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Development Density Checker
Housing Density Analysis & National Design Code Compliance
Design Code
DPH & HR/ha
Character Aligned
Site Details
Total site area in hectares
Excludes roads, services, retained features
Dwelling Mix
Enter number of dwellings for each type
Design Quality Assessment
Dwellings per Hectare
0 DPH
Habitable Rooms per Hectare
0 HR/ha
Total Dwellings
0
Plot Ratio
0.0
Dwelling Mix Analysis
Density Range Assessment
Range:
Design Quality Score
0/8
Complete the design quality assessment above
Character Area & National Design Code
Optimisation Recommendations
About this tool: Density
Dwellings per hectare, habitable rooms per hectare, plot ratio, dwelling mix analysis, and National Design Code density benchmarking.
When to use it
Use for multi-unit residential schemes to check your density is appropriate for the area. Helps defend against "overdevelopment" objections.
Policy and guidance it draws on
NPPF land use policy L3, National Design Code
Part of Design Intelligence
Use these tools when designing your scheme or reviewing drawings. They help ensure your proposal meets technical standards before submission, reducing the risk of officer objections on design grounds.
Related tools
Space StandardsDaylight & SunlightParkingPrivacy & SeparationAccessibilityDesign CodeTall BuildingsDaylight & Sunlight AssessmentGuidance to help you prepare — not formal planning advice. Check the current policy text and your council's local plan before relying on it.