General Residential dominant. Median sale $835K over the last 24 months. 85% of decided DAs approved.
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Zoning
Mortlake is dominated by R1 — General Residential. Land use rules, height, FSR, and permitted developments are set per zone in the Local Environmental Plan and refined by the Development Control Plan.
Limit varies by lot — check your address for the exact figure.
Floor Space Ratio — total floor area as a multiple of lot area.
Location
Mortlake 2137 covers an undefined area within City of Canada Bay Council.
Drill into any lot in Mortlake
Open the interactive map — click any address to see its zone, height, FSR, overlays, and approval likelihood.
Development potential
We score every lot for development signal — under-built relative to the controls, eligible for a granny flat, or sized for subdivision.
lots with remaining GFA capacity
under SEPP (Housing) 2021
lots that may support subdivision
adjoining lots with combined upside
show at least one development signal
average uplift signal across the suburb · 6 high-signal lots
Theoretical capacity if every lot built to its limit: 1,611 dwellings, with 42,612 m² of unused GFA across the suburb.
Own a property in Mortlake?
Check your lot's exact development potential — height, FSR, granny flat, subdivision, dual-occ.
Constraints & risks
4% of lots carry heritage controls; also: 2.1% of lots are within 100m of a recorded contaminated site; 0.4% of lots are exposed to projected sea-level rise.
Suburb-wide percentages — your specific lot may have all, some, or none of these.
Mapped flood-prone land
RFS bushfire-prone land mapping
Heritage item or Conservation Area
Within 100 m of EPA-listed site
Mapped TEC vegetation
Coastal hazard mapping
ANEF / aircraft noise
HVAC contractor · serves Mortlake, NSW
13-15 McDonald St, Mortlake NSW 2137
Market
Sales, rent, and yield data drawn from NSW Property Sales Information and rental bond data over the past 24 months.
DA activity
20 development applications for Mortlake addresses were decided by City of Canada Bay Council over the past 24 months. 17 approved — a 85% approval rate. Average processing time: 56 days.
Demographics & lifestyle
ABS Census 2021 population data combined with lot-level amenity, healthcare, lifestyle, and crime indices.
Walkable amenity within 1 km
GP / hospital / pharmacy proximity
Cafés, parks, schools, transport
ZoneDSS Marketplace
12 businesses serving Mortlake and nearby.
HVAC contractor
13-15 McDonald St, Mortlake NSW 2137
Architect
Unit 17/86/88 Tennyson Rd, Mortlake NSW 2137
House cleaning service
Unit 21/10 Emily St, Mortlake NSW 2137
Cleaning service
3/2 Bennett St, Mortlake NSW 2137
Landscaper
Unit 508/10 Hilly St, Mortlake NSW 2137
Engineering consultant
9 Edwin St, Mortlake NSW 2137
Run a local business? Get found by property owners researching Mortlake.
List your business — freeFAQs
Mortlake is dominated by the R1 (General Residential) zone, which covers 216 of 238 lots (91%). The full mix is: R1 General Residential (91%), E1 Local Centre (6%), RE1 Public Recreation (2%), C2 Centre Support (1%).
Across Mortlake, the average maximum building height is 12.0 m and the average maximum Floor Space Ratio (FSR) is 0.75:1. Individual lots can vary materially — height and FSR are set per zone in the Local Environmental Plan (LEP) and can be modified by overlays. For an exact figure on a specific address, generate a planning report.
Yes — 124 lots in Mortlake appear eligible for a granny flat under SEPP (Housing) 2021, based on lot size, zoning, and frontage. Eligibility is lot-specific: get a planning report on your address to confirm.
The median sale price in Mortlake over the past 24 months is $835,000, across 155 sales. Median unimproved land value is $1,690,000.
Median weekly rent for a house in Mortlake is $820. Gross rental yield works out to 5.1%.
City of Canada Bay Council decided 20 development applications for Mortlake addresses over the past 24 months, with 17 approved (85% approval rate). Average processing time is 56 days. Processing time depends heavily on application complexity, council backlog, and whether the application requires referral to other agencies.
Across Mortlake, 4% with heritage controls, 2.1% near contaminated sites. These are suburb-wide percentages — every lot has its own combination. A planning report on a specific address shows exactly which controls apply.
222 of 238 lots in Mortlake show identifiable development potential — under-developed for the planning controls, eligible for a granny flat, or capable of subdivision. Average rezoning signal score: 36.8 / 100.
Continue exploring
Compare zoning, development potential, and DA activity across other suburbs in City of Canada Bay Council and nearby postcodes.
Architect · serves Mortlake, NSW
Unit 17/86/88 Tennyson Rd, Mortlake NSW 2137
Suburb-wide stats are useful for context. For a buy-or-walk decision on a specific lot, you need every control, every constraint, and every clause cited to source.
Run a report — from A$2914-section report · LEP + SEPP + DCP cross-referenced · cited to source
Verify with official sources
Don't take our word for it. Every figure on this page is computed from authoritative New South Wales Government data — and you can verify any of it directly with the source.
Official zoning, height, FSR, and overlay maps for any NSW address. The primary source for everything on this page.
planningportal.nsw.gov.au
Cadastral lot boundaries, aerial imagery, easements, and environmental overlays from NSW Spatial Services.
maps.six.nsw.gov.au
State-listed heritage items and Heritage Conservation Areas. Search by suburb to see what's listed in Mortlake.
hms.heritage.nsw.gov.au
Sites notified to the EPA under the Contaminated Land Management Act. Critical for due diligence on any address.
apps.epa.nsw.gov.au
Rural Fire Service map of bushfire-prone land categories. Triggers BAL assessment requirements for new builds.
rfs.nsw.gov.au
Australian Bureau of Statistics QuickStats for postcode 2137 — population, age, household composition, income, tenure.
abs.gov.au
Zoning, height, FSR, and overlays parsed from the City of Canada Bay Council Local Environmental Plan, applicable State Environmental Planning Policies, and the Development Control Plan. Property sales drawn from NSW Property Sales Information. DA history aggregated from the NSW Planning Portal. Heritage, flood, bushfire, contaminated land, TEC, sea-level rise, and aircraft noise overlays from the NSW Spatial Services and EPA registers. Population, age, income, and tenure from ABS Census 2021. Aggregated by ZoneDSS · last updated 2026-04-27.
Suburb-wide statistics — your specific lot may vary. Always run a planning report on the actual address before making a decision. How ZoneDSS works →