Knockrow zoning & planning overlays
A planning-constraint profile of Knockrow
(Ballina, NSW) - 13.19 km², mapped from live council and
state overlay data. This suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Profile updated 26 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
13.19 km² - this suburb is highly constrained on the overlays we could measure - no flood mapping covers this suburb, so this is not a suburb-wide verdict.
Elevation hillshade with street names, clipped to Knockrow's boundary, with the bushfire and environmental overlays drawn on top. Magenta is where aircraft were observed in the sampled period, brightest below 3,000 ft. No flood layer is drawn because we hold no flood mapping for this area.
Nearby suburbs, nearest first
Aircraft noise and flight paths over Knockrow
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 26 Sep 2026
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.
Knockrow at a glance
How Knockrow is zoned
Buying in Knockrow? 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 13.19 km², Knockrow is highly constrained by the planning overlays we hold. We hold no flood mapping covering this suburb, so no flood figure is shown - that is a gap in our data, not an all-clear. Of what is mapped, 59% is flagged bushfire-prone. The dominant land-use zone is Primary Production. The median lot measures about 27,617 m² across 107 parcels.
Who lives in Knockrow
Census 2021 figures published by the ABS for the Knockrow 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 1089, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Knockrow's 186 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Ballina Surrounds, the wider ABS statistical area containing Knockrow. There is no annual population series published at suburb level, so this describes the surrounding area rather than Knockrow itself.
14,963 in 2001 to 19,370 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.
Knockrow data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Not 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 26 September 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 Knockrow 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.
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 Knockrow lot.
See what's in the $9 report →Knockrow planning - frequently asked
Is Knockrow flood-prone?
We don't yet hold flood mapping covering Knockrow, so this page can't say how much of the suburb is flood-affected - that is a gap in our data, not an indication that the suburb is free of flood risk. Ballina is the authority to check for flood mapping in this area.
Is Knockrow bushfire-prone?
Around 59% of Knockrow is mapped as bushfire-prone, compared with a Ballina average of 68%.
Is Knockrow under a flight path?
Aircraft were observed over about 37% of Knockrow in the period sampled, but only above 3,000 ft - the lowest measured was 3,500 ft. 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 Knockrow?
The dominant planning zone in Knockrow is Primary Production, though the suburb also includes Deferred Matter and Environmental Conservation.
Does Knockrow have heritage-listed places?
No heritage-listed places are on record within Knockrow.
What is the typical lot size in Knockrow?
Across 107 surveyed parcels in Knockrow, the median lot size is about 27,617 m². There are also 1 registered easements mapped in the suburb.
What is the population of Knockrow?
At the 2021 Census Knockrow had 186 usual residents, with a median age of 53 and an average household size of 2.5 people. The wider Ballina Surrounds statistical area, which contains Knockrow, went from 14,963 people in 2001 to 19,370 in 2025, up 29%.
Is Knockrow an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Knockrow scores 1089 and sits in decile 10 of 10 nationally and decile 9 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Knockrow?
Median household income in Knockrow was $2,343 a week at the 2021 Census, against $1,812 for the typical suburb in Ballina. Median rent was $550 a week and the median mortgage repayment $2,767 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Kinvara | 3.7 km | Not mapped | 96% |
| Brooklet | 3.7 km | Not mapped | 45% |
| Newrybar | 3.7 km | <1% | 64% |
| Tintenbar | 4.7 km | Not mapped | 77% |
| Lennox Head | 5.1 km | Not mapped | 77% |
| Fernleigh | 5.3 km | Not mapped | 71% |
| Broken Head Byron |
6.3 km | 2% | 92% |
| Cumbalum | 6.8 km | Not mapped | 76% |
| Binna Burra Byron |
7.4 km | 12% | 99% |
| Teven | 7.7 km | Not mapped | 82% |