Free Calculator Tool

Development Profit Calculator

Assess the viability of your development project by calculating gross profit, profit margin, and return on costs.

Project Costs

Profitability Analysis

Cost Breakdown

Purchase Price£800,000
Build Costs£600,000
Contingency£60,000
Finance Costs£150,000
Professional Fees£80,000
Stamp Duty£40,000
Sales & Marketing£25,000

Total Development Costs£1,755,000

Gross Development Value

£2,500,000

Total Development Costs

£1,755,000

Gross Profit

£745,000

Profit Margin (on GDV)

29.8%

Return on Costs

42.5%

Profit on Cost

42.5%

Understanding Development Profit Metrics

Profit Margin is calculated as gross profit divided by the GDV, expressed as a percentage. Most lenders and investors look for a minimum profit margin of 20% on GDV to ensure the project has sufficient buffer against market fluctuations.

Return on Costs measures the gross profit as a percentage of total development costs. This metric helps you understand how efficiently your capital is being deployed across the project.

Contingency is a critical safety net applied to build costs, typically between 5% and 15%. It covers unexpected expenses such as material price increases, weather delays, and unforeseen ground conditions.

This calculator provides estimates only. Contact us for a personalised quote based on your specific project.

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