Apartment Loan: Lender Security and Size Rules

An apartment loan can proceed when the borrower meets the lender’s credit requirements and the apartment meets its security rules. Internal floor area, title and building use can narrow lender choice even when the borrower can afford the repayments. The apartment’s accepted value and permitted loan-to-value ratio (LVR) then determine how much the lender can advance against it.

Apartment Loan Eligibility

Assess the borrower and apartment separately, then combine the results into a funding decision. Borrower assessment covers income, debts, expenses and credit history. Security assessment covers the property the lender can rely on if the loan isn’t repaid.

An owner-occupier can get a home loan to move into an apartment, and an investor can borrow to rent one out. Loan purpose affects servicing, product choice and some lending limits. It doesn’t change the apartment’s floor area or remove a title or occupancy restriction.

In Australia, unit, apartment and flat are everyday descriptions that can overlap. A unit can also be a villa or townhouse. The lender needs the property’s actual layout and legal title, so the advertising label alone doesn’t establish eligibility.

Two Advertised Sizes, Two Security Outcomes

These hypothetical one-bedroom apartments are both advertised as 75 square metres. Their plans show a different amount of living space.

Area	Apartment A	Apartment B
Internal living area	52 square metres	43 square metres
Balcony	8 square metres	17 square metres
Car space	12 square metres	12 square metres
Separate storage	3 square metres	3 square metres
Advertised total	75 square metres	75 square metres

Macquarie’s 10 September 2026 credit guidelines require at least 50 square metres of living floor space for an acceptable residential strata unit with a bedroom. They exclude balconies and car spaces. Apartment A meets that size requirement, while Apartment B falls below it.

That result settles only the size test. Apartment A still needs an acceptable title, location and valuation. The borrower must also qualify.

Obtain the plan and reconcile the area to the lender’s definition before treating an advertised total as usable living space.

Minimum Unit Size

Minimum unit size is a lender-specific measurement, so there isn’t one Australian floor-area threshold that makes every apartment financeable. The comparison below shows why the measurement and layout must stay beside the number.

Lender and source date	Published minimum	Area definition	Layout or assessment condition
Macquarie, guidelines dated 10 September 2026	50 square metres	Living floor space, excluding balcony and car space	At least one bedroom for standard acceptable strata security
BankSA, broker brochure available as at October 2026	40 square metres	Living areas	At least one bedroom

Macquarie’s credit guidelines distinguish a separate-bedroom unit from a studio or bedsitter. At 50 square metres or above, a studio is restricted security requiring individual consideration. Below that area, Macquarie lists studios as unacceptable.

BankSA’s apartment criteria use living areas, so a total that includes parking or a balcony doesn’t establish that the minimum is met. Record the internal measurement and identify separate storage on the plan. Apply each lender’s treatment of storage instead of adding it to living area automatically.

A one-bedroom unit can pass one lender’s minimum and fail another’s. A studio can pass the area test yet require restricted-security assessment because of its layout. A micro-apartment’s smaller living area can exclude standard lenders, and a lender considering restricted security can set a lower LVR.

A larger deposit doesn’t cure a property that the chosen lender lists as unacceptable. First identify a lender that accepts the security type, then establish its lending limit.

Density and Location Restrictions

Density and location rules can reduce the apartment’s maximum LVR even when its floor area is acceptable. Keep postcode restrictions separate from rules for a particular building or development.

A postcode rule applies to a location. A high-density rule can depend on the lender’s classification of the building or area. A development rule can identify an exact project, including buildings that share a street address or form several stages.

Macquarie’s 10 September 2026 guidelines cap high-risk postcode security at 80% LVR. For high-density apartments, they allow consideration up to 80% with principal-and-interest repayments. If any part of the loan is interest-only, the high-density cap is 70%.

Macquarie directs brokers to its calculator’s Security Details section to identify flagged postcodes. Enter the correct postcode and loan purpose, then retain the applicable flag and lending limit with the file. Inner-city location alone doesn’t establish the lender’s classification.

The guidelines also list a property as unacceptable where the borrower owns more than 25% or more than four dwellings in one development. This borrower-concentration rule measures the customer’s ownership. A lender’s exposure to its own loans in the project is a separate assessment.

A lender’s building-exposure limit can restrict additional lending after it has financed other apartments in the same development. Another borrower’s approval in that building doesn’t establish that capacity remains for the next application. Obtain the exact building or stage decision where the lender applies a development register or exposure check.

