Tool 03 · PlanSA Code

Subdivision & Zone Check

Enter a South Australian address. We match it against PlanSA's official Planning and Design Code zone and overlay polygons, telling you the zone's intent, your subdivision rights, and every active overlay that affects the property (heritage, bushfire, flooding, road widening, aircraft noise, native vegetation and more).

Property Address
Geocoded via OpenStreetMap. Include suburb name for best accuracy.
What you'll see
  • 🏘 Zone name and planning intent
  • 📐 Subdivision potential and rights
  • 📍 Locality-specific rules (TNVs) that override defaults
  • ⚠ Heritage, bushfire, flood and other overlays
  • 🏫 Government school catchment (primary + secondary)
  • 💬 Plain-English summary of what it all means
Powered by the official Planning and Design Code zone & overlay polygons published by the Department for Housing and Urban Development. Matched directly inside this page, no server required.

Enter a SA address to see its zone, subdivision rights, and every active planning constraint

Frequently asked questions

What's the difference between a zone and a TNV?

The zone (e.g. Suburban Neighbourhood Zone) sets the high-level land use rules. The Technical and Numerical Variation (TNV) is the locality-specific number, minimum site area, frontage, setback, that overrides any zone-level default. For most SA residential zones the TNV is the rule that actually matters; only General Neighbourhood Zone has zone-level baseline numbers.

Where does the zone and overlay data come from?

PlanSA, the SA Government's official planning portal. We pull the published polygon data (zones, overlays, TNVs) and run point-in-polygon lookups against it locally in your browser.

Why doesn't it show easements on the title?

Easements (sewer mains, drainage, rights-of-way) live on the property's Certificate of Title, not in PlanSA's open data. The Form 1 vendor disclosure must list them, use our Form 1 Decoder to check what's been disclosed.

Can I trust the result for a subdivision application?

The tool tells you what the SA Planning and Design Code says. Whether a subdivision will be approved depends on the council's assessment of the specific block, always confirm with the council planner before lodging.

What if my address shows the wrong zone?

Nominatim sometimes geocodes addresses to a slightly wrong point (e.g. the middle of a long road). Try a nearby address, or verify on SAPPA (sappa.plan.sa.gov.au).