About The Granny Flats Warehouse

The Granny Flats Warehouse is a Western Australian family owned business, made up of people with a combined industry experience well in excess of 100 years. Our products are attractive, strong, sturdy and reliable. They also provide a great opportunity for generating additional income and increasing the value of your home.

As a leading Perth granny flat company we specialise in quality granny flats and room additions, providing expert advice and a range of affordable options to help you get the most out of your lifestyle.

At The Granny Flats Warehouse we offer a range of designs and sizes to suit everyone’s style and budget, or alternatively we can custom build to suit your needs. Choose from 1, 2 and 3 bedroom granny flat floor plans or house extensions to add value to your existing home, your income and your lifestyle.

We have display centres conveniently located at Canning Vale, Joondalup and Port Kennedy (servicing the Mandurah region), where you can see examples of our superior quality granny flats and room extensions for yourself. 

If quality and price are your priorities then The Granny Flats Warehouse is your solution.

The Granny Flats Warehouse is a fully accredited WA registered builder.

Our Products

At The Granny Flats Warehouse we build superior granny flats and room extensions at affordable prices.

Designed to offer a high standard of comfortable accommodation, they blend well aesthetically with most WA homes.

All of our granny flats and room extensions are fully constructed on site, adhere to the Building Code of Australia and come with a structural and service warranty.

Granny flats and room extensions can be built on a concrete slab or raised timber flooring to engineer's specifications.

All walls and ceilings are insulated.

The internal lining to walls and ceilings is Gyprock.

A range of external cladding options is available.

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