings, or infrastructure projects, our slope designs are tailored to meet the specific conditions of your site.

Cuts and Fills in Difficult Hillside Terrain

New Zealand’s hilly and mountainous terrain often requires complex cuts and fills for construction projects. Our engineering geologists provide expert design and analysis for these earthworks, ensuring compliance with NZS 4431 standards. We help you navigate the challenges of difficult terrain, ensuring that your project is both feasible and safe.

Investigating Active Fault Lines and Seismic Features

Given New Zealand’s active seismic environment, understanding the location and behavior of fault lines is crucial. LDE provides fault line investigations and seismic feature assessments in accordance with GNS Science and NZS 1170.5 standards. Our services help you make informed decisions about site selection, design, and construction in seismically active areas.

Groundwater and Aquifer Monitoring and Analysis

Effective groundwater management is vital for the stability and sustainability of your project. Our team offers groundwater and aquifer monitoring and analysis services, following NZS 4402 standards. We provide insights into groundwater behavior, helping you manage water resources and mitigate risks such as flooding, erosion, and contamination.

Custom Engineering Geology Solutions

At LDE, we recognize that every project is unique. We offer tailored engineering geology solutions that address the specific geological challenges of your site. Whether it’s for large infrastructure projects, residential developments, or environmental assessments, our geologists deliver results that are accurate, reliable, and tailored to your needs.

Why Choose LDE?

Expertise and Experience: Our engineering geologists are highly skilled and experienced in providing practical and innovative geological solutions.

Compliance and Safety: We prioritize compliance with all relevant New Zealand geological standards and regulations, ensuring that your project meets the highest safety and quality standards.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional engineering geology services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your construction goals.

Environmental Engineering

At LDE, our team of expert environmental engineers is committed to delivering sustainable and innovative solutions that address the environmental challenges of your projects. We ensure that our services are fully compliant with New Zealand’s stringent environmental regulations and standards, guaranteeing that your project is both environmentally responsible and successful.

Our Core Services

Environmental Impact Assessments (EIA)

Our environmental engineers specialize in conducting comprehensive Environmental Impact Assessments (EIA) to evaluate the potential effects of your project on the environment. Our assessments adhere to the Resource Management Act (RMA) and NZS 9201 standards, ensuring that your project meets all regulatory requirements and minimizes its environmental footprint.

Contaminated Land Assessment and Remediation

LDE offers expert services in the assessment and remediation of contaminated land. We conduct detailed site investigations and develop remediation plans in compliance with the National Environmental Standards for Assessing and Managing Contaminants in Soil to Protect Human Health (NESCS). Our goal is to restore contaminated sites to safe and usable conditions.

Stormwater Management and Treatment

Effective stormwater management is crucial for preventing pollution and managing water resources. Our engineers design and implement stormwater management systems that comply with the NZS 4404 standards and regional council guidelines. We provide solutions that protect waterways from contamination and reduce the risk of flooding.

Wastewater Treatment and Disposal

We provide comprehensive wastewater treatment and disposal solutions tailored to the specific needs of your project. Our designs are compliant with AS/NZS 1547 standards and local council regulations, ensuring that your wastewater systems are efficient, safe, and environmentally friendly. We offer services ranging from small-scale residential systems to large commercial and industrial treatment facilities.

Erosion and Sediment Control

LDE provides erosion and sediment control services to protect your site and surrounding environments from soil erosion and sedimentation. Our control measures are designed in accordance with NZS 4431 standards and local council guidelines, helping you prevent environmental degradation during construction activities.

Resource Consent Applications

Navigating the resource consent process is a critical aspect of environmental engineering. Our team assists you in preparing and submitting resource consent applications that comply with the Resource Management Act (RMA) and local council requirements. We provide expert guidance to ensure your project gains the necessary approvals efficiently.

Environmental Monitoring and Compliance

Ensuring ongoing compliance with environmental regulations is essential for the long-term success of your project. LDE offers environmental monitoring services that adhere to NZS 4407 standards and local council regulations. We monitor air and water quality, noise levels, and other environmental factors, providing you with the data needed to maintain compliance and avoid penalties.

Custom Environmental Solutions

At LDE, we understand that every project has its own unique environmental challenges. We provide tailored environmental engineering solutions that address your specific needs, whether it’s for urban development, infrastructure projects, or industrial operations. Our engineers work closely with you to develop sustainable strategies that balance development with environmental stewardship.

