Is your site in a nutrient-sensitive SAC catchment?

Check any UK postcode against the live NRW + Natural England catchment boundaries. If you're caught, you'll need a Nutrient Budget Calculation and mitigation before the LPA can grant permission.

Indicative only. This screener is not a substitute for the Welsh Government Nutrient Budget Calculator or Natural England's per-catchment methodology. The dwelling-count figure assumes new wastewater load with no offset from existing land use; real net impact may be lower for change-of-use or agricultural conversions. It does not bind the LPA or statutory consultees. Always consult a qualified planning consultant for submissions affecting SAC catchments. Catchment boundaries are published by Natural Resources Wales (DataMapWales) and Natural England (Defra open data); refreshed with every GapSense release.