Quantity Surveying

A professional team of quantity surveyors who you can count on for independent and specialist advice based on experience and credentials

Most of our quantity surveyors have worked for contractors as well as cost consultants, so they fully understand the development and management of all project lifecycle costs. They have specific expertise in value management exercises in order to keep project costs down.

Commercial management and post contractual cost management is one of our team’s specialities and we enjoy operating at the “coalface” of construction assisting our clients with the day-to-day commercial aspects of their projects. These clients include some of the biggest infrastructure players in New Zealand.

Where we add value

Before Construction Starts

Quantity surveyors can help with feasibility studies for a project. They can roughly estimate what’s involved in the project, based on measurements of the designer’s or client’s sketches. The quantity surveyor studies the architects’ and engineers’ plans, identifies the costs involved, and then sets an overall estimated budget for the project. They may compare the project with others like it. The quantity surveyor can then plan costs to help the design team stay within the project budget using practical solutions. This is called value engineering.

The final detailed estimate is prepared by the quantity surveyor, together with a project architect. This is the basis for evaluating tenders.

During Construction

Once the building starts, the quantity surveyor can provide cash flow data so the client can arrange the finances needed for each stage of the project. The quantity surveyor can also assess cost effects when changes to the project occur, such as delays, and agree on ‘variation’ with contractors. The quantity surveyor can provide a bank with a project report and help a client by preparing draw down certificates for money to be loaned by the bank. Resolving disputes between clients, designers and building contractors is another role in some projects.


The quantity surveyor can prepare a statement of final account, which records the actual costs for all sections of the job.


  • Estimating from project conception to completion
  • Cashflow forecasting and management
  • Schedule of quantities and engineer’s estimates
  • Value engineering
  • Peer reviews and parallel estimates
  • Cost/risk analysis
  • Bank funding
  • Tender evaluation, analysis and negotiation
  • Construction contract administration – progress claims, variation assessment and negotiations
  • Cost reporting
  • Insurance replacement estimates
  • Earthwork volume modelling

Our recent projects

Ports of Auckland Stormwater Outfall Project

Large Tunnelling Project

Ruakaka School


Mt Smart Track


Waikato Expressway

Transport and infrastructure

East Coast Bays Leisure Centre


Alex Moore Park (waiora)

Community Sports Facility

Habitat for Humanity

Residential Development


Coastal Shared Path

Quantity Surveying Staff

Marius Van De Wall

Waikato / BOP Business Lead | Associate Director

Khan Po-Ching

Team Leader Quantity Surveying Auckland

Mareko Ah Toon

Intermediate Quantity Surveyor

Michelle Claassens

Team Leader Quantity Surveying Waikato