Why Use Us?

We are a leading builder of premium quality, affordable Granny Flats in Perth WA. All our Granny Flats are of the highest quality, being constructed of double brick or timber framed. Hallmark Developments is a leader in the design and construction of quality dwellings for investor granny flats and premium backyard homes along with being a premier home builder. Western Australia has seen an ease on granny flat legislation, introduced as a way of providing more affordable accommodation opportunities for the elderly, singles and couples. In particular, this has taken place in expensive metropolitan areas with land shortages. The granny flat is also an ideal solution for families with young adults who can’t afford to move out of home yet, but allows independence and extra space from parents, as well as future rental opportunities. Why would you risk going anywhere else? So, why Hallmark Developments?

  • We take care of the whole project from design to construction
  • We are not a kit home or transportable building company
  • We custom design and build our homes in your backyard
  • Our homes are built on a solid concrete slab
  • Our homes are fully insulated
  • All services are connected
  • Everything is complete, so all you have to do is move in…it’s that easy!!

Contact us today to get your project started.

If you would like to view further information on the building services we offer, please click here…

Looking at other ideas for your home or considering building?

Please take a look at our Home Building website


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Get In Touch With Us


4/49 Boranup Ave Clarkson WA 6030

Postal Address:
PO Box 2693,
Clarkson, WA 6030