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Loan to cost calculator
Calculate loan to cost — the principal lever a senior construction lender uses to size a development loan.
Formula
LTC = Senior debt facility / TDC
Senior debt is the construction loan limit, not the peak drawn balance.
Inputs
Senior debt facility
The construction loan limit approved by the senior lender.
Total development cost
All-in cost — land, construction, fees, contributions, finance, contingency.
Output
LTC (%)
Most Australian construction lenders cap LTC at 70–75% on build-to-sell apartments.
Worked example
Senior facility $17M on a $24.1M TDC.
LTC = $17,000,000 / $24,113,000 = 70.5%. Sits at the typical lender ceiling.
Run this calculation in your real feasibility.
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