Silvan flood map & planning overlays
Silvan farms 2 ha GWZ1 lots for 1,323 people, 91% bushfire-mapped.
A planning-constraint profile of Silvan
(Yarra Ranges, VIC) - 30.09 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 24 October 2026.
Free map preview, then PDF reports from $9 - about the price of an iced latte on a public holiday.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
30.09 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Silvan'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 Silvan
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 24 Oct 2026
typical observed square 0 a day
Night movements: observed, lowest 3,500 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.
Silvan at a glance
How Silvan is zoned
Selling in Silvan? The zoning and planning overlays on this page are the controls a Section 32 vendor statement discloses.
Across its 30.09 km², Silvan is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 91% is flagged bushfire-prone. There are 3 heritage-listed sites on record, and the dominant land-use zone is Green Wedge Zone (GWZ1). The median lot measures about 24,696 m² across 679 parcels.
Who lives in Silvan
Census 2021 figures published by the ABS for the Silvan 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 1041, and decile 8 within Victoria. The national average is 1000.
Age profile
Share of Silvan's 1,323 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Monbulk - Silvan, the wider ABS statistical area containing Silvan. There is no annual population series published at suburb level, so this describes the surrounding area rather than Silvan itself.
5,753 in 2001 to 5,840 in 2025, up 2%.
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.
Silvan 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 | Vicmap Planning and Victorian Government spatial services |
| Bushfire-prone mapping | Mapped | Vicmap Planning and Victorian Government spatial services |
| Zoning | Mapped | Vicmap Planning and Victorian Government spatial services |
| Heritage and environment | Mapped where published | Vicmap Planning and Victorian Government spatial services |
| Aircraft noise contours (ANEF) | Not held | Vicmap Planning and Victorian Government spatial services, 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 24 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 Silvan 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.
See what's in the $9 report →Aircraft have been seen below 3,000 ft over about 65% of Silvan. 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 the indicative soil reactivity range to expect for a Silvan lot.
Silvan planning - frequently asked
Is Silvan flood-prone?
Flood mapping covers Silvan and less than 1% of the suburb falls within a mapped flood overlay (the council-wide suburb average is 7%).
Is Silvan bushfire-prone?
Around 91% of Silvan is mapped as bushfire-prone, compared with a Yarra Ranges average of 95%.
Is Silvan under a flight path?
Aircraft were observed below 3,000 ft over about 65% of Silvan, and over about 89% at any altitude up to 10,000 ft, in the period sampled (4 Sep 2026 to 24 Oct 2026). The lowest measured aircraft was at 1,000 ft, with an average of 3,000 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 Silvan?
The dominant planning zone in Silvan is Green Wedge Zone (GWZ1), though the suburb also includes Public Use Zone (PUZ1) and Green Wedge Zone (GWZ2).
Does Silvan have heritage-listed places?
Silvan has 3 heritage-listed places on record.
What is the typical lot size in Silvan?
Across 679 surveyed parcels in Silvan, the median lot size is about 24,696 m². There are also 434 registered easements mapped in the suburb.
Does Silvan have a train station?
There is no train station inside Silvan itself. The suburb is served by 20 bus stops.
What is the population of Silvan?
At the 2021 Census Silvan had 1,323 usual residents, with a median age of 41 and an average household size of 3.0 people. The wider Monbulk - Silvan statistical area, which contains Silvan, went from 5,753 people in 2001 to 5,840 in 2025, up 2%.
Is Silvan an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Silvan scores 1041 and sits in decile 8 of 10 nationally and decile 8 within Victoria (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Silvan?
Median household income in Silvan was $2,158 a week at the 2021 Census, against $1,999 for the typical suburb in Yarra Ranges. Median rent was $350 a week and the median mortgage repayment $2,167 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Wandin East | 2.4 km | 2% | 47% |
| Monbulk | 5.0 km | Not mapped | 91% |
| Kalorama | 5.5 km | Not mapped | 100% |
| Seville | 5.5 km | 2% | 100% |
| Wandin North | 5.9 km | 3% | 92% |
| Olinda | 6.8 km | Not mapped | 100% |
| Macclesfield | 7.0 km | Not mapped | 100% |
| Mount Evelyn | 7.0 km | 3% | 100% |
| Yellingbo | 7.3 km | <1% | 100% |
| The Patch | 7.5 km | Not mapped | 100% |