Designed & Built in Perth

Granny Flats & Retreats

Find your modern and stylish granny flat or retreat for an older or younger family member, rental space or extra room for your property

Granny flats, pods and retreats built right here in Perth, Australia

Let us design and build your perfect granny flat in less than 4 weeks. We have over 50 years industry experience delivering residential and commercial products and this experience coupled with our state-of-the-art machinery and expertise means we can deliver this for you cheaper than anyone else. Speak with us today and a month from now you could be enjoying or renting our your brand new, modern granny flat.

Enquire Now

Very Affordable

Granny flats by Steel Frames Trusses are on average 50% cheaper than other local manufacturers.

Ready in 4 Weeks

We are faster at delivering our granny flats than anyone else thanks to our state of the art machinery and efficient processes.

Premium Finishing

We use the strongest materials and modern finishes to ensure your granny flat not only exceeds your expectations but is built to last.

Custom Build

Unlike other builders we don’t box you in with the same design as everyone else. Our granny flats are custom built to meet your specific requirements.

I was previously working with an architect for 12 months for my granny flat project which ended up being a complete waste of time. I was referred to Steel Frame Trusses as specialists in modular systems and granny flats and I couldn’t be happier. They knew the process inside out and delivered our modern granny flat in next to no time. We are now living in this while we complete renovations on our house and then we will be renting it out as an additional income stream. I only wish I knew about them sooner!

HomeownerPerth, WA
Steel Frames Trusses WA

Watch a granny flat build in action

Much more than a granny flat


  • Rental stream
  • Temporary home during renovation
  • Teenagers/kids retreat
  • Elderly family residence
  • House extension
  • Bar and entertainment zone
  • Pool house
  • Home office
  • Guest house
Granny flat builder perth - Steel Frames Trusses WA

How we deliver your dream granny flat or student pod

Submit your enquiry

Once we receive your enquiry we will be in touch to ask a few questions to get a solid understanding of your requirements

Requirements meeting

We will organise a meeting either at our offices, your place or at a café (coffee is on us!)

Site visit

We will visit your property to inspect the footing and make suggestions for best layout and location

Council paperwork

We will work with your council to sort out all the approvals and paperwork. Don’t worry we do this all for you!


We will draft up designs of your granny flat (including 3D live renders) and when you’re happy begin construction

Delivery and move in!

We deliver your granny flat to site and our team will be on hand to complete the install. All that’s left is move in!