Primary Production Small Lots dominant. Median sale $9.5M over the last 24 months. 90% of decided DAs approved.
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Zoning
Duffys Forest is dominated by RU4 — Primary Production Small Lots. 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
Duffys Forest 2084 covers an undefined area within Northern Beaches Council.
Drill into any lot in Duffys Forest
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.
under SEPP (Housing) 2021
lots that may support subdivision
show at least one development signal
average uplift signal across the suburb
Own a property in Duffys Forest?
Check your lot's exact development potential — height, FSR, granny flat, subdivision, dual-occ.
Constraints & risks
78% of lots are bushfire-prone — a bushfire assessment is likely required; also: 1% of lots carry heritage controls; 16.3% of lots intersect a Threatened Ecological Community.
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
Market
Sales, rent, and yield data drawn from NSW Property Sales Information and rental bond data over the past 24 months.
DA activity
19 development applications for Duffys Forest addresses were decided by Northern Beaches Council over the past 24 months. 17 approved — a 90% approval rate. Average processing time: 53 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
0 businesses serving Duffys Forest and nearby.
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Duffys Forest is dominated by the RU4 (Primary Production Small Lots) zone, which covers 177 of 184 lots (96%). The full mix is: RU4 Primary Production Small Lots (96%), RE1 Public Recreation (3%), C1 Local Centre (1%).
Across Duffys Forest, the average maximum building height is 8.0 m. Height is set per zone in the Local Environmental Plan (LEP) and can be varied by overlays and schedules. For the exact control on a specific address, generate a planning report.
Most lots in Duffys Forest aren't eligible for a granny flat under SEPP (Housing) 2021 — typically because the dominant zoning (RU4) doesn't permit it, or lot sizes fall below the minimum. Always verify on the specific address.
The median sale price in Duffys Forest over the past 24 months is $9,500,000, across 8 sales. Median unimproved land value is $5,470,000.
Median weekly rent for a house in Duffys Forest is $1,250. Gross rental yield works out to 0.7%.
Northern Beaches Council decided 19 development applications for Duffys Forest addresses over the past 24 months, with 17 approved (90% approval rate). Average processing time is 53 days. Processing time depends heavily on application complexity, council backlog, and whether the application requires referral to other agencies.
Across Duffys Forest, 1% with heritage controls, 77.7% bushfire-prone. These are suburb-wide percentages — every lot has its own combination. A planning report on a specific address shows exactly which controls apply.
0 of 184 lots in Duffys Forest show identifiable development potential — under-developed for the planning controls, eligible for a granny flat, or capable of subdivision. Average rezoning signal score: 3.9 / 100.
Continue exploring
Compare zoning, development potential, and DA activity across other suburbs in Northern Beaches Council and nearby postcodes.
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 Duffys Forest.
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 2084 — population, age, household composition, income, tenure.
abs.gov.au
Zoning, height, FSR, and overlays parsed from the Northern Beaches 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 →