Low Density Residential dominant. Median sale $767.5K over the last 24 months. 77% of decided DAs approved.
St Marys 2760 spans 2 councils: Penrith City Council (3,796 lots), Blacktown City Council (6 lots). The dominant council (Penrith City Council) sets the canonical URL for this page.
Need a builder, surveyor or planner near St Marys? See local experts ↓
Zoning
St Marys is dominated by R2 — Low Density 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
St Marys 2760 covers an undefined area within Penrith City Council.
Drill into any lot in St Marys
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
Theoretical capacity if every lot built to its limit: 22,468 dwellings, with 1,832,768 m² of unused GFA across the suburb.
Own a property in St Marys?
Check your lot's exact development potential — height, FSR, granny flat, subdivision, dual-occ.
Constraints & risks
2% of lots carry heritage controls; also: 1.4% of lots intersect a Threatened Ecological Community; 79.0% of lots fall within a flight-noise contour.
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
Home builder · serves St Marys, NSW
3/40 Charles St, St Marys NSW 94158
Market
Sales, rent, and yield data drawn from NSW Property Sales Information and rental bond data over the past 24 months.
DA activity
235 development applications for St Marys addresses were decided by Penrith City Council over the past 24 months. 181 approved — a 77% approval rate. Average processing time: 50 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
38 businesses serving St Marys and nearby.
Home builder
3/40 Charles St, St Marys NSW 94158
Structural engineer
161 Queen St, St Marys NSW 2760
Real estate agency
192 Queen St, St Marys NSW 2760
Mortgage broker
205B Queen St, St Marys NSW 2760
Roofing contractor
80 Monfarville St, St Marys NSW 2760
Real estate agent
1/222 Queen St, St Marys NSW 2760
Run a local business? Get found by property owners researching St Marys.
List your business — freeFAQs
St Marys is dominated by the R2 (Low Density Residential) zone, which covers 1,544 of 3,802 lots (43%). The full mix is: R2 Low Density Residential (43%), R3 Medium Density Residential (32%), E4 General Industrial (9%), R4 High Density Residential (8%), MU1 Mixed Use (8%).
Across St Marys, the average maximum building height is 11.7 m and the average maximum Floor Space Ratio (FSR) is 2.48:1. 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 — 2,986 lots in St Marys 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 St Marys over the past 24 months is $767,500, across 665 sales. Median unimproved land value is $705,000.
Median weekly rent for a house in St Marys is $550. Gross rental yield works out to 3.1%.
Penrith City Council decided 235 development applications for St Marys addresses over the past 24 months, with 181 approved (77% approval rate). Average processing time is 50 days. Processing time depends heavily on application complexity, council backlog, and whether the application requires referral to other agencies.
Across St Marys, 2% with heritage controls, 2.7% bushfire-prone, 0.3% 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.
707 of 3,802 lots in St Marys show identifiable development potential — under-developed for the planning controls, eligible for a granny flat, or capable of subdivision. Average rezoning signal score: 25.1 / 100.
Continue exploring
Compare zoning, development potential, and DA activity across other suburbs in Penrith City Council and nearby postcodes.
Structural engineer · serves St Marys, NSW
161 Queen St, St Marys NSW 2760
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 St Marys.
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 2760 — population, age, household composition, income, tenure.
abs.gov.au
Zoning, height, FSR, and overlays parsed from the Penrith City 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 →