Bayside Council
Private building certifier in Bardwell Valley
Bardwell Valley’s Hamilton and Lansdowne Street bungalows now sit in a conservation area. Any private certifier in Bardwell Valley checks that mapping first, along with the semi next door if your home is one of a pair.
NSW 2207
Class 1 homes and Class 10 structures
Local rules
Bungalows, semis and the Lansdowne Estate
Houses and paired homes
Census figures for 2021 show 2,344 residents and 855 private dwellings across the Bardwell Valley locality. Looking at occupied homes, 65.6% (about two thirds) were stand-alone houses, while semis, terraces and townhouses together came to 27.0%. Flats were just 6.4%.
The conservation area
Since June 2024, a conservation area chapter in Bayside's development control plan (DCP) has covered a group of homes on Hamilton and Lansdowne Streets. Their origin is the Lansdowne Estate, subdivided in 1920. Most homes date from 1920 to 1925, and many have double-gabled roofs that step down the slope. Gardens, wide streets, low front fences and even setbacks are part of the character. Advice given before mid 2024 may not reflect these controls.
The wider suburb
Outside that group, the Bayside Local Environmental Plan 2021 and the DCP chapters on semis and low-density housing guide most work. Creek and landscape settings mean flood and bushfire maps should be checked lot by lot, without assuming a suburb-wide rule.
Typical work
Common projects and how they get approved
What owners build here
- Rear additions. In the conservation area, a modest single storey addition behind the original bungalow is the natural brief. Keep the front roof and porch.
- Upper floors on semis. Council's semi controls want upper additions set back behind the main ridge or peak of the front roof, and designed with the other half in view. A rise that suits one half alone can unbalance the pair.
- Roof repairs. Hipped and gabled forms should stay. Include chimneys and original windows in the scope.
- Pools, garages and outdoor roofs. These can suit some lots once access, planting and eligibility are confirmed.
How approval usually works
Exempt works need no approval. A complying development certificate (CDC) is the quicker path, and a certifier can grant one only when every code standard is met. Otherwise Bayside Council decides a development application (DA), and a construction certificate comes next.
Inside the conservation area, changes to roofs or the street front usually point to a DA. The controls say open verandahs and porches should not be filled in. They prefer additions that are one storey with hipped roofs, and want any part rising over the roof set well back. Away from the mapped group, some rear additions could qualify for a CDC.
Send photos of the front, the roof and any shared wall, plus your survey. CertifiBuild then confirms the mapping and how the controls shape your plans.
Our services
From approval to sign-off.
One certifier for your whole Bardwell Valley job, from the first plan check to the occupation certificate.
Local questions
Questions we hear about this suburb.
No two lots in Bardwell Valley are the same. Give us your address and we will check every map that affects it.
See the council pageAm I allowed to enclose my Bardwell Valley bungalow’s front porch?
Probably not, if your bungalow belongs to the protected group on Hamilton or Lansdowne Street. Since June 2024, Bayside’s controls for that group say existing verandahs and porches should stay open rather than be filled in. The open porch is part of what gives these 1920s Lansdowne Estate homes their street character, along with the front roof. So plan the extra room elsewhere, usually as a single storey addition at the back. Outside the mapped group, different rules apply, so check your lot’s status before ruling the idea in or out.
Does the Bardwell Valley conservation area cover every street?
No. The conservation area only takes in a mapped cluster of houses on Hamilton Street and Lansdowne Street, built mostly between 1920 and 1925 on the old Lansdowne Estate. Elsewhere in Bardwell Valley, council’s general chapters for houses and semis guide most work. A separate heritage listing can still apply to an individual property outside the cluster, and the controls only started in June 2024, so older advice may be out of date. Check your exact lot on the current map. Some rear additions away from the group may then suit a fast-track complying development certificate (CDC).
How tall can I go when adding a level to my Bardwell Valley semi?
There is no single number that answers it. Paired homes are common in Bardwell Valley, and council’s semi rules focus on balance between the two halves. Any upper addition should sit behind the main ridge or peak of the front roof and work with the adjoining semi, so the pair still reads as one building. A rise that suits your half alone can throw the whole pair out. Draw both homes, both roofs and the new junction on the plans. If you are in the conservation area, its preference for single storey additions applies as well.
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.