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02108877448

Cost certainty. Commercial clarity. Delivered with ownership.

Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.

We don't just report costs — We take ownership

Contact Us
Certified Fair Price

02108877448

Cost certainty. Commercial clarity. Delivered with ownership.

Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.Cost certainty. Commercial clarity. Delivered with ownership.

We don't just report costs — We take ownership

Contact Us
Certified Fair Price

About Us

What We Do

We provide independent quantity surveying and cost management services across New Zealand, supporting projects from feasibility through to completion with accurate advice, disciplined cost control, and a proactive, client-focused approach.

We don’t just report costs — we take ownership. Our team works alongside you as a trusted advisor, managing your project with the same care, diligence, and accountability as if it were our own.

Our services include cost planning, feasibility studies, tender documentation, procurement advice, contract administration, and construction programme management—ensuring projects are delivered efficiently, transparently, and within budget.


The company

Our team includes Chartered Construction Managers and Registered Quantity Surveyors, committed to industry best practice and delivering reliable, commercially sound outcomes.  


Our quantity surveyors are members of the New Zealand Institute of Quantity Surveyors (NZIQS); we are committed to adhering to their best practices and delivering the highest level of service on every project.

Our project managers are members of the Chartered Institute of Building (CIOB), which means we operate by their code of conduct, professional standards, and best practices.

Why choose KiwiQS?

Independent advice you can trust
We act solely in the client’s interest, providing clear, impartial cost advice without contractor or supplier bias.

Proven cost certainty
We don’t just estimate — we actively manage and control costs throughout the project, helping you avoid budget overruns and financial surprises.

Practical, buildable solutions
Our advice is grounded in real construction experience, ensuring cost plans and recommendations are realistic, achievable, and aligned with market conditions.

Local market insight (Wellington/nationwide)
With strong knowledge of the New Zealand construction market, we provide accurate, up-to-date cost advice that reflects current pricing, risks, and procurement conditions.

Proactive risk management
We identify cost risks early and work with the project team to mitigate them before they become issues, protecting your budget and programme.

Ownership mindset
We take responsibility for outcomes—working alongside you as a trusted advisor and managing your project with the same care, diligence, and accountability as if it were our own. 

About the Team

Oliver Ho

Sunethra Aponsu

Sunethra Aponsu

Director, MCIOB


Oliver is a construction professional specialising in housing, building, and planning. He brings over 16 years of industry experience, with a strong background in project management and quantity surveying across a wide range of residential and commercial developments.

His comprehensive understanding of on-site operations, co

Director, MCIOB


Oliver is a construction professional specialising in housing, building, and planning. He brings over 16 years of industry experience, with a strong background in project management and quantity surveying across a wide range of residential and commercial developments.

His comprehensive understanding of on-site operations, combined with the ability to interpret drawings and specifications in relation to construction programmes, enables him to deliver fair, accurate, and commercially sound pricing of works.

Oliver is a Chartered Construction Manager with the Chartered Institute of Building (CIOB) and has been serving as the Emerging Wellington Hub Chair, demonstrating his commitment to professional leadership and industry development.

Sunethra Aponsu

Sunethra Aponsu

Sunethra Aponsu

Registered Quantity Surveyor, 

MCIOB


Sunethra brings over 30 years of Quantity Surveying experience across the Asia-Pacific region, including more than 20 years in New Zealand. Her expertise spans Cost Planning, Estimation, Tender Documentation, and Post-Contract Administration. Throughout her career, she has estimated and managed a diverse

Registered Quantity Surveyor, 

MCIOB


Sunethra brings over 30 years of Quantity Surveying experience across the Asia-Pacific region, including more than 20 years in New Zealand. Her expertise spans Cost Planning, Estimation, Tender Documentation, and Post-Contract Administration. Throughout her career, she has estimated and managed a diverse portfolio of commercial and residential development projects with a combined value exceeding NZ$659 million.

She is a Registered Quantity Surveyor with the New Zealand Institute of Quantity Surveyors and a Chartered Construction Manager with the Chartered Institute of Building (CIOB).

Lopeti Uhi

Hayden Bishop

Quantity Surveyor


Qualified in Quantity Surveying and Architectural Studies, Lopeti has experience measuring various trades, including demolition, excavation, concrete, and carpentry, across both residential and commercial projects. He is a keen estimator.

Hayden Bishop

Hayden Bishop

Quantity Surveyor


Hayden is a qualified Quantity Surveyor with a business degree and over 17 years of self-employment experience in both NZ and Europe, so he understands the importance of a job done right, on time and within budget. With a sharp eye for detail, he brings clarity and accuracy to residential and commercial projects - always with the bigger picture in mind.

Aria Kong

Quantity Surveyor


Aria is a qualified quantity surveyor with experience in cost estimation, tendering, and post-contract administration across residential and commercial projects. She also brings over 7 years of project coordination experience from a Forbes Global 2000 company, supporting all stages of project delivery. 

Natalia Rzhenetska

Estimator


With a strong background in accounting and quantity surveying, Natalia is a seasoned professional with extensive experience across both the public and private sectors, gained in New Zealand and internationally. She has worked as an Estimator in heavy engineering and construction industries.

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