Development

GDV

Calculate Gross Development Value across a mixed scheme.

Beginner

Introduction

Who this is for: Developers and lenders establishing the finished value of a scheme.

Why it matters: GDV is the foundation every other development number rests on. Overstate it and the whole appraisal is wrong — including the land price you can afford.

Typical scenario: A mixed scheme of 18 open-market flats, 6 affordable units and a ground-floor commercial unit.

Common mistakes:
  • Using peak-market comparables rather than achievable values in current conditions.
  • Forgetting affordable units sell at a substantial discount to open market.
  • Ignoring commercial floorspace, which values on income rather than per square foot.

Inputs

Open Market Residential

units

£

Affordable Housing

units

%

Commercial

£
%

Analysis

Total GDV is £6,527,643, comprising £5,130,000 open market, £940,500 affordable and £457,143 commercial.

This analysis provides context, not financial advice. Consult a qualified adviser before making investment decisions.

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Sensitivity Analysis

Sensitivity

Adjust the variables below to stress-test this scenario. Results update instantly.

18
036
£285,000
£0£570,000

Export

Live Results

Gross Development Value

£6,527,643

Open Market GDV

£5,130,000

Affordable GDV

£940,500

Commercial GDV

£457,143

Total Units24.00x
Blended Value per Unit£252,938
Affordable Provision25.00%