Sydney – Melbourne

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.

Get the honest truth on how much it will cost you to build.

Who Are We?

Hi, I’m Hai Nguyen, founder of Newin Building Estimating Services, and that’s what I’ll help you do – find the honest truth about what it’ll cost to build.

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.

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 10 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 Building Estimation Services 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.

What we do


Our client-focused services include:

  • Building cost estimation reports aimed at delivering you a high ROI.
  • Quantity surveying monitoring through all phases of your construction, meaning “no surprises”.
  • Custom made building consultancy servicing commercial, industrial and residential construction projects. Call us for a chat?
  • Cost plans starting from $990

What can you expect

Cost Expertise

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

All Types of Projects

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

Same Time and Money

You won't have to worry about training staff or the risk of inaccurate reports. We'll help reduce your in-house admin time and costs significantly.

Grow Your Business

When you don't have to worry about your costing process, you can focus on what really matters - growing your business and making your clients happy.

Who We Help

Architects & Designers

We help to ensure your proposed designs  stay within clients budgets



 We partner to help you win more projects and ensure you are up to date with subcontractor market rates

Home Owners

Don’t get caught out with overpriced builders


 We partner to help you profit

Proudly introducing our Outsourcing Solutions


Builders- Developers- Architects- Designers


Outsourcing your building cost estimates will save your time, money and risk


 We partner to help you win more projects 

Locals Trust Us

“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

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

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

Proud Sponsors of the Football Connection Academy

Sponsorship is really all about one word: community. Building it up, backing the group, and supporting them as they grow. 

We’re proud of our community here in Sydney and even more proud to invest in the development of kids’ sport. 

We enjoy our time with everyone involved in the Lidcombe Zone, but most of all we enjoy the look of pride on the kids’ faces when the whistle blows. 

Well done, kids. We look forward to helping you grow.

Frequently Asked Questions

How do I start the process?
Simply call or email us at Newin Estimating Services, provide us with the details of your project and any documentation which you may have at hand and we will review and respond with a quotation for the Cost Estimate. If you are satisfied and approve the quotation we will request a deposit payment which will be required before we commence your Cost Estimate.
How long does an estimate take to produce?
Following the approval to proceed and payment Newin Estimating Services will aim to have your cost estimate returned to you in 72 hours. Some estimates take longer than others, as the project may have specialist trades or additional requirements – the time frame for completion of each Cost Estimate will be given to you with the initial quotation.
What format is the estimate sent in?
The Cost Estimate will be emailed to your contact address, in .PDF format, for your review. Following review any changes can be made and a revision will be resent to you.
Do you have a sample estimate to review?
Sure, visit our Samples Page for an example of a complete Cost Estimates and trade Break-ups for different types of client. These are standard formats for each Newin Estimating Cost Plans.

Can you guarantee total accuracy?
We cannot provide you a full guarantee over every cost issued, as the Building and Construction Industry typically fluctuates with global and local markets and price indices. Every Newin Cost plan is however developed by a Quantified Quantity Surveyor with over 18 years experience and current industry working knowledge.
I need a timeline for my project, can you assist?
Yes, we are able to provide you with an associated and accurate Construction Programme which is developed in conjunction with the Cost Estimate. This is prepared by an experienced Construction Project Manager who will analyse the provided project documents and Newin Cost Estimate and schedule the works in the most efficient way possible.
How do I deliver my project documents to you?
If the files and documents you have are of a size which is able to be emailed, then these are best sent to If however, the files are of a size which prevents email transfer, then use our Dropbox page to upload your larger files safely and securely directly to us. Alternatively, if you gave hard-copy documents then these can be posted or couriered to the following address; Newin Estimating Services PO Box 361, Ermington NSW 1700

Get in touch

If you have any questions of your own you’d like answered, please don’t hesitate to give us a call on 


02 8015 5103 




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Building & Estimation Services in Sydney and Melbourne

Level 9 Avaya House 123 Epping Road
Macquarie Park  NSW 2113
Call: 02 8015 5103

Level 27 101 Collins Street
Melbourne VIC 3000
Call: 03 7003 6994

Operating Times: 8.30am to 4.30pm Monday- Friday


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