What is a Granny Flat & How Much Does It Cost to Build One?

What is a Granny Flat?

A granny flat is a self-contained, secondary dwelling built on the same property as a primary home. Traditionally, these compact homes were designed for elderly family members, but today, they are widely used as rental properties, home offices, guest houses, and investment units. Granny flats are also referred to as accessory dwelling units (ADUs), backyard cottages, or tiny homes.

The Rise of Expandable Houses as the New Granny Flat

In the past two years, expandable houses have gained popularity as a new type of granny flat, offering a more affordable and practical alternative to traditional granny flats. Unlike traditional builds, expandable houses are prefabricated structures that arrive flat-packed and expand into a full-sized home within minutes.

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