With 140 years of accrued mana, our survey team is among the most respected in Aotearoa New Zealand. We thrive on challenges and are dedicated to adding value to your projects. Our commitment to delivering high-quality results, clear communication style and our passion for surveying ensure we’re upholding the Harrison Grierson legacy. It’s central to our approach in everything we do.

Talk to us for advice on the best approach for your next project. What we can do for you:

Reality capture

Laser scanning

Talk to us about what scanner is best – from the small and mobile Leica BLK2GO through to specialist scanning equipment like the Trimble SX12. Our high-resolution 3D laser scanning equipment measures intricate details and delivers full colour, 3D models in your preferred application.

UAV (Unmanned Aerial Vehicle/drones)

Our 102 certified and Elios 3 pilots can carry out photogrammetric and LiDAR capture across a range of different project types, including land development earthworks, construction as-built, topographical surveys and even disaster inspections.

UAS (Unmanned)

Our trained captains operate the HydroPilot Hydrographic Boat for Bathymetric surveys. Designed to survey dams, lakes, toxic tailings and streams, our equipment can measure base contours under water to later combine with traditional survey information captured from above.

Engineering surveying

As-built

Our as-built surveys are of the highest quality and easy to understand ensuring there are no hiccups in the council compliance phase of your project.

Civil & construction setout

Our construction survey team can set out the exact position of your proposed structure within the legal boundaries of your project site, make sure your building is being built in the correct location or ensure a high-rise building is built and moving in the right direction - straight up preferably!

Settlement monitoring

We conduct level monitoring surveys for a range of purposes, including meeting resource consent requirements for settlement due to ground conditions, monitoring suburb-wide areas affected by dewatering operations, assessing displacement of individual dwelling floor slabs, tracking movement of retaining walls, and monitoring earthwork compaction. Often undertaken on a regular basis, we collaborate with other professionals and ensure accuracy, providing stakeholders with reliable data for decision-making.

Topographical survey

Site surveys

Let us provide you data in all major formats, 2D plans, 3D DWGS and point clouds using our full suite of survey equipment from UAVs, 3D scanners, GPS, and robotic total stations.

Height in relation to boundary survey / sightings certificates

If you're unsure about building boundaries or height restrictions, our Licensed Cadastral Surveyors can determine how close you can build to the boundary, how tall the new structure can be and if your building has been built to the correct height, helping you avoid rule violations set by different district councils.

GIS asset capture

Sometimes, the data you need isn't readily available or in the right format. Our data capture services can gather the information your organisation needs and deliver it in a GIS platform, tailored to your requirements. We capture various data points and assets, such as land parcels, topographic features, utility networks, and environmental features, and deliver the data in your preferred format for easy use and analysis in GIS.

Volumetric surveys

Our volumetric surveys assist with the measurement and calculation of earthworks, stockpiles and other materials on site – providing the required information for developments and construction projects, estimating cost of excavations or fill or monitoring changes in volume of materials over time. We can utilise our fleet of UAV, 3D scanners of traditional instrumentation to get results under any circumstances and conditions.

Rentable area survey

We helped pioneer the development of the 'BOMA' and have remained influential through the latest revision of the 'Guide for Rentable Area Surveys'. Our certified plans are recognised for their quality and that’s why you’ll find that innumerable lease agreements have an HG Tenancy Lease Plan attached to them. With a dedicated team specialising in this work, we achieve rapid turn-around times for our clients.

Land transfer survey

Brownfield / greenfield subdivisions

At HG we’ve long been converting large parcels of land, giving strategic and professional title advice and assisting with scheme plan and resource consent applications.

Unit title & stratum estates

We have been delivering multi-story building developments and Unit Title and Statum survey services for as long as the Unit Title act has been enforced (and even before!). We consider our team of expert Licensed Cadastral Surveyors some of the best in the business and we can define any structure and area accurately, prepare Resource Consent Plans and deliver a full Unit Title Development dataset to Land Information New Zealand for approval. Our team can support you every step of the way, from initial feasibility investigations through to completion of your development.

Cross-lease conversions

With cross leases becoming less and less desirable there is a shift to create Fee Simple Titles in the market. Our experienced team can give professional, evidence-based advice and ensure the right solution for the circumstances is found.

Redefinition surveys

Whether you’re building a new fence or simply just want to know where your boundary is, our Licensed Cadastral Surveyors can ensure you’re certain of the legal boundary location. Knowing where your boundary line is located is imperative for any type of development or design. We can either place a simple mark or undertake a full redefinition survey and have this dataset lodged at Land Information New Zealand.