Blue Mountains City Council
Private building certifier in Megalong Valley
Megalong Valley is rural land split between two councils. As a private certifier here, we first confirm which council covers your lot, then checks access, water, wastewater and bushfire before design starts.
NSW 2785
Class 1 homes and Class 10 structures
Local rules
Megalong Valley: rural lots, two councils
Settlement and people
Council history notes the valley was surveyed in 1838. A road built in 1897 tied it more closely to Blackheath. None of that shows a lot has legal access now. In 2021, the whole locality had 148 residents, living in 79 private dwellings. All occupied homes were stand-alone houses.
Two councils, one locality
Most of the valley is Blue Mountains land, and Lithgow City Council covers a smaller section. Your exact address and lot decide which council's plan applies. For Blue Mountains land, council's 2015 local plan and its DCP set the rules. On the Lithgow side, Lithgow's own planning controls apply. The Census counts both parts as one.
Rural constraints
Look first at the zone and the smallest lot size allowed, then the biodiversity, watercourse and bushfire maps. A cleared paddock does not make an approved house site. Show the house with its access, drainage and services so the whole proposal is assessed together.
Typical work
Common projects and how they get approved
What owners build here
Common Class 1 and 10 projects in the valley:
- Rural home additions and renovations. Confirm the existing house was approved, then plan around the septic or other wastewater system.
- Sheds and farm buildings. A storage shed and a habitable room look alike but are very different approvals.
- Shed to accommodation conversions. Approval for a shed never covers living in it. Fire safety, energy rating and services all need work.
- Replacement homes. Access, water supply and earthworks must be shown with the house.
- Garages and carports. Long driveways and cut and fill can add to the approval scope.
For visitor accommodation and farm stays, recheck what the zone permits and what existing approvals cover.
How approval usually works
Some farm sheds and small structures may be exempt. Some rural lots can use a CDC, which a certifier issues quickly when the state codes are met. Many valley projects instead need a development application (DA) to the relevant council, then a construction certificate (CC). Higher bushfire ratings, environmental mapping and wastewater approvals often push a job to a DA. A large block and a rural address do not, on their own, permit a house. If the house will rely on a septic or similar treatment system, council usually has to approve it as a separate step, so build that time into your plans. Bushfire assessments should look at the whole footprint, including clearing for access and service lines, before the house position is fixed. Send the title, lot details and any old approvals first. CertifiBuild will help confirm the council, the controls and a workable path forward.
Our services
From approval to sign-off.
One certifier for your whole Megalong Valley job, from the first plan check to the occupation certificate.
Local questions
Questions we hear about this suburb.
No two lots in Megalong Valley are the same. Give us your address and we will check every map that affects it.
See the council pageWhich council assesses my Megalong Valley project?
Blue Mountains council looks after most of Megalong Valley, and Lithgow City Council covers a smaller section. Your lot details, rather than the postal address, decide which one assesses your project. Check your lot details against current boundary maps first. Where Blue Mountains is responsible, the council’s 2015 local plan and its development control plan (DCP) set the rules, while Lithgow land follows Lithgow’s own controls. Each council also has its own lodgement requirements. Send your title and any old approvals, and we can help confirm the council before design starts.
Does a big Megalong Valley block automatically allow a house?
No. Land area alone gives no permission to build, and a cleared paddock does not make an approved house site. Start by checking the zone, the smallest lot size allowed, the permitted uses and anything on the title that restricts use. Then look at the biodiversity, watercourse and bushfire maps. Access, water supply, wastewater and earthworks belong on the same drawings as the house, so everything is assessed as one proposal. Many valley projects need a development application (DA). Confirm that a dwelling is allowed before paying for full construction drawings.
When should I sort out wastewater for a Megalong Valley home?
Early, while the house position can still move. If your home will rely on a septic or similar on-site system, its location affects usable area, setbacks and where the house can sit. Get a site assessment, find out which council approval is needed, and design the system into the plans from the start. Council usually approves it as a separate step, so allow for that in your timing. Bushfire assessment should consider clearing for service lines too, so settle wastewater and bushfire together before locking in where the house goes.
Building in this suburb?
Send us the address first.
We check the local maps for your lot, confirm the approval path and quote in writing.