Perth's Granny Flats Specialists
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Perth's Granny Flat Specialist are committed to meeting and exceeding your expectations. This old-world quality mixed with modern business sense and a business size which makes us highly responsive to your needs, places Perth's Granny Flat Specialist very uniquely in the market.

Owner and company Director, Shane Williams, has a solid knowledge of residential building and construction having been involved in the industry for most of his working career spanning over 30 years.He has owned and run several successful businesses but in 2013 saw an opportunity to really use his skills and expertise to help others through Perth's Granny Flat Specialist.
Services
Perth's Granny Flat Specialists will work with you to build you a superior quality granny flat that is built to your budget, on time and defect free. Our clients get to stay informed every step of the way and can sleep well at night knowing that they are being looked after by professionals who genuinely care.
Whilst we offer standard designs, most of our granny flat builds are completely unique and designed to coexist with your existing property. Whether you need an office, a teenager's retreat, accommodation for elderly relatives or a completely separate living space for rental income - we can make it happen!
When it comes to a home, there is no one size fits all. Everyone's perfect granny flat is unique. Take a look at the custom built granny flats below - they've all been designed in consultation with the owners to come up with the ideal granny flat for their needs and backyard. We work with you to build you a superior quality granny flat that is built to your budget, on time and defect free.
As a custom builder, Perth's Granny Flat Specialist can design an Ancillary Dwelling to accommodate all of your needs. We seamlessly manage the entire project from start to finish. We have our unique checklist to ensure even the smallest detail is not missed during the construction process. We never compromise on quality and our Quality Assurance Checklist gives you complete peace of mind.
Yes, we work with you to create a custom design that not only suits your tastes and needs, but your block as well. Yes, we have all the required current insurance policies for Building Works, Workers Compensation and Public Liability insurance. On an average, it takes 10-12 weeks for our granny flats to be built after the initial site works and slab has been completed.
Reviews (3)
Ian Sills
Ian Sills
Jun 21, 2019
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Our experience with Shane Williams was really positive. We appreciated his friendly smile and help backed by many years of experience which resulted in exactly what we wanted in a short period of time.
The workers he used were all friendly, respectful and top quality tradesmen. The result was a quality build that couldn't be faulted.
I would recommend Swan River Constructions for any granny flat project.
Daryl Cook
Daryl Cook
Nov 19, 2017
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Shane and his team have carried out several large and small jobs for my clients, he and his team have been very professional and the quality of the work has been exemplary. I'll be using Swan River Constructions and Shane again.
Pankaj Lehar
Pankaj Lehar
Jul 24, 2017
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It was pleasure to work with Shane, Awesome services at very reasonable price. Will surely look forward to work with them again