Heritage Trigger Helper

Age & location indicators that may trigger heritage processes (e.g. s34 > 60 years, declared sites, archaeology, graves).

Draw/Upload site Year & project type Load heritage overlays Screen & export
Disclaimer: Early, non-binding screen. Always verify with the relevant heritage authority (SAHRA/PHRA) and current municipal scheme/overlay policies.

1) Site

First polygon/multipolygon is used for screening.

2) Structure & Project

3) Heritage Overlays

Declared/Graded Sites #ef4444
Heritage Areas / Overlays #8b5cf6
Archaeology / Palaeo Sensitivity #10b981
Graves / Burial Grounds #f59e0b
Shipwrecks #38bdf8
Tip: Use attribute fields like grade, status, or name if present.

4) Screen & Export

Trigger Value Flag Notes
Overall —
Typical references (South Africa):
  • s34: Structures older than 60 years — permit may be required for alteration/demolition.
  • s35: Archaeology & palaeontology — permits & specialist input may be needed.
  • s36: Graves & burial grounds — strict controls, consultation & permits.
  • Declared/graded sites (I/II/III) & heritage overlays may add local requirements.