Granny flats, renovations and extensions, built right.
Ovas Build is a Wollongong-based builder with more than ten years in residential work, building across the Illawarra, the Shoalhaven, the Southern Highlands and Macarthur. One team and one point of contact, from the first site visit to a tidy handover, with approvals, engineering and a fixed price all handled.
- Local Wollongong builder
- 10+ years building
- Fixed-price proposals
Recent projects
A look at recent granny flats, renovations and kitchens across the Illawarra.
Modern granny flat
A dark-clad two-bedroom granny flat, designed and built for the block.
What we build
Granny flats, renovations and extensions from Wollongong across the Illawarra, Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur, plus the kitchens, bathrooms, carpentry and joinery that go with them.
A builder you can reach
Ovas Build is an owner-run builder based in Wollongong, working across the Illawarra, Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur. Granny flats, renovations and extensions, plus the kitchens, joinery and carpentry that go with them.
We keep it simple: one team, tidy sites, reliable local trades, and a fixed proposal so you know the scope and the cost before we start. Straight answers from the first call to the final clean-up.
Experienced
A Wollongong builder with more than ten years in residential construction.
One point of contact
You deal with the same team from the first visit to handover — no call centres, no runaround.
Fixed, clear pricing
A proper proposal with scope, inclusions and a timeline. No vague allowances or surprises later.
How a build runs with us
Five steps from the first phone call to handover — clear at every stage, with the approvals and engineering handled for you.
Site visit & options
We walk the block, check utilities, setbacks and access, and talk through what's possible and what it's likely to cost.
Design & approvals
We develop the drawings and handle the permits and engineering — CDC or DA — and lock in the floor plan, materials and finishes with you.
Fixed proposal
You get a clear, fixed proposal: scope, inclusions and a timeline, with no vague allowances or surprises down the track.
Construction
One team builds it with reliable local trades, a tidy site and steady progress updates so you always know where things are at.
Handover
We walk you through the finished build, hand over the manuals and documentation, and sort any final touch-ups promptly.
Recent builds around the Illawarra
Real Ovas Build projects — granny flats, renovations and the finishes inside them.
Where we build
Based in Wollongong, we build across the Illawarra, Kiama, the Shoalhaven, the Southern Highlands & Macarthur, from Helensburgh down the coast to Nowra and inland to the Highlands and Macarthur.
Wollongong & the Illawarra
Kiama & Gerringong
Southern Highlands
Don't see your suburb? We almost certainly still cover it — just get in touch.
Guides from a local builder
Straight-talking advice on granny flats, renovations and extensions — costs, approvals and getting the most out of your block.
Straight answers to what we get asked most
Do you build home extensions in Wollongong?
Yes. Home extensions are one of the three things we do most, from Wollongong and the northern suburbs to Shellharbour, Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur. That covers ground-floor additions out the back or the side, second-storey additions, and reworking the existing house so the new space actually connects to it.
Which way you extend is usually decided by the block rather than by preference. Most Illawarra homes still have yard behind them, and building out at ground level avoids the structural work that a new upper level demands, so it tends to be the cheaper answer where there's room. Going up wins when the block is tight, when you want to keep the whole backyard, or when there's an outlook worth chasing from a first floor.
We price the design, the approval and the build as one fixed-price proposal, so the number you plan around is settled before anything starts.
How we run an extensionGranny flat builders in Wollongong
We build granny flats as custom, site-built dwellings from our Wollongong base across the Illawarra, Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur, from the design and the approval through to handover. They're built the same way we build a house, not delivered as a kit and stood up on your block.
The reason that matters here is that very few Illawarra blocks are a flat rectangle. Slope, tree cover, sewer lines and where the existing house sits all decide where a second dwelling can go and how much site work it needs before a single wall goes up. A design drawn for your block deals with that; a fixed plan chosen from a catalogue leaves it to be discovered later.
Most granny flats in NSW can go through as complying development when the block and the design fit the rules, which is a faster certifier-issued path than a full development application. We work out which path applies to your address early rather than assuming it.
What a granny flat build involvesHome renovations across the Illawarra
We take on whole-house renovations as well as single rooms, through Wollongong, Port Kembla, Corrimal, Unanderra and south to Shellharbour and Albion Park, and further out to Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur. One licensed builder holds the job, books the trades in order and hands you a fixed price before the first wall opens up.
The decision worth making early is whether the house is short of space or just badly arranged. A lot of post-war Illawarra homes have enough floor area and a plan that no longer suits how people live, with a kitchen closed off from everything and the laundry and bathroom stuck on the back. Reworking that is often cheaper and quicker than adding to it, and it's the first thing we look at on site.
Older homes hide more than newer ones. Wiring, stumps, drainage and the absence of any insulation are the usual finds, so we'd rather open things up and price honestly than hand over a number that moves on you at month three.
See how we run a renovationDo you build outside Wollongong?
Yes. Ovas Build is based in Wollongong and builds in Shellharbour, Kiama and Gerringong, the northern Shoalhaven (Berry, Bomaderry and Nowra), the Southern Highlands (Bowral, Mittagong and Moss Vale) and Macarthur (Camden, Picton and Narellan).
Driving from our base at Unanderra, Shellharbour is about 20 minutes away, Kiama about 30 and Berry about 45. Nowra is just over an hour, Mittagong and Bowral are about an hour, Picton is about 45 minutes and Camden just under an hour.
Outside the Illawarra we travel to the job from Wollongong. Every job starts with a site visit and a fixed-price proposal covering design, approval and build, the same as for a job in Wollongong.
What Ovas Build takes on as a Wollongong builder
Ovas Build is a licensed residential builder based in Wollongong, with more than ten years in residential construction and work across the Illawarra, Kiama, the northern Shoalhaven, the Southern Highlands and Macarthur. Granny flats, renovations and extensions are the bulk of it, plus new homes, knockdown rebuilds, duplex and dual occupancy work, and the decking, carpentry and joinery that go with them.
Residential is the deliberate limit. We don't take on commercial fitouts or office work, and structural steel decking and formwork for suspended slabs is a different trade that we don't touch either. Being clear about that up front saves everyone a site visit.
You deal with the same team from the first visit to handover, and the approvals and engineering are handled as part of the job rather than left with you.
Thinking about a granny flat, reno or extension?
Tell us about the project and we'll come out, talk through your options and put together a fixed proposal. No pressure, no obligation.