Construction Assurance

What Makes A Great
Granny Flat Builder?

In our opinion, a great builder is one which:

  • Understands your needs and situation
  • You can count on for accurate information
  • Can help you understand the process
  • Understands compliance and can explain it to you simply
  • Helps you overcome limitations
  • Has been in business for a long time
  • Has repeat customers
  • Is financially stable
  • Has a clean record with the Department of Fair Trading
  • Is highly recommended
  • Will come back and fix issues in the future

We intend to be here for you today and in the future. We want to build your home with a long term relationship in mind. We’d love to bump into you and be able to look you in the eyes knowing that we’ve given you a great experience, produced a great result and that you are rewarded with fantastic investment returns or creating wonderful memories in your Granny Flat.

The Granny Flats Australia Difference

First in the industry

We at Granny Flats Australia can proudly say that we are the first Granny Flat Specialist in NSW. Since 2009, we have contributed to the changing laws and the preparation of the Affordable Rental Housing SEPP that has made Granny Flats available state wide through the Complying Development Process (instead of DA approval through local council). Our extensive knowledge and experience in the industry has resulted in the successful construction of thousands of quality granny flats and a structured simple process for our clients.

We Are the Builder

There can be some confusion in the marketplace between a marketing company and the builder. Granny Flats Australia is not just the marketing front of our business. We are the builder and take responsibility from your first enquiry to the handover of your granny flat. There will be no surprises along the way.

Internal Quality Control

We pride ourselves on the finish of a quality Granny Flat. Our quality control specialists and system ensures an outstanding result. We want you to be wowed by your Granny Flat and if we’ve missed something, you can be assured that we’ll be right onto it.

Work Safety

All employees and subcontractors are someone’s son, daughter, brother, sister, mother or father. We want to make sure that all members of our team go to work and get home safely. That’s why our business has a dedicated Safety Officer ensuring safety at work. We include safety rails for our roofers, safety platforms for carpenters, traffic control on busy roads, Safe Work Method Statements from all trades and a quality induction process to all workers entering your property.

Home Owner & Tenant Safety

Your family, children and pets are our number one priority, so during construction we have our work zone fenced off from your back yard creating a separate work environment. Further to this, we have OUR OWN TOILET provision for staff and a dedicated skip bin for material waste (where permissible) to make the construction journey as pleasant as possible.


Granny Flats Australia use the ‘Department of Fair Trading’ Contract because we believe that this is the fairest contract for our clients. This gives you peace of mind that you are using a contract that has been developed by the people that have your best interest in mind.


If things go wrong for any reason, you want to know that you are dealing with a business that is fully insured. We have so much cover minimising any exposed risk should it present itself including

  • Builders All-Risk Insurance – This covers the granny flat and house during construction
  • Home Owners Warranty – This covers the structural warranty for 6 years
  • Public Liability Insurance – Protecting damage to property
We are fully insured and so are you!


When choosing our suppliers we are looking to partner with companies that:

  • Have a long history
  • Have a solid safety policy
  • Provide a strong warranty
  • Reasonably priced

Have questions?

If you are interested in building a granny flat to your property, either for
investment, extra income or additional living space for family, contact
us today.

Granny Flats Australia Pty Ltd
ABN 49 137 405 513
8/10 Anella Avenue, Castle Hill 2154


Monday-Friday 9am-4:30pm
Closed for lunch 1pm-1:45pm daily


Saturdays – Closed
Weekdays – 9am – 4:30pm

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