Glen Oak flood map & planning overlays

A planning-constraint profile of Glen Oak (Port Stephens, NSW) - 44.71 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 schematicGlen Oak

Constraint readout

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

Flood overlay 18%

below council avg (45%) · #40 of 45 mapped council suburbs

Bushfire-prone 100%

≈ council avg (82%) · #7 of 45 mapped council suburbs

Environmental18%

below council avg (35%) · #31 of 45 in council

Heritage sites 3 Aircraft seen below 3,000 ft 9% Mostly Primary Production Flood 40th most affected of 45 → Bushfire 7th most affected of 45 →

Elevation hillshade with street names, clipped to Glen Oak'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 Glen Oak

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

49%

of the suburb, at or below 10,000 ft

Below 3,000 ft

of the suburb's area

Lowest measured

500 ft

averaging 5,000 ft

Busiest square

~10 a day

±27%
typical observed square 3 a day

Night movements: observed, lowest 5,000 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.

Glen Oak at a glance

Parcels 223 Median lot 22,864 m² Mapped easements 6 Bus stops 12

How Glen Oak is zoned

Primary Production 56%

Rural Landscape 24%

Environmental Management 14%

National Parks and Nature Reserves 4%

Natural Waterways 1%

Special Activities 0%

Buying in Glen Oak? 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 44.71 km², Glen Oak is highly constrained by planning overlays. About 18% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Primary Production. The median lot measures about 22,864 m² across 223 parcels.

Who lives in Glen Oak

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

Population

426

usual residents, 2021

Median age

years

Median household income

$2,178

per week, Port Stephens suburb typical $1,421

Median rent

$380

per week, Port Stephens suburb typical $365

Median mortgage

$2,167

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 7

most disadvantagedleast disadvantaged

Score 1015, and decile 6 within New South Wales. The national average is 1000.

Relative disadvantage (IRSD) Decile 8

most disadvantagedleast disadvantaged

Age profile

Share of Glen Oak's 426 residents in each ABS age band.

0-4 8.9%

5-14 14.5%

15-19 5.4%

20-24 6.8%

25-34 10.1%

35-44 11.2%

45-54 13.8%

55-64 16.4%

65-74 8.4%

75-84 2.6%

85+ 1.9%

Population trend, 2001 to 2025

Estimated resident population of Seaham - Woodville, the wider ABS statistical area containing Glen Oak. There is no annual population series published at suburb level, so this describes the surrounding area rather than Glen Oak itself.

4,443 in 2001 to 5,899 in 2025, up 33%.

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.

Glen Oak 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 Glen Oak 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 9% of Glen Oak. 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 Glen Oak lot.

See what's in the $9 report →

Glen Oak planning - frequently asked

Is Glen Oak flood-prone?

About 18% of Glen Oak falls within a mapped flood overlay, against the council-wide suburb average of 45%.

Is Glen Oak bushfire-prone?

Around 100% of Glen Oak is mapped as bushfire-prone, compared with a Port Stephens average of 82%.

Is Glen Oak under a flight path?

Aircraft were observed below 3,000 ft over about 9% of Glen Oak, and over about 49% 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 5,000 ft. At the busiest point in the suburb about 10 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 Glen Oak?

The dominant planning zone in Glen Oak is Primary Production, though the suburb also includes Rural Landscape and Environmental Management.

Does Glen Oak have heritage-listed places?

Glen Oak has 3 heritage-listed places on record.

What is the typical lot size in Glen Oak?

Across 223 surveyed parcels in Glen Oak, the median lot size is about 22,864 m². There are also 6 registered easements mapped in the suburb.

Does Glen Oak have a train station?

There is no train station inside Glen Oak itself. The suburb is served by 12 bus stops.

What is the population of Glen Oak?

At the 2021 Census Glen Oak had 426 usual residents, with a median age of 40 and an average household size of 3.3 people. The wider Seaham - Woodville statistical area, which contains Glen Oak, went from 4,443 people in 2001 to 5,899 in 2025, up 33%.

Is Glen Oak an advantaged suburb?

On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Glen Oak scores 1015 and sits in decile 7 of 10 nationally and decile 6 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).

What is the median household income in Glen Oak?

Median household income in Glen Oak was $2,178 a week at the 2021 Census, against $1,421 for the typical suburb in Port Stephens. Median rent was $380 a week and the median mortgage repayment $2,167 a month.

Compare nearby suburbs

Nearby suburb	Distance	Flood mapped	Bushfire-prone
Duns Creek	4.7 km	17%	100%
Clarence Town Dungog	5.0 km	Not mapped	99%
East Seaham	5.6 km	41%	99%
Seaham	7.7 km	48%	97%
Martins Creek Dungog	7.8 km	Not mapped	100%
Butterwick	7.9 km	29%	100%
Brandy Hill	9.7 km	39%	100%
Paterson Dungog	9.8 km	Not mapped	97%
Wallarobba Dungog	10.8 km	Not mapped	100%
Brookfield Dungog	11.2 km	Not mapped	100%

See all Port Stephens suburb profiles →