Your Leading Granny Flat Builder in Newcastle, Sydney and the Central Coast

Backyard Grannys have developed a solid reputation for being Newcastle and the Central Coast’s number 1 local and most experienced granny flat builders.

We are passionate about creating high quality, affordable granny flats that are designed to achieve the ultimate return on investment while meeting the wide range of needs of our clients.

Building granny flats throughout Newcastle, Maitland, the Hunter, Central Coast and Sydney regions, our expert team are committed to providing our clients with the highest level of service and quality workmanship. We treat each granny flat that we build as if it were our own and work collaboratively with you to ensure your granny flat is designed and built on schedule, to the highest standard and within your budget.

Whether you are interested in building a granny flat for investment purposes, elderly family members, a home office or a teenagers retreat, Backyard Grannys have a contemporary granny flat design to suit your specific requirements

  • High quality construction
  • Fast approval
  • Wide range of designs
  • Turnkey pricing
  • Highly satisfied clients
  • Comprehensive granny flat package – approval, design, construction and project management


Fill out the form below to receive:
► a FREE consultation to see if your property is acceptable for a granny flat.
► 15 different granny flat designs that you can modify to suit you.
► a preliminary return report. See what rental return you can expect from your granny flat.

You can have your brand new granny flat built in as little as 12 weeks and receive up to 15% return on your initial investment.

Our Designs

The Orana
The Orana

Part of our designer range, the Orana is a very modern L shape granny flat.

2 bedrooms with built ins, 1 medium bathroom, separate laundry.

The Myall
The Myall

Featuring a dual skillion roof, this designer granny flat has a relaxed, beachy vibe.

2 bedrooms with built ins, 1 large bathroom, separate laundry.

The Berrigan
The Berrigan

Ideal for shared living, this design is popular in suburbs close to universities.

2 bedrooms with built ins, 2 bathrooms, laundry in bathroom.

The Elanora
The Elanora

One of our best selling designs, featuring a traditional cottage aesthetic.

2 bedrooms with built ins, 1 bathroom, laundry in bathroom.

The Yarra
The Yarra

The Yarra features a cleverly designed floor plan and a stylish gable roof.

3 bedrooms with built ins, 1 large bathroom, laundry in bathroom.

The Allambie
The Allambie

Another of our best selling designs, The Allambie features a modern skillion roof.

2 bedrooms with built ins, 1 large bathroom, laundry in bathroom.

The Bardo
The Bardo

The Bardo is the perfect design when you need extra room for another family member.

1 bedroom with built in, 1 generous bathroom, laundry in bathroom.

There are so many benefits to building a granny flat, including:

Additional income, with up to 15% ROI

Independent lifestyle for older relatives

Alternate living solution

Increased property value

Help children enter the property market

Intelligent use of extra yard space