Hornsby Shire Council
Private building certifier in Cheltenham
Cheltenham pairs Federation homes on the flat ridge with mid-century houses tucked into steep, leafy gullies. Each setting raises its own heritage questions before any addition, deck or garage is designed.
NSW 2119
Class 1 homes and Class 10 structures
Local rules
Heritage Precincts That Shape Cheltenham
Railway beginnings
Locals led by William Chorley campaigned for a station, and it opened in 1898. Homes then spread south from Beecroft, and plateau building peaked in the Federation era. The 2021 Census counted 2,166 people in 734 private dwellings. Close to 96% were separate houses. Hornsby Shire takes in nearly all of the locality.
The Plateau precinct
Hornsby's DCP heritage controls aim to keep the plateau's older buildings, from Victorian through to post-war. They favour single-storey scale with hipped or gabled roof forms, and want pitched roofs on garages and carports too. A later build date alone does not justify demolition.
The Gullies precinct
Development in the Gullies began with land releases in 1958, followed by the Gardens Estate a decade later in 1969. Architects designed stepped houses to suit rugged slopes. The DCP says Sydney School homes must be kept rather than knocked down, and it seeks to keep remnant bushland and mature trees. It also limits subdivision to protect the original lot pattern.
Typical work
Common projects and how they get approved
What owners build here
Since nearly every home stands alone, most jobs rework an existing house.
- Rear living additions. Up on the plateau, how the house meets its garden is weighed as heavily as its size.
- Garage replacement and carports. Roof form and street view are key.
- Decks, stairs and lower-level rooms. In the gullies, these must suit the slope and the original design. Enclosing space under a raised house can change how it looks.
- Roof repairs and solar. Panels should be sited to limit street visibility.
Full knockdowns or subdivision are a harder starting point inside a heritage precinct.
How approval usually works
A conservation area location does not block every CDC (a quick approval from a certifier). It turns on what you are building, which code you use, and whether the house is individually listed. Many alterations here still need a DA to Hornsby Shire Council, followed by a CC.
First pin down your precinct and how much your house contributes to it. A contour survey helps show whether an addition will look tall from downhill. Heritage, biodiversity and bushfire status come from current parcel mapping, not from the look of trees or a slope. For solar panels and skylights, show why the chosen spot is the least visible option. Send a contour survey, photos and your planning certificate first. CertifiBuild will help you understand the heritage settings before your designer starts.
Our services
From approval to sign-off.
One certifier for your whole Cheltenham job, from the first plan check to the occupation certificate.
Local questions
Questions we hear about this suburb.
No two lots in Cheltenham are the same. Give us your address and we will check every map that affects it.
See the council pageCould my 1960s Cheltenham house be protected?
It could be. Hornsby’s heritage controls for the Gullies precinct look back to the first land releases of 1958 and to the Gardens Estate a decade on, when architects designed stepped homes to suit the slopes. Council wants Sydney School houses kept rather than knocked down. The Plateau controls also take in post-war homes. So a 1960s Cheltenham house is not automatically too young to matter. Find out who designed it and how much it adds to the precinct before planning a rebuild. Original drawings or council records can help.
Could my Cheltenham plateau house take an upper floor?
Possibly, but it is a hard case to make. Hornsby’s plateau heritage controls favour single-storey scale with hipped or gabled roofs, which suits Cheltenham’s Federation homes. A second level has to show how it sits in the street and how tall it reads from lower ground, not just that it fits under a height limit. A contour survey helps prove this. An addition at the back that leaves the main roof alone is usually easier. Most such jobs go to Hornsby Shire Council as a development application (DA), with a construction certificate after.
Are rooftop solar panels banned in Cheltenham’s conservation area?
No, panels are not banned. Council asks you to place them where people in the street will barely see them and where they avoid harm to original roof materials. If the only workable spot is visible, you can still make a case, as long as you show why no better position exists. Bring a roof plan with the options marked and a note on why you chose the final layout. The same thinking applies to skylights on Cheltenham homes in the plateau and gullies precincts.
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.