Lilli Pilli flood map & planning overlays
A planning-constraint profile of Lilli Pilli
(Sutherland Shire, NSW) - 1.49 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
1.49 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Lilli Pilli'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 Lilli Pilli
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: observed, lowest 1,000 ft - night is sampled as often as day, but night traffic is light, so this is a floor and no rate can be put on it.
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.
Lilli Pilli at a glance
How Lilli Pilli is zoned
Buying in Lilli Pilli? 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 1.49 km², Lilli Pilli is highly constrained by planning overlays. About 59% of the suburb sits within a mapped flood overlay. There are 12 heritage-listed sites on record, and the dominant land-use zone is Natural Waterways. The median lot measures about 810 m² across 493 parcels.
Who lives in Lilli Pilli
Census 2021 figures published by the ABS for the Lilli Pilli 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 1167, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Lilli Pilli's 1,405 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Lilli Pilli - Port Hacking - Dolans Bay, the wider ABS statistical area containing Lilli Pilli. There is no annual population series published at suburb level, so this describes the surrounding area rather than Lilli Pilli itself.
3,253 in 2001 to 3,437 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.
Lilli Pilli 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 Lilli Pilli 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 25% of Lilli Pilli. The report's Aircraft Overflight page narrows that to the address itself: how many aircraft a day, how low, and at what heights.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Lilli Pilli lot.
See what's in the $9 report →Lilli Pilli planning - frequently asked
Is Lilli Pilli flood-prone?
About 59% of Lilli Pilli falls within a mapped flood overlay, against the council-wide suburb average of 22%.
Is Lilli Pilli bushfire-prone?
Bushfire mapping covers Lilli Pilli and little to none of it is mapped as bushfire-prone (the Sutherland Shire average is 46%).
Is Lilli Pilli under a flight path?
Aircraft were observed below 3,000 ft over about 25% of Lilli Pilli, and over about 82% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 4,500 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 Lilli Pilli?
The dominant planning zone in Lilli Pilli is Natural Waterways, though the suburb also includes Environmental Management and Public Recreation.
Does Lilli Pilli have heritage-listed places?
Lilli Pilli has 12 heritage-listed places on record.
What is the typical lot size in Lilli Pilli?
Across 493 surveyed parcels in Lilli Pilli, the median lot size is about 810 m². There are also 17 registered easements mapped in the suburb.
Does Lilli Pilli have a train station?
There is no train station inside Lilli Pilli itself. The suburb is served by 22 bus stops.
What is the population of Lilli Pilli?
At the 2021 Census Lilli Pilli had 1,405 usual residents, with a median age of 44 and an average household size of 3.2 people. The wider Lilli Pilli - Port Hacking - Dolans Bay statistical area, which contains Lilli Pilli, went from 3,253 people in 2001 to 3,437 in 2025, up 6%.
Is Lilli Pilli an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Lilli Pilli scores 1167 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 Lilli Pilli?
Median household income in Lilli Pilli was $3,625 a week at the 2021 Census, against $2,626 for the typical suburb in Sutherland Shire. Median rent was $900 a week and the median mortgage repayment $4,000 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Port Hacking | 1.1 km | 53% | 0% |
| Dolans Bay | 1.4 km | 29% | 0% |
| Maianbar | 1.7 km | 56% | 36% |
| Caringbah South | 1.8 km | 22% | 1% |
| Yowie Bay | 2.2 km | 37% | 2% |
| Bonnie Vale | 2.4 km | 12% | 86% |
| Burraneer | 2.4 km | 46% | 2% |
| Gymea Bay | 3.2 km | 17% | 13% |
| Warumbul | 3.3 km | 14% | 93% |
| Grays Point | 3.6 km | 30% | 26% |