Lachlan flood map & planning overlays
A planning-constraint profile of Lachlan (Derwent Valley, TAS) - 55.25 km², mapped from live council and state overlay data. This suburb is highly constrained.
Everything below is suburb-wide. Overlays change block to block - see which ones actually touch your lot. The map is free.
Constraint readout
55.25 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Lachlan's boundary, with the flood, bushfire and environmental overlays drawn on top. It shows where constraints fall; the interactive map shows them on your exact address.
Lachlan at a glance
How Lachlan is zoned
Buying in Lachlan? The zone and code overlays on this page are the Tasmanian Planning Scheme controls a section 337 certificate reports for a title - a $9 planning report pulls them at the lot level for any Lachlan address.
Across its 55.25 km², Lachlan is highly constrained by planning overlays. About 1% of the suburb sits within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 18 heritage-listed sites on record, and the dominant land-use zone is Rural. The median lot measures about 35,278 m² across 548 parcels. These figures are suburb-wide - the overlays that actually apply to a given lot can differ block to block, which is what a property-level check tells you.
Lachlan data sources and coverage
Every figure below is an aggregate for the suburb boundary. “Not mapped” means LayeredGeo does not hold a source layer covering this suburb; it is never an all-clear for a particular property.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Bushfire-prone mapping | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Zoning | Mapped | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Heritage and environment | Mapped where published | the Tasmanian Planning Scheme and the LIST (Land Tasmania) |
| Demographics | Not available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 20 August 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 Lachlan 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 →Lachlan planning - frequently asked
Where can I see a flood map of Lachlan?
The schematic on this page is a Lachlan flood map: the mapped flood overlays drawn over the suburb's terrain and street grid, covering about 1% of the suburb. Flood lines vary block to block, so for a specific property use the free interactive map - search any Lachlan address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Lachlan flood-prone?
About 1% of Lachlan falls within a mapped flood overlay, against the council-wide suburb average of 5%. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Lachlan bushfire-prone?
Yes - around 100% of Lachlan is mapped as bushfire-prone, compared with a Derwent Valley average of 96%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Lachlan?
The dominant planning zone in Lachlan is Rural, though the suburb also includes Rural Living and Landscape Conservation. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Lachlan have heritage-listed places?
Lachlan has 18 heritage-listed places on record. Heritage listing affects what you can alter or demolish, so confirm whether a specific property is listed or near a heritage place.
What is the typical lot size in Lachlan?
Across 548 surveyed parcels in Lachlan, the median lot size is about 35,278 m². There are also 289 registered easements mapped in the suburb - an easement can restrict where you can build, so always check the title and overlays for the specific lot.
Do I need a planning report for a Lachlan property?
A Lachlan planning report pulls every overlay - zoning, flood, bushfire, heritage and environmental - that touches a single lot, on live council and state data. The interactive map preview is free; a full PDF report is $9.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Glenfern | 3.9 km | 1% | 100% |
| New Norfolk | 7.4 km | 13% | 73% |
| Lawitta | 9.3 km | 5% | 96% |
| Malbina | 9.6 km | 5% | 100% |
| Molesworth | 10.3 km | 1% | 100% |
| Crabtree Huon Valley |
10.6 km | 2% | 100% |
| Sorell Creek | 10.8 km | 11% | 92% |
| Mount Lloyd | 11.0 km | <1% | 100% |
| Boyer | 11.1 km | 5% | 91% |
| Collinsvale Glenorchy |
11.3 km | <1% | 100% |