House and land in Forrestfield from $839k, learn more.

Our Modular Display Home is now open in Canning Vale, learn more.

Limited spots left for our Women in Property Breakfast event! Register Now 

Granny Flat Building Process

Get the keys to your granny flat sooner

Step by step

Granny Flat process

Summit has a streamlined six step process, which means once you have met with one of our design consultants, we take care of everything right through to completion.

After all, we’ve been building granny flats for 48 years.

Please note elevation images are for illustrative purposes only and are not necessarily what your individual end design might reflect.

Book a consultation

Six Step Granny Flat Process

Inspection
Design
Presentation
Prestart
Construction
Handover

Step 1 | 6

Obligation free site inspection

One of our experienced design consultants will organise a time to meet with you at your home to discuss your ideas, dreams, wishlist and budget.

Step 2 | 6

Design meeting

This is where your ideas come to life. Your design consultant presents you with a custom designed concept crafted to suit your lifestyle and budget. Your input is important, and your design consultant will listen and incorporate your feedback and ideas so you’re fully satisfied with the planned granny flat.

Step 3 | 6

Presentation meeting

We want your granny flat to be perfect and will present you with: (1) final plans, (2) HIA fixed price contract and (3) a full breakdown of what work we will be completing (specification of work). From here on in, we will look after the whole process including building permits with your local council.

Step 4 | 6

Prestart meeting

Meet with your prestart consultant at our stunning style studio to pick out your colour selections, fittings and fixtures.

Step 5 | 6

Construction

Your granny flat’s construction will be managed by your dedicated site supervisor. A final timeframe will be provided to you before site commencement.

Step 6 | 6

Handover

Receive the keys to your granny flat and now it’s time to make your little house a home.

Your Free Guide to Granny Flats

Get an understanding of granny flat product options and how it can add value to your life, your family’s life and your property.

Download your guide

Frequently Asked Questions

Do I have enough room for a granny flat?

Whether you need a teen scene, pool house, or room for extra family members, we have a stunning range of granny flat designs to suit a variety of block sizes. Our designs start from 50 square metres and can be as large as 100 square metres. We also offer custom designs to suit you and your block.

Do I need council approval?

Yes, this is something Summit will take care of, ensuring all council approvals are managed efficiently.

How long will it take and what does it cost?

Each journey and timeframe is different, as each granny flat we build is tailored to suit your needs and your block. Once you have sat down with your consultant, chosen a design for your block and gone through the finer details, you will be provided with more accurate details on costing a timeframes.

My block shape is irregular – is it still possible to build a granny flat?

We offer custom design granny flats to suit your lifestyle needs and block requirements/shape. If you are unsure, our dedicated consultant will be able to visit your site and provide some more information.

Granny Flats journal

Check out our helpful tips to guide you through your building journey.
 
View all posts

Granny Flats

How Much Does a Granny Flat Cost? A Summit Granny Flats Cost Guide

If you’ve been searching “how much does a granny flat cost,” you’ve probably noticed the answer varies wildly depending on…

Granny Flats

Why granny flat service connections matter more than you think

If you’re thinking about a DIY or flat‑pack granny flat option, the idea of a quick, affordable backyard build can…

Granny Flats

Renting Out a Granny Flat in 2026: Perth Rules, Tips & Realistic Income Expectations with Summit Granny Flats

Granny flats have become one of Perth’s smartest property investments in 2026. Whether you’re looking to generate granny flat rental…

Granny Flats

Helping Your Kids Get Ahead: Why More Perth Parents Are Building Granny Flats for Their Adult Children

For many young adults in Perth, buying a first home is tougher than ever. With property prices climbing, lending rules…

Granny Flats

City of Kwinana Zoning Update: Why Now’s the Perfect Time to Build a Granny Flat

Exciting news for homeowners and property investors in the City of Kwinana – a recent planning change has made it…

Granny FlatsModular & TinyTips and Advice

What’s the Difference Between a Granny Flat and a Tiny Home in WA?

What’s the Difference Between a Granny Flat and a Tiny Home in WA? Why Small Living is the Future: Granny…

Granny Flats

Granny Flats: A Key Solution to WA’s Housing Shortage

Granny Flats: A Key Solution to WA’s Housing Shortage WA’s Housing Challenge and the Role of Granny Flats Western Australia…

BuildingGranny Flats

Granny Flat Reforms in WA: A Game-Changer for Housing

Granny Flat Reforms in WA: A Game-Changer for Housing As housing affordability remains a major concern across Australia, the WA…

Request an appointment

Speak to someone about your plans. Whether you’re considering building, renovating or developing our experts can guide or answer any questions you might have.

08 9317 0141

Head Office & Style Studio

242 Leach Hwy, Myaree WA 6154
Monday – Friday: 8am – 5pm
Saturday: 9am – 2pm
Sunday: Closed

Back to top