A straightforward top up with your current lender can take a couple of weeks. A refinance to a new lender, or a construction style renovation with staged drawdowns, usually takes longer, depending on valuation and lender timing.
Written by Ross McFarlane, Licensed Mortgage Broker (Credit Representative 526725). About the authorTiming depends on the route. A loan increase with your existing lender is generally fastest. A refinance adds a new application and discharging the old loan. A construction style renovation runs over the life of the build, with funds released stage by stage. Having documents and, for bigger jobs, builder details ready keeps things moving.
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Last reviewed: June 2026
General information only. This page provides general information about home loans and is not financial or credit advice, a quote, or a guarantee, and your personal circumstances have not been considered. Lending policies, interest rates, fees and eligibility vary by lender and change over time. Always confirm your own situation with a licensed mortgage broker or lender before acting. Ross McFarlane (Credit Representative 526725) is an authorised Credit Representative of Australian Associated Advisers Pty Ltd t/a Keylend, Australian Credit Licence 392169.