Elvina Bay flood map & planning overlays
A planning-constraint profile of Elvina Bay
(Northern Beaches, NSW) - 0.16 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
0.16 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Elvina Bay's boundary, with the flood, bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Elvina Bay
Two different things, kept apart on purpose. The ANEF contour is the planning instrument - a forecast published per airport that planning schemes use to control noise-sensitive development. Observed overflight is what a sampled aircraft-tracking feed actually recorded over the suburb - where aircraft flew, how low and how often.
Observed overflight - sampled 4 Sep to 2 Oct 2026
typical observed square 1 a day
Night movements: not established - night is sampled as often as day, but too few night flights have been seen here to conclude either way.
Traffic is sampled rather than watched continuously, so every figure is a floor: aircraft not captured between samples are not represented. Rates are per 500 m square - the busiest square in the suburb, not a count of flights over the suburb - and a square is only rated where enough traffic was seen to measure it. Altitudes are above mean sea level. Flight paths change with runway use, weather, season and airspace design. This is a record of observed traffic; it is not a noise contour and not a planning control.
Elvina Bay at a glance
How Elvina Bay is zoned
Buying in Elvina Bay? The zoning, flood and bushfire lines on the section 10.7 certificate attached to the contract are mapped controls - see our s10.7 certificate guide.
Across its 0.16 km², Elvina Bay is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 5 heritage-listed sites on record, and the dominant land-use zone is Environmental Management. The median lot measures about 1,027 m² across 97 parcels.
Who lives in Elvina Bay
Census 2021 figures published by the ABS for the Elvina Bay suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 1111, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Elvina Bay's 80 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Bayview - Elanora Heights, the wider ABS statistical area containing Elvina Bay. There is no annual population series published at suburb level, so this describes the surrounding area rather than Elvina Bay itself.
10,768 in 2001 to 11,426 in 2025, up 6%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Elvina Bay data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Bushfire-prone mapping | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Zoning | Mapped | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Heritage and environment | Mapped where published | NSW Government spatial services, NSW ePlanning and published council flood studies |
| Aircraft noise contours (ANEF) | Not held | NSW Government spatial services, NSW ePlanning and published council flood studies, Defence |
| Observed flight paths | Observed | adsb.lol, under the Open Database License |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 3 October 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Elvina Bay address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
Aircraft have been seen below 3,000 ft over about 30% of Elvina Bay. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Published flood models are held over parts of Elvina Bay. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Elvina Bay lot.
See what's in the $9 report →Elvina Bay planning - frequently asked
Is Elvina Bay flood-prone?
Flood mapping covers Elvina Bay and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 12%). Published flood models are held over parts of Elvina Bay; the free check on the Flood Model Report page says whether one reaches a given address.
Is Elvina Bay bushfire-prone?
Around 100% of Elvina Bay is mapped as bushfire-prone, compared with a Northern Beaches average of 47%.
Is Elvina Bay under a flight path?
Aircraft were observed below 3,000 ft over about 30% of Elvina Bay, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 2,000 ft. At the busiest point in the suburb about 1 aircraft a day were recorded passing over one 500 m square. Traffic is sampled rather than watched continuously and flight paths change with runway use, weather and season; the ANEF contour is the planning instrument.
What is the zoning in Elvina Bay?
The dominant planning zone in Elvina Bay is Environmental Management, though the suburb also includes Environmental Conservation and National Parks and Nature Reserves.
Does Elvina Bay have heritage-listed places?
Elvina Bay has 5 heritage-listed places on record.
What is the typical lot size in Elvina Bay?
Across 97 surveyed parcels in Elvina Bay, the median lot size is about 1,027 m².
Does Elvina Bay have a train station?
There is no train station inside Elvina Bay itself. The suburb is served by 2 ferry terminals.
What is the population of Elvina Bay?
At the 2021 Census Elvina Bay had 80 usual residents, with a median age of 50 and an average household size of 2.2 people. The wider Bayview - Elanora Heights statistical area, which contains Elvina Bay, went from 10,768 people in 2001 to 11,426 in 2025, up 6%.
Is Elvina Bay an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Elvina Bay scores 1111 and sits in decile 10 of 10 nationally and decile 10 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Elvina Bay?
Median household income in Elvina Bay was $1,958 a week at the 2021 Census, against $2,778 for the typical suburb in Northern Beaches. Median rent was $500 a week and the median mortgage repayment $2,400 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Mccarrs Creek | 0.5 km | 0% | 100% |
| Lovett Bay | 0.9 km | 0% | 100% |
| Scotland Island | 1.4 km | <1% | 100% |
| Morning Bay | 1.7 km | Not mapped | 100% |
| Church Point | 1.8 km | 3% | 54% |
| Bayview | 2.6 km | 13% | 44% |
| Pittwater | 2.8 km | <1% | 12% |
| Clareville | 3.1 km | 4% | 5% |
| Bilgola Plateau | 3.4 km | 2% | 21% |
| Newport | 4.2 km | 11% | 12% |