Garden Suburb zoning & planning overlays
A planning-constraint profile of Garden Suburb
(Lake Macquarie, NSW) - 1.87 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 3 October 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
1.87 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 Garden Suburb'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 Garden Suburb
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.
Garden Suburb at a glance
How Garden Suburb is zoned
Buying in Garden Suburb? 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 1.87 km², Garden Suburb 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, 69% is flagged bushfire-prone. There is 1 heritage-listed site on record, and the dominant land-use zone is Low Density Residential. The median lot measures about 714 m² across 723 parcels.
Who lives in Garden Suburb
Census 2021 figures published by the ABS for the Garden Suburb 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 1054, and decile 8 within New South Wales. The national average is 1000.
Age profile
Share of Garden Suburb's 1,959 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Glendale - Cardiff - Hillsborough, the wider ABS statistical area containing Garden Suburb. There is no annual population series published at suburb level, so this describes the surrounding area rather than Garden Suburb itself.
22,959 in 2001 to 25,569 in 2025, up 11%.
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.
Garden Suburb 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 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 Garden Suburb 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 60% of Garden Suburb. 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 Garden Suburb lot.
See what's in the $9 report →Garden Suburb planning - frequently asked
Is Garden Suburb flood-prone?
We don't yet hold flood mapping covering Garden Suburb, 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. Lake Macquarie is the authority to check for flood mapping in this area.
Is Garden Suburb bushfire-prone?
Around 69% of Garden Suburb is mapped as bushfire-prone, compared with a Lake Macquarie average of 65%.
Is Garden Suburb under a flight path?
Aircraft were observed below 3,000 ft over about 60% of Garden Suburb, and over about 71% 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 1,000 ft, with an average of 2,500 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 Garden Suburb?
The dominant planning zone in Garden Suburb is Low Density Residential, though the suburb also includes Deferred Matter and Environmental Management.
Does Garden Suburb have heritage-listed places?
Garden Suburb has 1 heritage-listed place on record.
What is the typical lot size in Garden Suburb?
Across 723 surveyed parcels in Garden Suburb, the median lot size is about 714 m².
Does Garden Suburb have a train station?
There is no train station inside Garden Suburb itself. The suburb is served by 28 bus stops.
What is the population of Garden Suburb?
At the 2021 Census Garden Suburb had 1,959 usual residents, with a median age of 41 and an average household size of 2.9 people. The wider Glendale - Cardiff - Hillsborough statistical area, which contains Garden Suburb, went from 22,959 people in 2001 to 25,569 in 2025, up 11%.
Is Garden Suburb an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Garden Suburb scores 1054 and sits in decile 9 of 10 nationally and decile 8 within New South Wales (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Garden Suburb?
Median household income in Garden Suburb was $2,361 a week at the 2021 Census, against $1,636 for the typical suburb in Lake Macquarie. Median rent was $465 a week and the median mortgage repayment $2,066 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Kotara South | 1.3 km | 3% | 27% |
| Cardiff South | 1.4 km | Not mapped | 38% |
| Kotara Newcastle |
1.7 km | 22% | 34% |
| Cardiff Heights | 1.8 km | Not mapped | 68% |
| Hillsborough | 2.0 km | Not mapped | 81% |
| Cardiff | 2.2 km | Not mapped | 22% |
| Rankin Park Newcastle |
2.3 km | 2% | 54% |
| New Lambton Heights Newcastle |
2.6 km | <1% | 76% |
| Charlestown | 2.8 km | <1% | 47% |
| Adamstown Heights Newcastle |
3.1 km | 8% | 52% |