Planning & Constraints Analysis

Local Council Planning Overlay & Compliance Checking

Understand what you can and cannot build on a property before you buy or design. Our planning constraints analysis automatically checks local council planning overlays, heritage registers, flood data, and development application history to identify restrictions and opportunities.

Key Highlights

Character Housing Overlay

Identifies properties within character housing or traditional building character overlay areas. These provisions affect demolition controls, building height, form, and materials for new construction and alterations.

Flood Overlay & Risk Assessment

Checks river and creek flood overlays with property-level flood depth data where available. Flood overlay status affects insurance, building requirements, minimum floor levels, and can significantly impact property value.

Heritage Overlay (Local & State)

Checks both local council heritage listings and state heritage register entries. Heritage-listed properties have strict controls on alterations, materials, and demolition.

Basement Compliance Testing

For properties considering basement construction, our tool tests the proposed design against the local planning scheme's basement definition at key perimeter points.

Easement & Encumbrance Analysis

Detailed easement analysis from cadastral survey data. Calculates total easement area as a percentage of the lot, flags severity (minor/moderate/significant/critical), identifies each easement's purpose (stormwater, sewer, overland flow, access), and warns if easements restrict building potential for extensions or new construction.

How It Works

1

Property Location Lookup

Enter the property address to retrieve its cadastral lot and plan details, which are used to query the relevant council's spatial overlay databases.

2

Overlay & Easement Analysis

The system checks the property boundary against all relevant planning overlays: character, heritage, flood, landslide, and biodiversity. Easement data is retrieved from cadastral records and analysed for lot coverage and development restrictions. Results are returned as a traffic-light summary.

3

DA History Review

Planning Alerts API is queried for recent development applications within proximity of the property. This reveals what neighbours have built and approval trends.

4

Compliance Assessment

For specific build scenarios, the system assesses compliance with relevant overlay provisions and generates a summary of constraints, required approvals, and potential resolution options.

Data Sources

  • Local Council Planning Schemes — Spatial overlay data via open data portals
  • State Heritage Registers — State heritage listings
  • Local Council — Local heritage listings
  • Planning Alerts API — Development application tracking
  • Council Flood Maps — Property-level flood depth data
  • Council Open Data — Zoning and suburb boundary data

Benefits

  • Traffic-light constraint summary at a glance
  • Identifies all relevant planning overlays for the property's council
  • Easement analysis with lot coverage percentage and severity rating
  • Flood depth data at the property level where available
  • Development application history in the surrounding area
  • Basement compliance testing against local planning scheme definitions
  • Heritage and character overlay impact assessment

Disclaimer: Planning constraint analysis is based on publicly available council data and may not reflect the most recent amendments or site-specific conditions. Always verify constraints directly with your local council and consult a qualified town planner.

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