Why Choose LDE?

Expertise and Experience: Our environmental engineers are highly qualified and experienced in delivering sustainable and practical environmental solutions.

Compliance and Safety: We prioritize compliance with all relevant New Zealand environmental standards and regulations, ensuring that your project meets the highest standards of environmental responsibility.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional environmental engineering services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your environmental goals.

Geophysics

At LDE, our team of expert geophysicists is dedicated to providing comprehensive and innovative solutions that address the complex subsurface challenges of your projects. Our services are rooted in compliance with New Zealand’s stringent regulations and standards, ensuring that we deliver accurate, reliable, and actionable data to inform your engineering and environmental decisions.

Our Core Services

Ground Penetrating Radar (GPR)

Our geophysics team utilizes Ground Penetrating Radar (GPR) to conduct non-invasive subsurface investigations. GPR is essential for detecting buried utilities, voids, and other underground features without disturbing the site. Our GPR services comply with the NZS 4402 standards for testing soils for civil engineering purposes, providing critical insights that help avoid costly surprises during construction.

Electromagnetic Induction (EMI) Testing

We offer Electromagnetic Induction (EMI) testing services to map subsurface conductivity variations, which are indicative of different soil types, groundwater, and contaminants. Our EMI testing is performed in accordance with AS/NZS 1418 standards, ensuring precise and reliable results that guide your project’s development and environmental management.

Downhole Seismic (SCPT) Testing

LDE provides Downhole Seismic Cone Penetration Testing (SCPT) to assess soil stiffness and stratigraphy. This method is particularly valuable for seismic hazard assessments and foundation design. Our SCPT services are conducted in line with NZS 1170 standards, ensuring that your structures are designed to withstand New Zealand’s seismic conditions.

Sub-soil Classification (Class C/D)

Understanding the natural frequency of the soil is crucial for the design of multi-storey buildings, dams, and other critical structures. We perform sub-soil classification to determine the site period, adhering to the NZS 1170.5 standards. This service informs the structural design process, ensuring that buildings are designed with the correct seismic response.

Seismic Hazard Assessment

Given New Zealand’s seismic activity, our seismic hazard assessments are essential for any construction project. We utilize advanced geophysical methods to evaluate potential seismic risks, in compliance with MBIE and GNS Science guidelines. Our assessments provide the necessary data to design earthquake-resistant structures, enhancing safety and resilience.

Underground Service Location

Accurate underground service location is vital for safe and efficient construction. Our geophysicists use advanced detection techniques to locate utilities such as gas lines, water pipes, and electrical conduits. Our service complies with NZS 4402 standards, helping you avoid damage and disruptions during construction.

Geological Structure Mapping

LDE offers geological structure mapping services to identify and analyze subsurface features, including faults, fractures, and lithological variations. Our mapping adheres to NZS 4403 standards and is crucial for understanding the geotechnical and seismic characteristics of your site. This service supports informed decision-making in the design and construction process.

Custom Geophysics Solutions

At LDE, we recognize that every project presents unique challenges. Our geophysicists provide tailored solutions that address your specific subsurface concerns, whether it’s for large infrastructure projects, environmental assessments, or site investigations. We combine cutting-edge technology with deep local knowledge to deliver results that meet your project’s needs.

Why Choose LDE?

Expertise and Experience: Our geophysicists are highly skilled and experienced in providing accurate and practical geophysical solutions.

Compliance and Safety: We prioritize compliance with all relevant New Zealand standards and regulations, ensuring that your project meets the highest safety and quality standards.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional geophysics services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your construction goals.

Geotechnical Engineering

At LDE, our team of expert geotechnical engineers is committed to delivering comprehensive and innovative solutions that cater to the unique challenges of each project. We ensure that our services are fully compliant with New Zealand’s strict regulations and standards, guaranteeing safety, stability, and excellence in every project we undertake.

Our Core Services

Site Investigation and Soil Testing

Our geotechnical engineers specialize in conducting thorough site investigations and soil testing to evaluate the ground conditions of your project site. Our investigations are carried out in accordance with the New Zealand Geotechnical Society Guidelines and AS/NZS 1170 standards, ensuring that the data we gather forms a reliable basis for your construction project.

