Postcode restrictions are limits some lenders set on home loans in particular postcodes: a lower maximum loan-to-value ratio, a bigger deposit or a refusal of certain property types there. They do it to manage risk, usually in areas with many similar apartments, small units or volatile prices. Policies differ by lender and change over time.

Postcode restrictions at a glance
Common trigger Typical lender response
High-density apartment areas Lower maximum loan, especially for small units
Areas with oversupply of new units Bigger deposit, tighter valuation
Small or remote towns Lower maximum loan or decline
Concentration in one building Limits on how many loans in that building

Why do lenders restrict some postcodes?

Lenders watch how much they have lent in an area and how values move. If a suburb has a large supply of similar new apartments, or prices have fallen before, they limit new lending there to avoid losses if values drop. In smaller towns the concern is resale, because fewer buyers means a forced sale takes longer.

Which Sydney areas are affected?

Restrictions usually target property types as much as places: small apartments in high-density areas, such as some parts of Zetland, Rhodes, Wolli Creek and Parramatta, are where buyers most often meet them. Houses in the same suburbs are rarely affected. Because each lender keeps its own list, a property one lender restricts may be fine with another. The Rhodes and North Strathfield pages look at apartment lending locally.

How does it affect a first home buyer?

If you are buying with a small deposit, a postcode restriction can mean the lender will not lend the 90% or 95% you need, even if your income is fine. The 5% Deposit Scheme works through participating lenders, and their own property policies still apply. Checking the building and postcode with a broker before you bid avoids a surprise after exchange. The apartment home loans page explains the other apartment rules lenders apply.

What can you do about it?

  • Ask a broker to check the address against several lenders’ policies.
  • Choose a lender without the restriction for that property.
  • Increase the deposit, if the restriction is a lower maximum loan.
  • Look at a different property type, such as a larger unit or a townhouse.

Do postcode restrictions affect refinancing?

Yes. If your property is in a restricted postcode and your loan is above the new lender’s limit, refinancing can be harder. Your current lender will not usually call in the loan, but switching may need a lower loan-to-value ratio. The refinance checklist covers what to check.

A worked example

A first home buyer finds a 45 square metre one-bedroom unit in a high-density suburb and plans to use a 10% deposit. The first lender restricts small units in that postcode to a lower maximum loan. A broker finds two other lenders that accept the unit at 90% with the buyer’s income, and the buyer gets pre-approval with one of them before bidding.

Questions people ask

What is a postcode restriction on a home loan?

A lender’s rule that lowers the maximum loan, requires a bigger deposit or excludes some properties in particular areas.

Do all lenders have the same restricted postcodes?

No. Each lender keeps its own list, and the lists change.

Will a postcode restriction stop me buying?

Rarely, if you check early. Another lender or a different property usually solves it.

Charles Touma checks the address against lender policies before you bid, so the loan matches the property. A free 30-minute call covers it. General information only, not credit advice; lender policies change and every loan is subject to the lender’s assessment.

Sources: NSW Government, buying a strata property; ASIC, Regulatory Guide 209, checked 18 October 2026.

General information only, not credit, legal or tax advice. Your situation is assessed properly before any recommendation. Government scheme details change; figures are current at the time of writing.