Blue Mountains, Hawkesbury & Lithgow
Private building certifier in the Hawkesbury City Council area
CertifiBuild certifies houses, extensions, sheds and garages across the Hawkesbury. The single most important local issue is flooding. For lots in the Hawkesbury-Nepean flood area, we check the flood category and evacuation route before reviewing plans.
Local plan
Hawkesbury Local Environmental Plan 2012
Bushfire prone land
Most suburbs
Flood planning
Major floodplain
Heritage areas
Most suburbs
Most building activity right now
The 10 busiest suburbs for building work in the Hawkesbury
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.
A floodplain unlike most others
Much of the Hawkesbury lies within the Hawkesbury-Nepean flood area. Several rivers and creeks feed this system, and it drains through narrow gorges downstream. In big floods, water backs up instead of draining away. At Windsor, the extreme flood level sits about nine metres higher than the flood with a 1-in-100 year chance. So a site above the usual flood planning level can still go under in a rare event. That is why flood checks here go further than in most areas.
Getting out safely matters
Because of this, local flood planning looks beyond floor heights. It also considers how residents would get out, and if local roads could cope. Council's flood policy sorts the floodplain into hazard categories. We confirm your category first, then check floor levels and flood-resistant materials against it.
Which rules apply
The Hawkesbury Local Environmental Plan (LEP) 2012 is the council's main planning rulebook. It holds the flood planning rules. The Hawkesbury development control plan (DCP) 2023 adds detailed design rules. Bushfire prone land is also found in almost every suburb. Rural sheds and garages often need both flood and bushfire checks. Both hazards often overlap in places such as Richmond, Windsor and Wisemans Ferry.
CDC or DA?
A complying development certificate (CDC) is a code-based approval a private certifier can issue. A flood control lot does not automatically rule one out. The work has to satisfy the flood standards set out in the applicable code. Your planning certificate records the flood status for your address. The 2021 Census counted 86.8% of homes here as separate houses. As a next step, send us your survey, plans and planning certificate so we can confirm the flood category.
Local know-how
Hawkesbury projects, from river towns to new estates
Windsor and Richmond
Richmond was one of Governor Macquarie's five towns, set out in 1810, and its central park survives from that early plan. Windsor is older again. Thompson Square goes back to the 1790s and is a conservation area on the State list, with its own management plan. Neither listing takes in every house close by, so we check each lot on the map individually.
Housing in these towns is more mixed than many expect. In 2021, nearly 30% of homes in Richmond were townhouses or semi detached houses. Refitting a kitchen or bathroom in one of these may affect fire separation, shared walls or services. We look at the title and approved plans before any wall moves.
Pitt Town and North Richmond
Both suburbs include planned estates with their own council chapters. Pitt Town's chapter flows from a concept approval granted in 2008 and divides the area into precincts, and each precinct has different building envelopes. In North Richmond, the Redbank estate has its own rules for subdivision, water management and the form of buildings. Pools, alfresco areas and flatter backyards are the usual follow up projects. Redbank sets specific rules for stepped retaining walls and fences, so we start by requesting the approved lot levels. What a neighbour built will not reliably show your envelope.
Bligh Park
Bligh Park began in 1985 as a planned estate, developed jointly by council and the state housing department of NSW. Roughly one home in five is a townhouse or semi. A patio roof or room enclosure may belong to a larger approved group, so the original plans are important. An old business precinct chapter for the suburb was repealed in 2013, so current controls are used instead.
Why Hawkesbury owners and builders use CertifiBuild
CertifiBuild knows the Hawkesbury's mix of historic towns, newer estates and rural blocks. Before design begins, we confirm which estate chapter, heritage map and hazard layers affect the lot. Our planning knowledge covers how the council's local plan and the state codes work together here. We respond quickly, keep owners and builders informed, and set inspection dates around your trades. We certify homes and Class 10 work only, from sheds and carports to pools and retaining walls.
Suburbs we cover
All 63 suburbs in Hawkesbury
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.
- Agnes Banks
- Berambing
- Bilpin
- Blaxlands Ridge
- Bligh Park
- Bowen Mountain
- Bucketty
- Cattai
- Central Colo
- Central Macdonald
- Clarendon
- Colo
- Colo Heights
- Cornwallis
- Cumberland Reach
- East Kurrajong
- Ebenezer
- Fernances
- Freemans Reach
- Glossodia
- Grose Vale
- Grose Wold
- Higher Macdonald
- Hobartville
- Kurmond
- Kurrajong
- Kurrajong Heights
- Kurrajong Hills
- Leets Vale
- Lower Macdonald
- Lower Portland
- Maraylya
- McGraths Hill
- Mellong
- Mogo Creek
- Mountain Lagoon
- Mulgrave
- North Richmond
- Oakville
- Perrys Crossing
- Pitt Town
- Pitt Town Bottoms
- Richmond
- Richmond Lowlands
- Sackville
- Scheyville
- South Windsor
- St Albans
- Ten Mile Hollow
- Tennyson
- The Devils Wilderness
- The Slopes
- Upper Colo
- Upper Macdonald
- Vineyard
- Webbs Creek
- Wheeny Creek
- Wilberforce
- Windsor
- Windsor Downs
- Wisemans Ferry
- Wrights Creek
- Yarramundi
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 areasMy Windsor lot is above the flood planning level. Is it safe from flooding?
Not necessarily. Being above the flood planning level does not mean a Windsor lot stays dry in a rare flood. The Hawkesbury-Nepean system drains through narrow gorges, so big floods back up rather than flow away. At Windsor, the extreme flood level is about nine metres above the flood with a 1-in-100 year chance. For that reason, council looks at how residents would get out and whether local roads could cope, not only floor heights. We confirm your lot’s flood hazard category first, then check floor levels and materials against it.
Is a CDC possible on a flood control lot in the Hawkesbury?
Sometimes. Flood control lot status alone does not shut out a complying development certificate (CDC) in the Hawkesbury, though the proposal has to pass the flood requirements of whichever code applies. The planning certificate records the flood status for your address. Since large parts of the city lie in the Hawkesbury-Nepean flood area, we also look up the hazard category under council’s flood policy. Where the design cannot meet those requirements, a development application (DA) to council is the alternative. Send us the planning certificate early so the pathway is clear before drawings.
What needs checking before a farm shed goes up near Wisemans Ferry?
Start with the flood and bushfire maps, because both hazards are common around Wisemans Ferry and often overlap on the same rural lot. The flood check confirms the hazard category under council’s flood policy, which affects floor levels and flood-resistant materials. Nearly all Hawkesbury suburbs also contain bushfire prone land, and on mapped land a bushfire attack level (BAL) assessment then tells you how the shed has to be built. Once both are known, we confirm whether the shed qualifies for a complying development certificate (CDC) or needs a development application (DA). Have your survey and planning certificate ready.
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.