Granny Flat Designs

Granny Flat Designs

Whether you are an owner occupier or investor, our modern granny flat designs can generate passive income while raising the value of your property. Compact in design, granny flats can serve as a guesthouse to accommodate friends and family without compromising space in your newly built home.

If you’re looking to knockdown rebuild on your existing block or buy land with the intent to build a house and granny, we can help design an adjoining or freestanding granny flat as part of your new home build. We have extensive experience building quality granny flats in greater Sydney for owner occupiers and first home buyers as well as investors and property developers.

With full consideration of any local government council requirements and State Environmental Planning Policy, Worthington are there throughout all stages of the build. At the end, you get a high-quality new home with a fully self-contained granny flat that is both contemporary and comfortable.

All house and granny flat designs come with a BASIX certificate and are built to Building Sustainability Index (BASIX) requirements, which apply to all residential construction developments in NSW. What this means is your house and granny flat will be built with optimum water saving, energy efficiency and thermal comfort for variance in climate.

Your new home can also be constructed to be ‘smart home’ ready, which means it can be easily integrated with automated technology systems that allow control over lighting, room temperature, TV/AV connectivity, security and solar power via a smartphone.

We are always adding new granny flat designs to our existing range of home designs, so talk to us today about a spacious floorplan for granny flats to suit your needs.

Granny flat designs are only available when built in conjunction with a new home. We do not build granny flats on their own.


  • 4
  • Any
  • 2
  • Any
Car Spaces
  • 2
  • Any
  • Single
  • Any
Minimum block width (m)
Total house size (m²)



Why build with Worthington?

No hidden costs

All costs are calculated upfront, so you will never be stung with hidden site costs and fees.


No suprises

We are 100% transparent throughout the entire building process so you'll always be fully informed.


No gimmicks

Our packages and inclusions are genuine, so you're not paying extra for standard house features.

Value for money

We offer competitive pricing on new homes without compromising on quality and service.

Quality workmanship

We pride ourselves on building beautiful houses with quality interior and exterior finishes.

Open communication

We are a family-owned business, which means you can talk directly to your builder and site manager at any time.

At Worthington Homes, we want your biggest investment to be a happy and positive experience. Plus, we build beautiful new homes that will make a lasting impression.