Foundation Design and Analysis

We offer expert foundation design services to ensure that your structures are built on solid ground. Our foundation designs are compliant with the NZS 3604 standard for light timber-framed buildings and NZS 1170 for structural design actions, including seismic considerations. Our expertise in both shallow and deep foundations ensures the stability and longevity of your structures.

Slope Stability and Landslide Risk Assessment

Given New Zealand’s varied terrain, slope stability and landslide risks are critical concerns for many construction projects. Our engineers conduct detailed slope stability assessments and landslide risk evaluations, following the NZS 4404 standards. We provide solutions that mitigate potential hazards, ensuring the safety of your development.

Earthworks and Ground Improvement

Properly managed earthworks and ground improvement are essential for preparing a site for construction. At LDE, we provide comprehensive earthworks services, including soil stabilization and compaction, in accordance with the NZS 4431 code. Our ground improvement techniques enhance soil bearing capacity and reduce settlement risks, creating a solid foundation for your project.

Retaining Wall Design

Retaining walls are crucial for managing sloped landscapes and preventing soil erosion. Our engineers design retaining walls that comply with NZS 3101 for concrete structures and NZS 3604 for timber retaining walls. We offer tailored solutions in timber, steel, and concrete, designed to withstand New Zealand’s environmental conditions.

Seismic Hazard Assessment and Liquefaction Analysis

New Zealand’s seismic activity requires careful consideration in any construction project. Our geotechnical engineers conduct seismic hazard assessments and liquefaction analysis in line with MBIE and GNS Science guidelines. We provide critical insights that inform earthquake-resistant designs, ensuring the safety and resilience of your structures.

Groundwater Control and Drainage Design

Effective groundwater control is vital for the long-term stability of any construction project. Our services include dewatering, drainage design, and waterproofing solutions, all conducted in compliance with NZS 4402 standards. We ensure that your site remains dry and stable, preventing issues such as soil erosion and structural damage.

Land Development and Subdivision Geotechnical Assessments

For land development and subdivision projects, we offer comprehensive geotechnical assessments that comply with the Resource Management Act (RMA) and local council regulations. Our assessments cover soil suitability, environmental impact, and all necessary regulatory requirements, providing a solid foundation for your development.

Custom Geotechnical Solutions

At LDE, we recognize that every project is unique. We provide tailored geotechnical solutions that address the specific challenges of your site, whether it involves challenging terrain, seismic considerations, or unique soil conditions.

Why Choose LDE?

Expertise and Experience: Our engineers are highly qualified and experienced in delivering practical and innovative geotechnical solutions.

Compliance and Safety: We prioritize compliance with all relevant New Zealand standards and regulations, ensuring the safety and success of your project.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional geotechnical engineering services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your construction goals.

Structural Engineering

At LDE, our team of expert structural engineers is dedicated to providing comprehensive and innovative solutions tailored to meet the unique needs of our clients. Our services are grounded in compliance with New Zealand’s stringent regulations and standards, ensuring safety, durability, and excellence in every project.

Our Core Services

Structural Design and Analysis

Our structural engineers specialize in designing and analyzing structures to ensure they can withstand various loads and forces. Our designs comply with the New Zealand Building Code (NZBC) and relevant standards such as NZS 3604:2011 for timber-framed buildings and NZS 3404 for steel structures. We utilize advanced modeling techniques to deliver designs that are both efficient and resilient.

Seismic Assessment and Retrofitting

New Zealand’s unique seismic activity necessitates robust earthquake-resistant designs. Our engineers conduct detailed seismic assessments and provide retrofitting solutions in accordance with NZS 1170.5:2004, ensuring your structures can withstand seismic events. We focus on enhancing the safety and integrity of both new and existing buildings.

Construction Supervision and Quality Assurance

We oversee construction projects to ensure compliance with design specifications and standards. Our quality assurance processes align with the NZBC and industry best practices, guaranteeing that all materials and workmanship meet the required standards. Our proactive supervision helps prevent issues and ensures that the final structure is built to last.

Structural Inspections and Reports

Our team conducts thorough structural inspections and provides detailed reports, adhering to the guidelines of the New Zealand Society for Earthquake Engineering (NZSEE). These reports are crucial for property transactions, insurance, compliance with council requirements, and maintenance planning. We provide actionable insights to maintain and enhance the structural integrity of your buildings.

