Mount Portal flood map & planning overlays
A planning-constraint profile of Mount Portal (Blue Mountains, NSW) - 21.91 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
21.91 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Mount Portal'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.
Mount Portal at a glance
How Mount Portal is zoned
Buying in Mount Portal? 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 21.91 km², Mount Portal is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 100% is flagged bushfire-prone. There are 2 heritage-listed sites on record, and the dominant land-use zone is National Parks and Nature Reserves. The median lot measures about 139,284 m² across 2 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.
Mount Portal 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 | 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 |
| Demographics | Not available | Australian Bureau of Statistics (2021 Census and SEIFA) |
Profile last materially updated 5 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 Mount Portal 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 →Mount Portal planning - frequently asked
Where can I see a flood map of Mount Portal?
The schematic on this page is a Mount Portal flood map: the mapped flood overlays drawn over the suburb's terrain and street grid. Flood lines vary block to block, so for a specific property use the free interactive map - search any Mount Portal address and it shows the flood, zoning and bushfire mapping on the exact lot boundary.
Is Mount Portal flood-prone?
Flood mapping covers Mount Portal and none of the suburb falls within a mapped flood overlay. Flood overlays vary block to block, so whether a particular lot is affected needs a property-level check.
Is Mount Portal bushfire-prone?
Yes - around 100% of Mount Portal is mapped as bushfire-prone, compared with a Blue Mountains average of 96%. A bushfire-prone designation can trigger additional building requirements, so check the specific address.
What is the zoning in Mount Portal?
The dominant planning zone in Mount Portal is National Parks and Nature Reserves, though the suburb also includes Natural Waterways and Infrastructure. Zoning sets what you can build and do on a site, and can differ lot by lot.
Does Mount Portal have heritage-listed places?
Mount Portal has 2 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 Mount Portal?
Across 2 surveyed parcels in Mount Portal, the median lot size is about 139,284 m².
Do I need a planning report for a Mount Portal property?
A Mount Portal 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 |
|---|---|---|---|
| Mulgoa Penrith |
5.7 km | 0% | 97% |
| Lapstone | 6.1 km | 0% | 94% |
| Glenbrook | 6.4 km | 0% | 80% |
| Blue Labyrinth | 6.8 km | Not mapped | 100% |
| Massif Ridge | 7.2 km | 0% | 100% |
| Leonay Penrith |
7.3 km | 0% | 37% |
| Blaxland | 8.0 km | 0% | 84% |
| Regentville Penrith |
8.1 km | 0% | 43% |
| Warragamba Wollondilly |
8.3 km | Not mapped | 88% |
| Glenmore Park Penrith |
8.7 km | 0% | 22% |