Nashua flood map & planning overlays
A planning-constraint profile of Nashua
(Byron, NSW) - 18.02 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.
Constraint readout
18.02 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Nashua'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 Nashua
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
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.
Nashua at a glance
How Nashua is zoned
Buying in Nashua? 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 18.02 km², Nashua is highly constrained by planning overlays. About 16% of the suburb sits within a mapped flood overlay, and 85% is flagged bushfire-prone. The dominant land-use zone is Primary Production. The median lot measures about 53,408 m² across 118 parcels.
Who lives in Nashua
Census 2021 figures published by the ABS for the Nashua 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 1088, and decile 9 within New South Wales. The national average is 1000.
Age profile
Share of Nashua's 267 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Bangalow, the wider ABS statistical area containing Nashua. There is no annual population series published at suburb level, so this describes the surrounding area rather than Nashua itself.
5,132 in 2001 to 7,627 in 2025, up 49%.
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.
Nashua 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 Nashua 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 Nashua lot.
See what's in the $9 report →Nashua planning - frequently asked
Is Nashua flood-prone?
About 16% of Nashua falls within a mapped flood overlay, against the council-wide suburb average of 22%.
Is Nashua bushfire-prone?
Around 85% of Nashua is mapped as bushfire-prone, compared with a Byron average of 94%.
Is Nashua under a flight path?
Aircraft were observed over about 12% of Nashua in the period sampled, but only above 3,000 ft - the lowest measured was 3,000 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 Nashua?
The dominant planning zone in Nashua is Primary Production, though the suburb also includes Rural Landscape and Environmental Conservation.
Does Nashua have heritage-listed places?
No heritage-listed places are on record within Nashua.
What is the typical lot size in Nashua?
Across 118 surveyed parcels in Nashua, the median lot size is about 53,408 m².
Does Nashua have a train station?
There is no train station inside Nashua itself. The suburb is served by 40 bus stops.
What is the population of Nashua?
At the 2021 Census Nashua had 267 usual residents, with a median age of 48 and an average household size of 2.7 people. The wider Bangalow statistical area, which contains Nashua, went from 5,132 people in 2001 to 7,627 in 2025, up 49%.
Is Nashua an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Nashua scores 1088 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 Nashua?
Median household income in Nashua was $2,025 a week at the 2021 Census, against $1,634 for the typical suburb in Byron. Median rent was $450 a week and the median mortgage repayment $2,357 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Booyong | 2.7 km | 20% | 90% |
| Binna Burra | 3.5 km | 12% | 99% |
| Pearces Creek Ballina |
4.5 km | 1% | 59% |
| Brooklet Ballina |
4.7 km | Not mapped | 45% |
| Fernleigh Ballina |
4.9 km | Not mapped | 71% |
| Clunes | 5.2 km | 2% | 58% |
| Eureka | 5.3 km | <1% | 79% |
| Eltham Lismore |
6.2 km | 10% | 16% |
| Possum Creek | 7.3 km | 0% | 99% |
| Alstonvale Ballina |
7.3 km | Not mapped | 57% |