Construction Estimator Central Coast NSW

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 AUD $990 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.

Cost Estimates

Construction Cost Estimates Central Coast NSW

Are you planning a building project or home construction in Central Coast NSW?

Don’t leave the costs to chance. Let Newin Building Estimating Services provide you with highly accurate project costings and construction cost estimate reports.

Our team of experienced professionals, including founder Hai Nguyen, has over 18 years of industry expertise, and we use the latest market data to ensure that our costings are as precise as possible. We work with domestic, commercial, industrial builders, homeowners, architects, and developers, and have a proven system that aims to put more money back in your pocket.

Our comprehensive cost planning and control procedures can help you keep your project within budget, identify ways to save on labor and material costs, and de-risk your project. Whether you’re working on a simple renovation, new home build, commercial or industrial project, or high-rise residential project, we can help you achieve your project goals.

Choose Newin Building Estimating Services for your next building project or home construction on the Central Coast, and have greater confidence in your project budget and forecasts. Contact us today to learn more.

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 blowout.
Hai Nguyen building estimator sydney

Get the Honest Truth on what your Build will Cost

Hi, I’m Hai Nguyen, founder of Newin Building Estimating Services, and that’s what I’ll help you do – get the honest truth about what your building project will cost, so that you can make the best-informed decision.

Over the years we’ve seen clients get caught out with overpriced builders or simply inaccurate costings that sadly leave many financially strained.

Our number one focus is providing you with a return on investment (ROI) on the reports you receive. And that means we’ll spend the time with you to identify opportunities to save and get the best bang for your dollar.

Read More

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.

Powered by more than 18 years of experience in the construction industry, we proudly service leading builders, architects and developers across Sydney and Melbourne as well as homeowners directly, that trust Newin with their building projects.

We pride ourselves on being hands-on, affordable and eager to share ways on how you can bring your building project to life, with complete control, on time, and within budget.

Our complete range of Central Coast services 

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
Building Consultancy
Finance Reports for Banks & Financial Institutions
Building Cost Disputes and Reporting
Contract Administration
Council Cost Reports (Section 94 Estimates)

Feasibility Studies for Builders & Developers

Cost Planning by Project Phase- Concept, Design, Detailed & Tender

Building Progress Claim Reports & Variation Assessments

Do I need to get a
Building Cost Estimate?

We get asked this question all the time and the answer is- can you afford not to? Can you afford…


Uncertainty during construction is an unfortunate reality, especially with building and labour cost increases in the last two years. We aim to empower you by offering greater peace of mind that you’ll be able to complete your project within budget.


Financial loss?

Building costs are going up, with some materials 4X compared to two years ago. We’ll help you identify material and labour cost-saving opportunities in the thousands.

Project delays?

With highly transparent cost plans and documentation that can be communicated to trades and suppliers, your project will have a much higher chance of being completed without costly delay. We can point out areas of your build where potential delays can occur to allow for fore sight in the construction timeline.


Financial exposure?

Incorrect cost plans and building budgets may affect your construction loan and bank finance capacity. We aim to help minimise this risk by providing highly accurate cost reports based on the latest market rates.



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

Learn more about our construction estimating process across the NSW Central Coast

At Newin Building Estimating Services, we provide comprehensive construction cost estimation services across NSW and the Central Coast. Our team of experts works closely with subcontractors and suppliers to obtain current market rates and company historical data to determine the most accurate cost of materials and labor for your proposed project design and specifications. With our detailed cost estimate report, our clients can make informed decisions and adjust project specifications to align with their budget requirements without compromising the quality of the final result.

Our advantage

We take a unique approach to construction estimating that sets us apart from other agencies. Rather than relying on generic cost guides like Rawlinsons or Cordells, we use our expertise and knowledge of the Central Coast market to provide accurate estimates based on real, local data. Our rates are tailored to the specific requirements of each building project, taking into account factors like location, local contractors, and level of finish.

We believe in providing our clients with the most accurate information possible, which is why we highly recommend using our services in the concept stage of a project. By estimating likely costs at this early stage, we can ensure that the proposed design fits within the client’s budget requirements. Our in-depth knowledge of the Central Coast area allows us to estimate structural and foundation costs with a high degree of accuracy, typically within 15% of actual costs once full project documentation is developed.

At Newin, we understand that relying on a typical square meter rate for a building project can be dangerous, as it fails to account for important variables like foundation material, site access, specified materials, and engineering and council requirements. That’s why we always recommend engaging a construction estimator to provide an in-depth analysis of actual costs for a project.

If the full project documentation has already been completed and costs are higher than expected, we can perform a value engineering exercise similar to what Quantity Surveyors would do. By studying the project construction costs as a whole, we can recommend alternative materials and structures that can reduce building costs without compromising the design’s intended scope. At Newin, we’re committed to helping our clients achieve their budget goals while maintaining the highest quality standards.

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

Cost Estimate Outsourcing

Solutions for builders, developers and architects  to outsouce their cost estimates, saving time, money & risk

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

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