Smith & Sons Southwest is a locally owned and operated building company servicing Bunbury, Busselton, Margaret River and surrounding areas throughout the Southwest of WA.
We specialise in renovations, extensions, architecturally designed homes and custom-building projects — from kitchens and bathrooms through to major structural renovations, second-storey additions and complete home transformations.
Design • Plan • Construct
We provide a complete building service from initial concept through to completion.
Design – Working with you and our design professionals to turn your ideas into a practical, considered design.
Plan – Coordinating engineering, approvals, selections and construction planning.
Construct – Managing the build with experienced trades, quality workmanship and clear communication throughout.
Our Capabilities
• Architecturally designed homes & custom builds
• Major renovations & extensions
• Second-storey additions
• Structural alterations
• Kitchens & bathrooms
• Outdoor living & complete home transformations
Whether you’re renovating your existing home, planning a major extension or looking to create a bespoke architectural home, talk to the local team at Smith & Sons Southwest about bringing your project to life.
Smith & Sons Southwest is led by CJ Harris, a registered builder with more than 20 years of experience in the building and construction industry.
Beginning his career on the tools and progressing through carpentry, construction and project management, CJ has managed the construction of more than 500 homes across Western Australia, along with renovation, commercial and industrial projects.
Today, Smith & Sons Southwest combines that experience with a strong team of local trades, suppliers, designers and industry professionals to deliver renovations, extensions, architectural homes and custom-building projects throughout the Southwest.
As a locally owned and operated business, we pride ourselves on quality workmanship, clear communication and practical advice. Whether it’s a renovation, major home transformation or architecturally designed new home, our aim is simple — to deliver a project both our clients and our team are proud of.
Why Choose Us?
• Experienced registered builder with extensive residential and construction experience
• 500+ homes managed across Western Australia
• Local South West team and trusted trade network
• Renovations through to architectural homes
• Design • Plan • Construct service from concept to completion
Unlocking the True Potential of Homes in WA’s South West
Nestled along Western Australia’s stunning coastline, the South West region is one of the state’s most sought-after places to live, work, and raise a family. Encompassing vibrant communities such as Bunbury, Australind, Davenport, Withers, Leschenault, and Daleyellup, this part of WA strikes the perfect balance between laid-back coastal living and modern convenience. From bustling town centres and thriving local businesses to beautiful bushland and pristine beaches, the South West offers residents a lifestyle that’s hard to beat.
For homeowners in this region, renovating isn’t just about updating tired spaces — it’s about adding genuine, long-lasting value to their biggest asset. Whether it’s transforming an outdated kitchen into the heart of the home, refreshing a weathered bathroom, or extending living areas to suit growing families, well-planned renovations can dramatically increase both the comfort and market appeal of a property.
The South West is known for its diverse mix of older character homes, family-friendly suburban properties, and modern builds, each with its own potential for improvement. Renovating older homes in areas like Bunbury or Withers can breathe new life into classic designs, blending heritage charm with contemporary functionality. In growing suburbs like Australind and Dalyellup, renovations and extensions are a smart way for families to adapt their homes to changing needs without the hassle and cost of relocating.
A quality renovation not only modernises a property but also takes full advantage of the region’s natural beauty. Adding an alfresco area, updating outdoor entertaining spaces, or opening up living areas with larger windows can maximise light, airflow, and the stunning local views that make the South West so special.
Equally important is the value that thoughtful renovations bring when it comes time to sell. In today’s competitive market, buyers are drawn to homes that feel move-in ready, stylish, and practical. Smart improvements can deliver a solid return on investment and help homeowners stand out in sought-after suburbs where demand remains strong.
For locals looking to stay in the community they love while enhancing their lifestyle and boosting their property’s worth, renovating is an investment that pays off — now and well into the future.
We cover areas such as:
- Augusta
- Australind
- Binningup
- Boyanup
- Boyup Brook
- Bridgetown
- Brunswick Junction
- Bunbury
- Burekup
- Busselton
- Capel
- Carey Park
- Clifton Park
- College Grove
- Collie
- Cowaramup
- Dalyellup
- Dardanup
- Davenport
- Donnybrook
- Dunsborough
- East Bunbury
- Eaton
- Ferguson
- Gelorup
- Geographe
- Glen Iris
- Harvey
- Leschenault
- Manjimup
- Margaret River
- Nannup
- Pelican Point
- Pemberton
- Roelands
- South Bunbury
- Stratham
- Treendale
- Usher
- Vasse
- West Busselton
- Withers
- Witchcliffe
- Yallingup
- Yalyalup
Smith & Sons Southwest provides complete building, renovation and construction solutions, including:
• Architectural & Custom Homes
• Major Home Renovations & Transformations
• Home Extensions
• Second-Storey Additions
• Structural Alterations
• Kitchen & Bathroom Renovations
• Outdoor Living, Patios & Decks
• Unit & Apartment Renovations
• Commercial Renovations & Fitouts
• Insurance Building & Repair Work
• Custom Building Projects
From individual renovations to complex architectural builds, our experienced local team can manage your project from concept through to completion.