Killara flood map & planning overlays
A planning-constraint profile of Killara
(Ku-Ring-Gai, NSW) - 4.64 km², mapped from live council and
state overlay data. This suburb is moderately constrained.
Profile updated 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
4.64 km² - this suburb is moderately constrained by planning overlays.
Elevation hillshade with street names, clipped to Killara'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 Killara
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 5 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.
Killara at a glance
How Killara is zoned
Buying in Killara? 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 4.64 km², Killara is moderately constrained by planning overlays. About 4% of the suburb sits within a mapped flood overlay, and 18% is flagged bushfire-prone. There are 184 heritage-listed sites on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 966 m² across 2,585 parcels.
Who lives in Killara
Census 2021 figures published by the ABS for the Killara 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 1154, and decile 10 within New South Wales. The national average is 1000.
Age profile
Share of Killara's 10,620 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Gordon - Killara, the wider ABS statistical area containing Killara. There is no annual population series published at suburb level, so this describes the surrounding area rather than Killara itself.
18,403 in 2001 to 23,799 in 2025, up 29%.
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.
Killara 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 Killara 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 100% of Killara. 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 Killara. 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 Killara lot.
See what's in the $9 report →Killara planning - frequently asked
Is Killara flood-prone?
About 4% of Killara falls within a mapped flood overlay, against the council-wide suburb average of 3%. Published flood models are held over parts of Killara; the free check on the Flood Model Report page says whether one reaches a given address.
Is Killara bushfire-prone?
Around 18% of Killara is mapped as bushfire-prone, compared with a Ku-Ring-Gai average of 46%.
Is Killara under a flight path?
Aircraft were observed below 3,000 ft over about 100% of Killara, in the period sampled (4 Sep 2026 to 2 Oct 2026). The lowest measured aircraft was at 500 ft, with an average of 3,500 ft. At the busiest point in the suburb about 86 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 Killara?
The dominant planning zone in Killara is Low Density Residential, though the suburb also includes Private Recreation and High Density Residential.
Does Killara have heritage-listed places?
Killara has 184 heritage-listed places on record.
What is the typical lot size in Killara?
Across 2,585 surveyed parcels in Killara, the median lot size is about 966 m². There are also 5 registered easements mapped in the suburb.
Does Killara have a train station?
Yes - Killara has 1 train station: Killara Station. It is also served by 120 bus stops.
What is the population of Killara?
At the 2021 Census Killara had 10,620 usual residents, with a median age of 42 and an average household size of 2.8 people. The wider Gordon - Killara statistical area, which contains Killara, went from 18,403 people in 2001 to 23,799 in 2025, up 29%.
Is Killara an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Killara scores 1154 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 Killara?
Median household income in Killara was $2,802 a week at the 2021 Census, against $3,189 for the typical suburb in Ku-Ring-Gai. Median rent was $620 a week and the median mortgage repayment $3,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Lindfield | 1.3 km | 2% | 41% |
| Gordon | 1.4 km | 7% | 30% |
| West Pymble | 2.5 km | 1% | 54% |
| East Killara | 2.5 km | 6% | 78% |
| East Lindfield | 2.8 km | 6% | 51% |
| Chatswood West Willoughby |
3.0 km | Not mapped | 62% |
| Pymble | 3.0 km | 2% | 18% |
| Roseville | 3.0 km | 3% | 14% |
| Macquarie Park Ryde |
3.2 km | 0% | 37% |
| Chatswood Willoughby |
3.7 km | Not mapped | 13% |