Granny Flats Sunshine Coast

Granny Flat designs to meet any requirement.

Granny Flat – Design Freedom

Granny Flats have become a very popular alternative to the mainstream building method employed by your typical house builder.

The Sunshine Coast is particularly suited to the Granny Flat style of liveable space due to its laid back life style and the many rural, semi rural and rural residential blocks of land available.

Quite a number of farm properties are being subdivided and presenting wonderful opportunity to those wanting a much more basic style of building which costs so much less than the more ‘typical’ ways of building a liveable space. Also on the Sunshine Coast there are many existing rural properties with established dwellings and due to local council by laws, there has been allowance made to permit a secondary dwelling(or Granny Flat).

There is a vast range of freedom in design when we consider that the Granny Flat structure is basically a large open space inside which there is freedom of choice as to the layout of rooms without the need to consider internal walls being required for the strength of the building.

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Superior Garages and Industrials - Sheds Sunshine Coast
Designer Shed Homes Sunshine Coast

Granny Flat – What to Consider

There are some things to consider when planning your home space:

  • Would you like mainly open living?
  • Or would you prefer more enclosed separate areas that are fit for different purposes?

There are many different forms of building to either standout as unique, or blend in with existing structures on your land. We can match roof shapes, blend colours etc

SGI has been building liveable Granny Flats on the Sunshine Coast and surrounding areas for more than 30 years. If you need help with the design process and installation of your Granny Flat, please give us a call. The earlier you call us during the decision process the better. This can save you lots of money in the long run.

We are proud of the fact that a large percentage of new projects are referred to us by previous clients or are previous clients returning for a new product or looking to extend their first.

We stand by the fact that to produce a quality building of any shape or size quality is essential in 3 main areas…

  • Structural design and integrity (specialised in-house engineering)
  • Quality of all building materials (genuine Australian steel and Colorbond)
  • Construction workmanship (Professional builders and contractors)

Our in-house Granny Flat design and engineering service allows for creative, functional and cost effective solutions.

Superior Garages and Industrials - Sheds Sunshine Coast

Liveable Sheds – Plan, Design and Live!

Granny Flat – the 7 step process


  1. Visit us at our full size indoor display centre at 35 Production Avenue Warana. Come with all your ideas and dreams for your Granny Flat space. Our friendly expert staff will give you the heads up on any restrictions and all the possibilities to match your wishes.
  2. Register on line as an owner builder** – we can guide you through this process. Very simple and only modest fee involved.
  3. Obtain services of a draftsperson who can translate your dreams on to digital plans – we can guide you to an appropriate reliable person for this service, if you don’t have anyone in mind.
  4. Bring those plans into us together with a soil test carried out at the location of your Granny Flat on your land – we have a couple of very reliable soil testing firms to recommend for this service.
  5. We are then in a position to give you a firm quote based on our scope of works as applied to your Granny Flat and when a price is agreed upon we draw up a contract agreement which is signed by each party.
  6. Then begins the process of preparing all appropriate engineering and documentation enabling you to obtain building approval with our private certifier – we can lead you clearly through this process, very simple and undaunting!
  7. Building process begins ……. then ends, with a joyful handover of your Granny Flat right here on the lovely Sunshine Coast.

Steps 2 to 6 are filled with many helping hand input from us (as required) to ensure you know exactly where you need to be for each part of the process to run smoothly.

EXTRA dot points to consider:

  • Sloping blocks – ideal for split level, elevated suspended floors thus avoiding expensive earthworks, or combined slab and suspended floor
  • Economical way to procure your first, additional or next home
  • Various cladding options for both internal and external applications
  • Steel frames = no more termite threat to your home’s structural integrity
  • Unique steel stud frame system
  • Eaves (soffits) easily catered for
  • Various insulation options available
  • Many roof shape options available
  • Try us out, we love the challenge of designing our structures to suit a person’s desires for shape, form and size of building
  • Lofts, full second floors, mezzanine floors
  • Exposed main frames for the Granny Flat look, but still fully the cosy home
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