Construction Estimator Wellington

Imagine saving $10,000, $50,000 or even $100,000 on your next build?
That’s the power of an accurate building cost estimation report.




Reports Completed to Date

18+ years

Industry Expertise


Average Cost Savings

 Trusted with over 7,000 reports to date

Our reports start from NZD $800+GST and focus on:


You’ll get to tap into our 18 years of trusted industry experience and specialist approach to delivering highly accurate cost estimates and quantity surveys.

Excellent ROI

 With our expert guidance, Newin typically help clients save 10 – 15% on their construction costs – which could mean an extra $30,000+ in your pocket.

All Types of Projects

We’ve built a team that has solid experience over a range of projects; commercial, industrial or residential construction projects.

Cost Transparency

Unlike other agencies, we don’t use cost guides as we don’t find them reliable for our clients. We believe in going much deeper to give you concrete data and rates so that you’ll feel secure with your budgets and the decisions you make.
Hai Nguyen building estimator sydney

Helping you Avoid Nasty Building Cost Surprises

Hi, I’m Hai Nguyen, founder of Newin Building Estimating Services, and that’s what I’ll help you do – cost your building projects to ultimately ensure it gets completed to budget and without any cost surprises.

We are a property and construction advisory firm specialising in Construction Cost Estimate Reports, Quantity Surveying, and Cost Management services across Auckland and Wellington NZ.

We work with domestic, commercial, and industrial builders, home-owners, architects, and developers at various phases: prior to construction, during construction, and post-construction.

Our why?

Over the years we’ve seen clients get caught out with poor project cost tracking systems, inaccurate costings, or simply “paying too much”, sadly leaving many financially strained.

We have a proven risk management system and industry track record for addressing all these.

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Unlike other agencies, we don’t use cost guides as we don’t find them reliable. We believe in digging much deeper to give you concrete data and rates, meaning you’ll feel secure with your budgets and the decisions you make.

With offices in Auckland, New Zealand as well as Sydney and Melbourne, Australia, and powered by 18 year’s + experience in the construction industry, we have proudly become a partner of choice for leading builders, architects, designers and developers.

We pride ourselves on being hands-on, affordable and eager to share ways on how we can support your business.

Our Services across Wellington

We help builders, architects, developers, & homeowners across residential and commercial with:

New Construction Building Cost Estimate Reports
Extension and Renovation Cost Estimate Reports
Independent Building Contract Price Evaluations
Material and Trade Price Cost Evaluations
Finance Reports for Banks & Financial Institutions
Feasibility Studies for Builders & Developers
Cost Planning by Project Phase- Concept, Design, Detailed & Tender

Utilising a construction estimator for the whole project cycle is highly beneficial for the following reasons:

Can ensure the proposed design is within the construction cost budget
Perform value cost engineering if required
Use the cost estimate when comparing building / subcontractor quotes
Engaging the construction cost estimator to produce / assess progress claims and or variations
This will ensure all construction cost aspects of the build are handled in a manner to mitigate construction cost blow out.

We Help

Architects & Designers

Ensure your proposed designs stay within clients budgets


Win more projects and stay up to date with market rates

Home Owners

Don’t get caught out with overpriced builders


We partner to help you profit

Understanding our Cost Estimate process in Wellington


Our expertise in the Wellington New Zealand market allows us to rate up our estimates based on the project geographical location. So every construction cost estimate we produce is based on real local data and to the specific requirements of your building project.

As leading industry building and construction estimators we have in-depth knowledge of the Wellington building and construction market. We can estimate the structural / foundation likely costs and can be accurate within 15% of actual costs once the full project documentation is developed. This will give you confidence in either going ahead with the current design, or, modifying it to suit budget requirements.

There is an inherent danger in providing a typical square meter rate for the intended building project. Factors such as foundation material, site access, specified materials, local engineering, and building compliance requirements can blow out your budget quickly. 

As construction cost estimators, we would study the project construction costings as a whole and recommend alternative materials and structures that can be use to reduce building costs as much as possible AND without comprising the intended scope of the design.

Newin is a trusted partner of choice across the Building & Construction industry


We enjoy a great working relationship with Hai at Newin Building Estimating Services. He is always incredibly responsive and never misses a deadline. As a growing building company we rely on professionals that we can trust and we look forward to continuing our working relationship with Hai for many, many years to come
Mark Baddock
Baddock Building
“Fast and professional, they provided high-quality work and were very efficient. Very happy and will use again”
Sydney Road Dental Care, Manly
“I found using Newin Estimating Services helped me win more business. Their professional approach and efficiency enabled me to go for more tenders and increase my strike rate. I would recommend their services to any builder or subcontractor who does not have the time to do estimating themselves”
Frank Tarabay – Managing Director
Every Trade Building Services
“They explained the process clearly and were able to complete the renovation and fit out of our practice well within the budgetary estimates”
BDS – Faculty of Dentistry
The University of Sydney
Ethics and transparency are his biggest strengths”. Knowing Hai for over 5 years, I rely on his services. He has outstanding attention to detail, is punctual, and sticks to deadlines. I support him completely, I refer him to others in the industry and there is no doubt.

Tarn Miller
TCM Building Services

He is very accurate with his building estimations. I find him reliable, hard-working, and extremely likable which is why I continue to engage his services and refer him to others.
Mick Dryver
Billabong Construction & Development

Latest tips from Newin

Quantity Surveyor Lower Hutt Wellington NZ

Cost to Build a House in Wellington, NZ

Auckland still holds the crown as the most expensive location to build a house in New Zealand, but not everybody wants to live there. Wellington is a popular location favoured for its urban lifestyle while still maintaining a deep sense of community.

Wellington maintains close ties to nature, and the people who live there typically love sports, the outdoors, and local produce. The sophisticated urban centre is also highly educated, with more than half of the population having some university education.

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Record-Breaking Construction Costs Impact New Zealand Home Buyers

CoreLogic’s Cordell Construction Cost Index (CCCI) report highlights that while there are early signs of the market starting to slow down, construction costs are expected to remain elevated in the short term. This situation puts significant pressure on construction firms’ profit margins and creates challenges for New Zealand home buyers. (Source)

Despite eases in supply chain issues, annual inflation of 10.4% for the cost of materials is expected to continue to put pressure on building prices.

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Rising Costs of Building Materials in New Zealand

Steel prices are a key factor in many home building plans. Australia sells iron ore to China at a higher price than China believes they should pay. In response, China jacks up the price of steel, and everybody has to bear the inflated cost.

Despite the rising prices, the housing market is still going through a boom the likes of which hasn’t been seen since after World War II. As a result, skilled labour is in short supply. Operators—if you can get them—are able to charge premium labour prices because of that.

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Ready to save thousands on your next construction project?

Call Hai for a Free No-Obligation Consultation or Request a Call Back

09 802 0902 


Request a callback today!

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