City of Canada Bay
Private building certifier in Mortlake
Mortlake is mainly apartments, with a small group of old workers cottages and a precinct where homes sit beside businesses. We help owners of houses and townhouses get their projects approved and certified.
NSW 2137
Class 1 homes and Class 10 structures
Local rules
Building beside Mortlake's industrial past
An apartment suburb
In the 2021 Census Mortlake had 1,954 residents in 1,020 private dwellings. Apartments and flats made up 79.3% of the occupied homes. Semis, terraces and townhouses were 14.4%, and separate houses only 5.6%. So Class 1 work here is mostly on attached homes and a few cottages, often on small sites with neighbours close by.
Cottages from the gasworks era
Council's development control plan (DCP) lists a Workers' Housing Group in its heritage appendix. These cottages, from the late Victorian and Federation years, grew up with the AGL gasworks township. Their fronts are small in scale, with mixed materials. An old appearance does not put a house in the group; only the heritage map does.
Homes next to business at Mortlake Point
Mortlake Point gets a dedicated DCP chapter on homes and businesses operating next to each other. It works both ways. New housing must cope with lawful businesses already there, and new business must protect nearby homes. Layout, buffers, windows, plant and servicing all come into it. The Canada Bay Local Environmental Plan 2013 sets the zoning. Existing consents and current uses next door also shape what you can propose.
Typical work
Common projects and how they get approved
What owners build here
Typical Class 1 and 10 projects in Mortlake:
- Cottage rear additions. In the heritage group, keep the small front form and put new space behind it.
- Townhouse and terrace changes. Track down the approved plans and any common services before you shift walls, kitchens or bathrooms. Check fire separation between units as well.
- New windows, decks and openings. Near a working business, plan for noise and air quality from the start.
Business fitouts and apartment work are other building classes. A certifier licensed for that work has to handle them.
How approval usually works
Small jobs that satisfy every standard can be exempt. Most other work needs either a CDC, issued promptly by a certifier against a State code, or a development application (DA) to council and then a construction certificate. If your lot is heritage listed or part of a conservation group, a CDC may be blocked. Inside Mortlake Point, a DA may have to show how noise, airflow and screening work together, rather than leaning on a boundary wall alone. Send us the approved plans, your title and a survey first. Our certifiers can then map out the route and see the job through its inspections.
Our services
From approval to sign-off.
One certifier for your whole Mortlake job, from the first plan check to the occupation certificate.
Local questions
Questions we hear about this suburb.
No two lots in Mortlake are the same. Give us your address and we will check every map that affects it.
See the council pageDoes the gasworks history make my Mortlake cottage heritage listed?
Not automatically. Council’s development control plan (DCP) identifies a heritage cluster called the Workers’ Housing Group: cottages from the late Victorian and Federation years that grew up with the AGL gasworks township. Only homes shown on the heritage map belong to it, so an old look alone does not place your cottage in it, and apartment blocks sit outside it. Check your address on the latest heritage map and listings before planning a renovation. If you are inside, keep the small front form, put new space behind it, and note that a complying development certificate (CDC) may be blocked.
Why does a deck near a Mortlake Point business need extra thought?
Because the development control plan gives Mortlake Point its own chapter on homes and businesses sitting side by side, and it works in both directions. New housing work must cope with lawful businesses already operating, just as new business must protect nearby homes. A deck or new opening close to plant, loading areas or late-night activity may need sound and airflow measures planned from the start. Layout, buffers, screening and window placement all play a part, and a boundary wall alone rarely solves it. Check existing consents and current uses next door before you design.
Can I move a window in my Mortlake townhouse without approval?
It depends. A new or relocated window can change the approved facade, the fire separation between units or the acoustic treatment, particularly near business uses at Mortlake Point. In a terrace or townhouse, neighbours sit close and shared pipes or wiring can run through the wall you want to open. Look up the existing approval and approved plans for your home first, and do not assume it counts as minor interior work. Some small jobs are exempt if they meet every standard. If not, the job needs a complying development certificate (CDC) or council approval.
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.