Constraint Severity Index
Composite scoring of your site constraints. Understand how Green Belt, heritage, ecology, flooding and other designations stack up.
Available: green_belt, conservation_area, listed_building, tpo, flood_zone_2, flood_zone_3, flood_zone_3b, sssi, ancient_woodland, aonb, national_park, scheduled_monument, article_4, contaminated_land, air_quality, noise, local_wildlife, bat_survey, great_crested_newt, badger_sett, ramsar, sac, spa
About this tool: Constraint Severity Index
Composite severity scoring of site constraints — how Green Belt, heritage, ecology, flooding and other designations stack up into an overall difficulty rating.
Use after the constraint check to understand how much the combined designations raise the bar for your application.
Multiple — cross-references all relevant NPPF sections
Use these tools early in your project to understand what environmental, heritage, and ecological constraints affect your site. The results will determine which technical reports you need and shape your application strategy.
Guidance to help you prepare — not formal planning advice. Check the current policy text and your council's local plan before relying on it.