Structural Steelwork Design

We offer specialized services in the design of structural steelwork, adhering to NZS 3404 and the Steel Construction New Zealand (SCNZ) guidelines. Our expertise ensures that all steel structures are designed for optimal strength and durability, meeting the specific demands of your project while adhering to stringent safety standards.

Custom Structural Solutions

At LDE, we understand that every project is unique. We offer tailored structural solutions that address your specific needs, whether it’s for new constructions, renovations, or heritage buildings. Our engineers work closely with you to develop innovative and practical designs that meet both your aesthetic and functional requirements.

Why Choose LDE?

Expertise and Experience: Our engineers are highly qualified and experienced in delivering innovative and practical structural solutions.

Compliance and Safety: We prioritize safety and compliance with all relevant New Zealand standards and regulations, ensuring that your project meets the highest standards.

Client-Centric Approach: We work closely with our clients to understand their needs and deliver solutions that exceed expectations.

For reliable and professional structural engineering services in New Zealand, trust LDE. Contact us today to discuss your project requirements and discover how we can help you achieve your construction goals.

Geotechnical, Civil, Structural & EnvironmentalEngineers located inKerikeri | Whangārei | Warkworth | Auckland | South Auckland | Tauranga | Gisborne | Napier | Whanganui

What we do

Building & Resource Consents

Our Core Services

Resource Consent Applications

Building Consent Applications

Compliance with Local and Regional Plans

Environmental Impact Assessments (EIA)

Plan Changes and Variations

Heritage and Cultural Assessments

Public Consultation and Stakeholder Engagement

Custom Building & Resource Consent Solutions

Why Choose LDE?

Civil Engineering

Our Core Services

Road, Pavement, and Carpark Design

Stormwater Management and System Design

Potable Water Reticulation

Subdivision Design – Small, Medium, and Large-Scale

Earthworks Design

Erosion and Sediment Control

Wastewater Treatment Systems

Pipeline Design

Irrigation Systems

Land Development Valuations

Dam Assessments and Design

Dairy Effluent Pond Design

Construction Monitoring

Custom Civil Engineering Solutions

Why Choose LDE?

Coastal Engineering

Our Core Services

Boat Ramps, Marinas, and Recreational Facilities

Jetties, Wharves, and Boardwalks

Seawalls, Breakwaters, and Groynes

Coastal Erosion and Sea-Level Rise Assessments

Port Planning and Channel Design

Coastal Protection Design

Environmental Approvals and Compliance

Custom Coastal Engineering Solutions

Why Choose LDE?

Drilling Services

Our Core Services

Hand Augers

Scala Penetrometer Testing

Cone Penetrometer Testing (CPT), CPTu, DMT, and sDMT Soundings

Fully Cored Boreholes

Core Logging Services

Custom Drilling Solutions

Why Choose LDE?

Engineering Geology

Our Core Services

Natural Hazard, Geological, and Geomorphological Mapping

Slope Stability and Ground Modelling

Landslide Investigations and Monitoring

Soil and Rock Slope Design

Cuts and Fills in Difficult Hillside Terrain

Investigating Active Fault Lines and Seismic Features

Groundwater and Aquifer Monitoring and Analysis

Custom Engineering Geology Solutions

Why Choose LDE?

Environmental Engineering

Our Core Services

Environmental Impact Assessments (EIA)

Contaminated Land Assessment and Remediation

Stormwater Management and Treatment

Wastewater Treatment and Disposal

Erosion and Sediment Control

Resource Consent Applications

Environmental Monitoring and Compliance

Custom Environmental Solutions

Why Choose LDE?

Geophysics

Our Core Services

Ground Penetrating Radar (GPR)

Electromagnetic Induction (EMI) Testing

Downhole Seismic (SCPT) Testing

Sub-soil Classification (Class C/D)

Seismic Hazard Assessment

Underground Service Location

Geotechnical, Civil, Structural & Environmental
Engineers located in
Kerikeri | Whangārei | Warkworth | Auckland | South Auckland | Tauranga | Gisborne | Napier | Whanganui

"We deliver common sense,
practical solutions"

"LDE bring a ‘can-do’
attitude to every project’ "

"Making our little corner
of the world a better place"

"We deliver common sense,
practical solutions"

"LDE bring a ‘can-do’
attitude to every project’ "