Illawarra & Southern Highlands
Private building certifier in the Wollongong City Council area
Across Wollongong, CertifiBuild certifies new homes, additions, garages and pools. For lots near the Illawarra Escarpment, slope stability is the key local issue. A geotechnical report is expected for most work there, so it should be sorted before design.
Local plan
Wollongong Local Environmental Plan 2009
Bushfire prone land
Most suburbs
Flood planning
Council mapping
Heritage areas
Most suburbs
Most building activity right now
The 10 busiest suburbs for building work in Wollongong
Ranked by ABS building approvals for new homes, duplexes, townhouses and renovations over the 12 months to August 2026. Choose a suburb for its local guide.
Local rules
What shapes approvals here.
The escarpment belt
Wollongong occupies a thin coastal strip beneath the Illawarra Escarpment. An escarpment area is set out in the Wollongong development control plan (DCP) 2009. A DCP holds the council's detailed building rules. It begins at the 50 metre contour and runs 150 metres past where the escarpment tops out. Inside it, a geotechnical report on slope stability is required for most development. A geotechnical engineer prepares this report.
Why order matters
Slope questions are a common reason applications get held up. Getting the report early gives your designer clear limits to work within. It is much harder to fix a design after it has been drawn. For lots in Thirroul, Austinmer, Mount Keira and similar places, we check whether the belt applies.
New homes in West Dapto
West Dapto is a large new release area, with about 19,500 homes planned. The DCP gives it a dedicated chapter. That 2009 DCP also applies across the remainder of the city. The Wollongong Local Environmental Plan (LEP) 2009 is the main planning rulebook across the whole city. A new house in those areas may suit a complying development certificate (CDC) where it complies with the code.
Bushfire and approvals
Almost every suburb includes some bushfire prone land. On mapped lots, a bushfire attack level (BAL) assessment decides how the home must be built. At a rating of Flame Zone or BAL-40, home building work usually needs a development application (DA) lodged with council. On escarpment lots, the bushfire and geotechnical checks run side by side. The 2021 Census counted 68.4% of homes here as separate houses. To get going, send us your survey, plans and planning certificate so we can check slope and bushfire first.
Local know-how
Wollongong's suburbs and the questions they raise
Thirroul and Corrimal
Both suburbs have streets of interwar bungalows near a railway centre. Thirroul has its own village chapter in the DCP, covering built form, views and buildings that add to local character. A bungalow can add to that character without being heritage listed. These checks are separate, and between them they set the approval route when you add a rear extension or a new upper level.
Corrimal has more shared housing, with townhouses and flats making up about 40% of homes in 2021. A dedicated DCP chapter covers the old Corrimal Coke Works site, yet the surrounding houses fall outside it.
Helensburgh
Helensburgh sits on a plateau, ringed by protected bushland. Timber and fibro houses from earlier decades sit next to later brick homes. A full second storey on a timber or fibro cottage needs the existing structure checked first. For lots near bushland, we use the bushfire map for that address rather than a town wide assumption. Its village centre has a country town feel, quite unlike the coastal villages below. Typical jobs include extending at the rear, altering a garage or a knockdown rebuild.
Dapto and Figtree
Dapto's original railway town is outside the area set aside for the West Dapto release. Its chapter on the release area covers only the land inside its boundary, not every Dapto address. Many homes in Dapto are brick, weatherboard or fibro and have been extended over the years. A garage long used as a room is not approved living space unless the records show it. Figtree combines older weatherboard houses with bigger brick and tile homes on sloping land to the west, where retaining and drainage should be planned from day one.
Why Wollongong owners and builders use CertifiBuild
CertifiBuild knows how Wollongong's DCP shifts between village chapters, release areas and the escarpment. We work out which chapters and maps affect each lot right at the start, so design begins from known limits. We know how council's controls work alongside the state codes for houses, granny flats and outbuildings. Messages are answered promptly, and inspections are fitted to your builder's timetable. Homes and Class 10 structures are all we certify.
Suburbs we cover
All 68 suburbs in Wollongong
We certify homes and Class 10 structures in every suburb listed. Some suburbs cross council boundaries, so we always confirm the council on your planning certificate.
- Austinmer
- Avondale
- Balgownie
- Bellambi
- Berkeley
- Brownsville
- Bulli
- Cataract
- Cleveland
- Clifton
- Coalcliff
- Coledale
- Coniston
- Cordeaux
- Cordeaux Heights
- Corrimal
- Cringila
- Dapto
- Darkes Forest
- Dombarton
- East Corrimal
- Fairy Meadow
- Farmborough Heights
- Fernhill
- Figtree
- Gwynneville
- Haywards Bay
- Helensburgh
- Horsley
- Huntley
- Kanahooka
- Keiraville
- Kembla Grange
- Kembla Heights
- Koonawarra
- Lake Heights
- Lilyvale
- Maddens Plains
- Mangerton
- Marshall Mount
- Mount Keira
- Mount Kembla
- Mount Ousley
- Mount Pleasant
- Mount Saint Thomas
- North Wollongong
- Otford
- Port Kembla
- Primbee
- Russell Vale
- Scarborough
- Spring Hill
- Stanwell Park
- Stanwell Tops
- Stream Hill
- Tarrawanna
- Thirroul
- Towradgi
- Unanderra
- Warrawong
- West Wollongong
- Windang
- Wollongong
- Wombarra
- Wongawilli
- Woonona
- Woronora Dam
- Yallah
Nearby council areas
Neighbouring councils we cover.
Building near a council boundary, or planning another project close by? Each neighbouring council page explains its own local rules.
Our services
From approval to sign-off.
One certifier for the whole job, whichever council your lot is in.
Local questions
Questions we hear in this area.
No two lots are alike. Share your address and we will review the maps that cover it.
All council areasWill my Austinmer extension need a geotechnical report?
Most likely, if your Austinmer lot falls within the escarpment belt. The Wollongong development control plan (DCP) 2009 defines this area as beginning at the 50 metre height contour and extending 150 metres beyond the escarpment’s crest. Inside the belt, a slope stability report by a geotechnical engineer is needed for most work. Slope questions often hold up applications, so commission the report before design, giving your designer firm limits. We confirm where your lot sits early, while the extension plans can still change.
Can a new home in West Dapto use a CDC?
Yes, a new West Dapto home can use a complying development certificate (CDC) when it complies with the code, provided the planning certificate lists no exclusion. West Dapto is a large release area planned for about 19,500 homes. The Wollongong development control plan (DCP) 2009 gives it a dedicated chapter, which covers only land inside the release boundary, not Dapto’s original railway town. Bushfire mapping can still affect some lots. Send us the planning certificate and site plan, and we can confirm whether the code route is open.
Is bushfire a concern for homes in Wombarra and the northern suburbs?
Often, yes. Wombarra and the neighbouring northern suburbs have many homes set in forested foothills, and nearly all Wollongong suburbs contain some bushfire prone land. On mapped land, a bushfire attack level (BAL) assessment determines how the home has to be built. The top two ratings, Flame Zone and BAL-40, usually mean a development application (DA) to council instead of the code-based path. If the lot also lies in the escarpment area, bushfire and geotechnical checks run side by side. Look up the bushfire map for your exact address before design begins.
Building in this area?
Send us the address first.
We check the local maps for your lot, confirm the approval path and quote in writing.