Built for life.
Built for you.
About us
Specialist, client-centric builders.
Onform Building is a specialist, award-winning construction company delivering high-quality renovations, extensions and custom homes on the NSW South Coast.
Being a specialist builder means we intentionally limit the number of homes we build so that every client receives dedicated attention, direct communication, and uncompromising craftsmanship.
Onform Building is headed by Tyler Gumley, a third-generation builder born and raised on the NSW South Coast. Together with his team of experienced local tradespeople, the focus is on you. From the initial consultation through to project completion, we take the time to understand your vision, lifestyle, and goals, ensuring every detail of the build reflects your individual needs.
Our services
Delivering high-quality renovations, extensions and custom homes.
Whether you are building your forever home, renovating your existing residential or commercial property, or upgrading your kitchen or bathroom, our friendly team of experienced tradespeople will turn your vision into reality.
We have consistently found that projects achieve the best outcomes when the builder, designer, consultants, and client work together from the very beginning. For this reason, we offer a pre-construction design consultancy service to ensure every project is beautiful, buildable, and aligned with your budget.
Design consultancy
As experts in residential construction, we offer an industry-specific consultancy service to guide the design process.
Renovations
We specialise in thoughtful, high-quality renovations that blend existing spaces with new, ensuring every detail feels intentional and cohesive.
New builds
We specialise in delivering custom new homes that combine considered design, exceptional craftsmanship, and enduring quality.
Extensions
We specialise in seamlessly integrating new additions with existing homes.
Our philosophy
We approach every build with the following beliefs.
01
We believe meticulous preparation leads to a smoother build.
02
We believe open communication and collaboration are the foundations of a successful build.
03
We believe in continuity - by taking on a select number of projects each year, we give your build the attention and continuity it deserves.
Let’s start building.
Recent projects
Every project in our portfolio represents our passion and our commitment to creating homes we’re proud to put our name to.
Buchan Street, Mollymook Beach NSW
What was a dated 1980s brick home, has been reborn as a modern seaside sanctuary.
Highview Drive, Dolphin Point NSW
This 1960s timber home has been completely reimagined into a stunning modern seaside sanctuary, combining bold colour, timeless finishes, and sustainable design.
Award winner: best renovation under $500,000 at the 2025 Southern Regions Excellence in Building Awards.
Stony Creek, Milton NSW
This comprehensive renovation and extension transformed the property into a highly functional, energy-efficient home while dramatically improving the surrounding landscape.
Client testimonials
What our clients say about working with us.
“When we met Tyler Gumley from Onform Building we felt we had connected with the right person. He was honest with us from day one; he provided clarity about design options, realistic timelines and realistic costings; and helped us understand the complexities of the building code.
Tyler demonstrated his expertise and ingenuity throughout the build. He identified and rectified design and layout issues that were embedded in the plans that we had commissioned from a draughtsman. He worked closely with us to keep us informed of each stage of the build, providing thoughtful and sometimes ingenious design options to improve the aesthetic and functionality of the house. The workmanship of his team was of the highest standard and lastly, he and his team were professional and courteous at all times.
Since the build was completed we have had other tradespeople come into the home for various reasons and invariably they have remarked on the quality and workmanship of the build which in turn, made their job easier.
It is two and a half years on from when the build was completed and we continue to love our home. To this day we are happy to provide recommendations for Tyler as a builder of choice. As an aside, we find that we do this often as people walk past and admire our home.”
“I highly recommend Tyler as a builder. He had a pragmatic approach, great communication and presented options back to us.
Our renovation was on a difficult property where challenges came up along the job. I was impressed with his approach to resolving the key ones and parking the minor ones for future days.”
“Tyler and the Team at Onform Building have completed multiple jobs for me and I find working with them a breeze.
Tyler is an extremely professional builder / business owner and has an amazing eye for detail. I would certainly recommend Onform building to anyone looking to complete the smallest of renovations to high end new builds.”
“In 2021 we decided it was time to update our bathroom and laundry. For a year, we tried various builders who inspected our rooms, discussed options and promised drawings and quotes – but didn’t return phone calls or messages. Frustrating and unfortunately, not unusual.
Tyler Gumley of Onform Building was the exact opposite – and so we are more than happy to offer this testimonial to his professionalism, his concern for his clients (keeping us up-to-date with progress, costs and discussing any developments with suggestions for improvements), his management of asbestos removal and coordination of tradespeople. Nothing was too small or too difficult.
The results for us were renovations that were exactly what we wanted. We could not have asked for more. We so appreciated his expertise and workmanship and professionalism that we have engaged him to do extra work because we know he will not disappoint and our home will suit us better.”
Let’s work together