Affordable Housing Calculator - PlanningCore

Affordable Housing Calculator

NPPF Affordable Housing Requirements & Tenure Mix Analysis

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NPPF Compliant

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First Homes

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Tenure Split

Development Details

Total Dwellings

Number of units in the scheme

Site Area (hectares)

Gross site area

Gross Development Value (GBP)

Estimated total project value

Location / Region

Affects regional benchmarks

Land Type

Green/brownfield status

Local Plan AH Requirement (%)

Target affordable housing %

Dwelling Mix

Market Units

Market 1-bed

Market 2-bed

Market 3-bed

Market 4-bed

Affordable Units

Affordable 1-bed

Affordable 2-bed

Affordable 3-bed

Affordable 4-bed

Tenure Split (%)

Define the mix of affordable housing types. Must total 100% of affordable units.

First Homes (%)

Minimum 25% of AH

Social Rent (%)

Traditional social rent

Affordable Rent (%)

Max 80% market rent

Shared Ownership (%)

Equity share scheme

Rent to Buy (%)

Intermediate ownership

Viability & Policy Factors

Check applicable factors that may affect AH delivery or viability.

Abnormal site costs

Heritage constraints

Contamination remediation

Significant infrastructure

Vacant building credit applicable

Rural exception site

Build to Rent scheme

100% affordable scheme

Analysis Results

Required Affordable Units

Proposed Affordable Units

Compliance Status

First Homes Compliance

AH as % of Total

Est. AH Transfer Value

Tenure Split Breakdown

Dwelling Mix Comparison

Bed Size	Market Units	Affordable Units	Total Units	AH %

Regional Benchmark Comparison

Policy References & Recommendations

National Planning Policy Framework (NPPF) Paragraphs 65-68
Housing Delivery Test & Five Year Housing Supply
Local authority Local Plan AH policies
Viability appraisal guidance (RICS, BCIS)