New Homes, Renovations & Extensions in Wollongong

Building Renovation Company and Residential Building Experts Servicing the Greater Illawarra, Sutherland Shire Region and Eastern Suburbs Area.

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Seaside Building & Design is a reputed home building company with years of experience in building double occupancy residences. Our team have over 20 years of industry knowledge and...


Home Renovations

If you love your current home and where you live but want to upgrade your bedrooms, renovate your room or bathroom, remove unnecessary walls, change the design of your...


Top Floor Additions

There is nothing worse than running out of space in your own home! Here at Seaside Building & Design, we offer constructions services for top floor additions to your...


New Homes

Looking for new home builders? We have decades of experience in building new homes for our clients. Our licensed team can bring your dream home into reality.


Home Extensions

Is your family growing and in need of some extra space in your home? Seaside Building and Design offers professional home extension services in Wollongong.

Looking out back window and onto decking

We Are Your Local Home Builders and Residential Construction Experts

Seaside Building & Design specialise in the construction of new homes, as well as home renovations, home extensions and building renovations. Our team consists of passionate home builders based in Wollongong who service the Illawarra region (from Helensburgh through to Kiama), the Sutherland Shire region (from Engadine through to Cronulla), and the eastern suburbs area (from Maroubra through to Watson bay).

We have developed home building processes that involve you from the beginning to ensure your vision becomes a reality and project success is achieved. As one of the highly reputable home renovation and building renovation companies in Illawarra, we have developed great relationships with local architects, designers and home builders across the Illawarra Region and can guide you to a contractor that suits your specifications. We ensure your dream home’s construction quality is impeccable, and give you a peace of mind through our outstanding communication and a 7-year warranty on all of our new homes.

With our custom home construction options and quality guarantee, Seaside Building & Design can help make your dreams a reality. Our dedicated new home builders can help you build your new home and create your desired luxury house extensions, renovations or additions.

Get in touch with Seaside Building & Design the reputed home builders in Wollongong to build a custom home, complete house extensions or renovations. We bring your dreams into reality.

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Luxury Builds At Fair Prices

We are leaders in new home construction, house renovations & extensions in the Illawarra, Sutherland Shire and Eastern Suburbs region.

7-Year Warranty

Seaside’s residential homes are fully insured and covered by a 7-year warranty to give you and your family peace of mind.

Locally Owned & Operated

We know Illawarra and its people. We’ll help actualise your dream custom home, extension or renovation.

Experienced Builders

We are an in-demand home builders company in Wollongong and a proud member of the Housing Industry Association.

Featured Projects

Lassiter Street


The Grove


Gray Street, Woonona


Hope Church, Helensburgh


Tristan Avenue


Royal Crescent


Allen Street


Arbertillery Road


Broadridge Street


George Street, Thirroul


What Our Clients Say

Aaron’s effort and consideration at quoting stage was outstanding! He took the time to find out what we wanted, what our budget was and gave us options and alternatives to get the best outcome for us and his quote was by far the best we’d received. That then set the tone for the entire job. Aaron and his team were professional, friendly, and punctual and if there were any issues we were aware of them straight away and had complete confidence they would be taken care of without any stress on us. We highly recommend Seaside Building & Design to anyone for any build, big or small, and will definitely be contacting Aaron again for any further work we want done.

Daniel & Krystal Oliver

We recently had Seaside complete an extension to our home. From the planning stages through to completion, Aaron was very helpful and generous with his time, talking through our options and giving recommendations. The Seaside team was always courteous and helpful and their attention to detail was great, they were flexible with changes during construction, and they were always keen to make sure we were happy with how things were going. We are very pleased with the quality of their work and love the new space!

Mike & Mindy Currie

We embarked on to build our dream and ‘forever’ home. That dream has just become our family’s reality and we love it. Thank you to the awesome Seaside Building and Design team. Led by Aaron, their work was of the highest standard! The respect and care they constantly offered our family during the whole process was one of the highlights for us. They fully appreciated the pressure on our young family and made sure they did all they could to support us. We are super glad we chose Aaron and his team. They have become more like family and I know we have made lifelong friends with all the Seaside crew.

Henry & Anissa Rajendra

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