Joint Venture Calculator
Enter your land, FSI, rates and costs. See residual land value, sharing scenarios and the developer share needed — and print a proposal.
Open the calculatorJV due-diligence checklist
Title, owner consent, planning review, cost heads, agreement terms and exit conditions to settle before signing.
Open the JV checklistTalk to Aventrix about your land
Share your site details through the existing Joint Venture enquiry form.
Go to the enquiry form
How the calculator works
The formulas behind the numbers
These are the calculations the Joint Venture Calculator performs, so you can check every figure it shows.
- Net land area
- Land area × (1 − land deduction %) — deduction covers road widening, OSR or other unusable area you enter.
- FSI-counted area
- Net land × base FSI × (1 + premium FSI %) — base and premium FSI are your entered, verified assumptions; the tool never selects an FSI for you.
- Saleable area and GDV
- Saleable = FSI area × saleable efficiency %, GDV = saleable area × expected selling rate.
- Developer investment
- Construction (on FSI or saleable area) + soft costs % + premium FSI charges + other costs, plus any non-refundable payment and the funding cost of a refundable deposit.
- Target profit and residual land value
- Target profit = core investment × profit %; Residual land value = GDV − core investment − deposit funding cost − target profit − non-refundable payment.
- Sharing benchmark
- Supported landowner share ≈ (residual land value − non-refundable payment) ÷ GDV, shown alongside fixed 20:80 to 80:20 scenarios and the developer share needed to recover investment plus target profit.
Before you rely on it
What must be confirmed by professionals
- FSI, premium FSI, setbacks, height, parking and road-width eligibility for the actual site — by a licensed architect against current CMDA / DTCP rules and the competent authority.
- Title, owner and co-owner authority, encumbrances and access — by a property advocate.
- Selling rates and absorption — from comparable registered sales, not only listings.
- Construction, approval, finance, marketing, tax and contingency costs — from the developer's own estimates.
- Agreement terms: milestones, security, POA scope, delay and default remedies, and exit.
The calculator is an illustrative model. It is not an approval, a valuation, an offer or a recommended ratio, and it does not model every tax, financing, approval or timing risk.
