Sackville North flood map & planning overlays

A planning-constraint profile of Sackville North (The Hills Shire, NSW) - 12.96 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.

Planning schematicSackville North

Constraint readout

12.96 km² - this suburb is highly constrained by planning overlays.

Flood overlay 32%

3.7× council avg (9%) · #2 of 23 mapped council suburbs

Modelled flood depth held over parts of Sackville North

Bushfire-prone 92%

1.5× council avg (62%) · #11 of 23 mapped council suburbs

Environmental<1%

below council avg (6%) · #15 of 23 in council

Heritage sites 9 Aircraft seen below 3,000 ft 48% Mostly Rural Landscape Flood 2nd most affected of 23 → Bushfire 11th most affected of 23 →

Elevation hillshade with street names, clipped to Sackville North'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 Sackville North

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

Under observed aircraft

62%

of the suburb, at or below 10,000 ft

Below 3,000 ft

48%

of the suburb's area

Lowest measured

500 ft

averaging 3,000 ft

Busiest square

~2 a day

0 a day below 3,000 ft · ±32% · area average
typical observed square 0 a day

Night movements: observed, lowest 5,500 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.

Sackville North at a glance

Parcels 186 Median lot 29,823 m² Mapped easements 1 Bus stops 4

How Sackville North is zoned

Rural Landscape 90%

Recreational Waterways 9%

Environmental Conservation 1%

Public Recreation 0%

Infrastructure 0%

Buying in Sackville North? 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 12.96 km², Sackville North is highly constrained by planning overlays. About 32% of the suburb sits within a mapped flood overlay, and 92% is flagged bushfire-prone. There are 9 heritage-listed sites on record, and the dominant land-use zone is Rural Landscape. The median lot measures about 29,823 m² across 186 parcels.

Who lives in Sackville North

Census 2021 figures published by the ABS for the Sackville North suburb boundary itself, not a wider region.

Population

388

usual residents, 2021

Median age

years

Median household income

$2,833

per week, The Hills Shire suburb typical $2,650

Median rent

$400

per week, The Hills Shire suburb typical $560

Median mortgage

$3,000

per month

Household size

3.3

people, average

Socio-economic standing

ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.

Advantage and disadvantage (IRSAD) Decile 9

most disadvantagedleast disadvantaged

Score 1061, and decile 9 within New South Wales. The national average is 1000.

Relative disadvantage (IRSD) Decile 8

most disadvantagedleast disadvantaged

Age profile

Share of Sackville North's 388 residents in each ABS age band.

0-4 6.8%

5-14 13.2%

15-19 5.6%

20-24 7.3%

25-34 7.6%

35-44 15.4%

45-54 11.9%

55-64 13.9%

65-74 10.9%

75-84 5.1%

85+ 2.3%

Population trend, 2001 to 2025

Estimated resident population of Dural - Kenthurst - Wisemans Ferry, the wider ABS statistical area containing Sackville North. There is no annual population series published at suburb level, so this describes the surrounding area rather than Sackville North itself.

19,993 in 2001 to 23,005 in 2025, up 15%.

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.

Sackville North 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 Sackville North 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 48% of Sackville North. 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 Sackville North. 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 Sackville North lot.

See what's in the $9 report →

Sackville North planning - frequently asked

Is Sackville North flood-prone?

About 32% of Sackville North falls within a mapped flood overlay, against the council-wide suburb average of 9%. Published flood models are held over parts of Sackville North; the free check on the Flood Model Report page says whether one reaches a given address.

Is Sackville North bushfire-prone?

Around 92% of Sackville North is mapped as bushfire-prone, compared with a The Hills Shire average of 62%.

Is Sackville North under a flight path?

Aircraft were observed below 3,000 ft over about 48% of Sackville North, and over about 62% 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 3,000 ft. At the busiest point in the suburb about 2 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 Sackville North?

The dominant planning zone in Sackville North is Rural Landscape, though the suburb also includes Recreational Waterways and Environmental Conservation.

Does Sackville North have heritage-listed places?

Sackville North has 9 heritage-listed places on record.

What is the typical lot size in Sackville North?

Across 186 surveyed parcels in Sackville North, the median lot size is about 29,823 m². There are also 1 registered easements mapped in the suburb.

Does Sackville North have a train station?

There is no train station inside Sackville North itself. The suburb is served by 4 bus stops.

What is the population of Sackville North?

At the 2021 Census Sackville North had 388 usual residents, with a median age of 41 and an average household size of 3.3 people. The wider Dural - Kenthurst - Wisemans Ferry statistical area, which contains Sackville North, went from 19,993 people in 2001 to 23,005 in 2025, up 15%.

Is Sackville North an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Sackville North scores 1061 and sits in decile 9 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 Sackville North?

Median household income in Sackville North was $2,833 a week at the 2021 Census, against $2,650 for the typical suburb in The Hills Shire. Median rent was $400 a week and the median mortgage repayment $3,000 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Sackville Hawkesbury	2.5 km	55%	93%
Cumberland Reach Hawkesbury	3.2 km	55%	91%
South Maroota	4.4 km	6%	99%
Ebenezer Hawkesbury	4.4 km	41%	92%
Lower Portland	5.3 km	20%	97%
Maroota	5.9 km	<1%	93%
Cattai	6.2 km	50%	95%
Leets Vale	7.4 km	28%	96%
Wilberforce Hawkesbury	9.1 km	50%	78%
Blaxlands Ridge Hawkesbury	10.1 km	5%	100%

See all The Hills Shire suburb profiles →