How Much Contingency Does a Development Lender Expect for Cost Overruns?

There is no universal contingency percentage, but lenders and QSs expect a realistic allowance for cost escalation, design changes, latent conditions and programme slippage. A project that only works if every line item lands exactly on budget is not robust enough for debt.

Quick answer: There is no universal contingency percentage, but lenders and QSs expect a realistic allowance for cost escalation, design changes, latent conditions and programme slippage. A project that only works if every line item lands exactly on budget is not robust enough for debt.

Questions borrowers, investors and developers commonly ask

  • My builder contract is fixed price — why do I still need contingency?
  • Who funds an overrun if the loan facility is already fully drawn?

Fixed price does not eliminate every risk

Variations, excluded works, authority charges, latent conditions, builder distress and interest from delays can sit outside the headline contract.

Overruns usually hit developer equity first

Unless the lender formally increases the facility, the borrower needs a credible source of additional funds to maintain cost-to-complete.

Funding / credit lens **Stronger** - Feasibility includes finance and contingency - Equity and cost-to-complete are clear - Builder, QS and exit strategy are credible **Needs closer assessment** - Presales or valuation uncertainty - First-time developer - Cost escalation or planning risk **Warning sign** - Profit exists only before finance costs - No contingency - Funding gap discovered after construction starts

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KK Neelamraju — Founder, GPS Finance Group

KK is a finance and credit professional with more than 20 years of lending and credit experience.

General information only. Commercial-property and development lending criteria vary by lender, transaction, security and market conditions. This is not legal, tax or investment advice.

Frequently asked questions

My builder contract is fixed price — why do I still need contingency?

There is no universal contingency percentage, but lenders and QSs expect a realistic allowance for cost escalation, design changes, latent conditions and programme slippage. A project that only works if every line item lands exactly on budget is not robust enough for debt.

Who funds an overrun if the loan facility is already fully drawn?

Variations, excluded works, authority charges, latent conditions, builder distress and interest from delays can sit outside the headline contract.

Will every lender treat this the same way?

No. Commercial and development lending policy varies materially by lender and transaction.

Should I apply before the structure is tested?

For material or unusual transactions, test lender fit and the funding structure before creating formal applications.

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