How construction lending differs from buying an established home

Construction lending in practice

During construction the security is incomplete. Lenders manage that by staging advances, inspecting progress and holding the remaining facility until the next claim is verified. Interest is often charged on the amount already drawn, not on the full approved limit. When the home is finished, the loan is often converted to a standard principal-and-interest home loan. The conversion terms are in the contract, not on this page.

Progress payments

Builders issue progress claims, for example deposit, base, frame, lock-up, fixing and completion. Names and percentages vary by contract. The lender checks the claim against the build and its valuation. If a claim is higher than the lender will release, the shortfall is the owner’s problem in that period. That is why construction cash flow planning is different from an established-home settlement.

Land and build: one contract or two

Buying a completed house-and-land package under one contract is not the same as buying vacant land and signing a separate building contract. Duty, first-home support and lending can all change with that structure. South Australian calculators on this site ask about property type for that reason. Do not treat “land and build” as interchangeable with “established home” in either the duty estimate or the loan.

Contracts

A building contract sets the price, variations, time, defects liability and how progress claims are made. A land contract sets the land price and settlement. Finance conditions, sunset dates and variation clauses are legal terms. This website does not review contracts. Unexpected variations are a common way construction budgets grow after the loan was sized.

Valuations

Lenders may value the land, the “as if complete” home, or both. Progress inspections confirm that the build matches the stage being paid. An agent’s estimated selling price is not a construction valuation. If the “as if complete” value is lower than land plus build cost, the lender may not fund the gap.

Contingency

Construction budgets need a buffer for variations, delays, site costs, holding interest during the build and the possibility that rent or sale of another property does not occur on the assumed date. Contingency is not a government charge and is not added by The Broker Room calculators. Leaving it out is a planning error, not a calculator error.

Why this is unlike an established purchase

An established purchase usually has one price, one settlement, and a building that can be valued as it stands. Construction has a moving drawdown, two possible contracts, a period when the security is incomplete, and more dates on which money must be available. First-home grants and duty relief can also use different tests for new homes and vacant land. Check the current RevenueSA rules rather than copying an established-home estimate.