Construction Finance · May 2026
Construction Loans Sydney — The Complete Guide (2026)
Building your home or investment property in Sydney is one of the most complex and rewarding projects you'll undertake. The finance side shouldn't be the thing that trips you up. This guide covers everything you need to know about construction loans — from how they work, to what lenders look for, to the common mistakes that cost borrowers tens of thousands of dollars.
How Construction Loans Work: The Progress Draw System
Unlike a standard home loan where funds are released as a lump sum at settlement, a construction loan releases money in stages called progress draws as your build reaches agreed milestones. The five standard stages in NSW are:
🏗️ Slab (base stage) — ~10% of contract price released once the foundation/slab is complete.
🏗️ Frame — ~15% released when the structural frame is erected and inspected.
🏗️ Lock-up — ~35% released when external walls, windows, and roof are complete (property is "locked up").
🏗️ Fixing — ~20% released when internal fittings (cabinets, doors, plumbing, electrical) are installed.
🏗️ Practical completion — final 20% released when the building is complete and a certificate of occupancy has been issued.
The critical benefit: you only pay interest on the funds drawn to date. During the early stages, your interest repayments are minimal — protecting your cashflow during the build.
What Lenders Require for a Construction Loan
Construction loans have stricter documentation requirements than standard home loans. Before approving, lenders typically require:
• A signed, fixed-price building contract with a registered builder
• Council-approved building plans and specifications
• Builder's licence and insurance (home warranty + public liability)
• A quantity surveyor report for loans above $1M (some lenders, not all)
• Land title documents or conditional approval for simultaneous land purchase
The 3 Most Expensive Construction Loan Mistakes
1. Underestimating the build cost — Builders provide a fixed-price contract, but variations (site conditions, design changes, PC items) frequently push final costs above the contract. William's construction industry background means he spots underestimates in contracts before they become mid-build crises.
2. Choosing the wrong lender for construction — Not all lenders are equal on construction. Some have valuer panels that consistently undervalue end values on construction projects; others have slow draw processes that delay your builder. Bridge Finance knows which lenders perform best on construction loans.
3. Not planning the conversion loan — At completion, your construction loan converts to a standard home loan. The rate and structure at this point matter enormously — and they should be negotiated before you start, not after you're exhausted from a 12-month build.
Getting Pre-Approval for a Construction Loan
Construction loan pre-approvals are conditional (not unconditional) until the lender has reviewed the signed building contract and approved plans. This means your pre-approval timeline is typically 4–6 weeks longer than a standard purchase — you need to start the finance conversation before you sign a building contract, not after.
Bridge Finance specialises in construction finance across Sydney. William's 5 years in the construction industry means he understands the build process from both sides — and knows exactly how to present your project to lenders for the best possible outcome.
About the Author
William Zhu
Director, Bridge Finance. 8 years of mortgage broking + 5 years in construction. $600M+ settled. Access to 70+ lenders. MFAA member.
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© 2026 Bridge.Finance Pty Ltd ATF Zhu Family Trust. Credit Representative 567817 of Australian Credit Licence 384704. MFAA Member. AFCA Member.
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