For example, a hypothetical 52-square-metre apartment can meet the size test while its high-density classification limits borrowing to 80%. Changing to interest-only repayments under Macquarie’s rule lowers that limit to 70%. The floor plan remains identical, but the funding requirement changes.

Title, Use and Building Features

Title and permitted use determine what the borrower owns and whether the lender can accept it as residential security. Obtain the title search and supporting documents before applying an ordinary apartment policy.

Strata, Community, Company and Stratum Title

Strata ownership combines an individual lot with common property governed through the scheme. For community title, obtain the lot title and scheme documents, then establish which shared facilities and obligations affect the apartment. Use the home loan security guide for the wider security categories.

Company title gives the buyer shares and occupation rights. The company owns the property. Collect its constitution, share records and occupation agreement, along with financial statements and transfer restrictions.

For company title, compare lender acceptance and LVR alongside the valuation and resale restrictions. The lender and conveyancer must resolve any restriction on transferring shares or enforcing security. Keep an unresolved company-title issue open instead of treating the shares as an ordinary strata lot.

A Victorian stratum title combines ownership of a registered lot with shares in a service company that owns and manages common property. Consumer Affairs Victoria explains the title distinction. Company and stratum titles there operate outside the Owners Corporations Act 2006 framework.

Identify stratum title from the title search, subdivision documents and service-company records. Obtain the conveyancer’s legal description and the lender’s response to that structure. Strata and stratum are distinct title arrangements, even when the apartments look alike.

Macquarie’s 10 September 2026 guidelines accept Victorian stratum units with an 85% LVR cap inclusive of capitalised low deposit fees. They list company title and Victorian company-share title as unacceptable. BankSA’s broker brochure, available as at October 2026, lists company title up to 80% LVR without lenders mortgage insurance (LMI).

These limits don’t override another lower cap for the same property. They show why title classification must happen before lender selection.

Occupancy, Access and Building Problems

A serviced apartment or hotel letting pool can restrict who occupies the property and how it is rented. Obtain the management agreement and occupancy conditions. Student-only or other restricted accommodation also needs its own security classification.

Macquarie’s guidelines list serviced apartments, strata hotel or motel rooms and university or student apartments as unacceptable. They also exclude dual-key apartments. Calling one of these properties a residential investment doesn’t remove its security restriction.

For mixed-use buildings, distinguish the apartment’s residential lot from a property containing a commercial operation within its own boundary. Macquarie accepts mixed zoning where residential use is permitted, but excludes security that isn’t exclusively residential. Document legal access, shared entrances and any easement that affects use or resale.

Where cladding, structural defects or litigation affect the building, obtain the owners-corporation records and current technical reports. Review remediation scope, completion evidence and how remaining work will be funded. Include insurance terms and any outstanding council orders.

The NSW Government’s strata buying guidance recommends a strata report covering finances, defects, insurance and legal matters. Its cladding guidance for buyers also identifies assessment reports and council notices as information to obtain.

For a large special levy, record the apartment’s share, payment dates and who pays it under the sale contract. Separate money reserved for that levy from the purchase deposit. Give the valuer the building information, then record the lender’s acceptance, conditions or lower LVR alongside the valuation’s marketability comments.

Valuation and Deposit Effects

The apartment deposit must cover the difference between the purchase price and approved loan, plus purchase costs that the loan doesn’t fund. A lender’s accepted value can be below the contract price. Its security cap can also be below the maximum advertised for the loan product.

Calculate the security-based limit by multiplying accepted value by the permitted LVR. Compare that figure with the borrower’s servicing limit and the amount requested. The final advance cannot exceed the applicable lower limit.

Worked Example: A Lower Valuation

In this hypothetical purchase, the completed apartment costs $600,000. The lender accepts a $580,000 value and permits 80% LVR. Assume the borrower can service $500,000, purchase costs are $25,000 and available funds total $150,000.

Funding item	Calculation	Amount
Security-based loan limit	$580,000 multiplied by 80%	$464,000
Total purchase funding	$600,000 plus assumed costs of $25,000	$625,000
Own funds required	$625,000 less $464,000	$161,000
Available funds	Borrower’s documented funds	$150,000
Funding shortfall	$161,000 less $150,000	$11,000

Using the contract price as the value would have suggested a $480,000 loan and $145,000 of own funds. The lower valuation increases the required contribution by $16,000. Servicing supports more borrowing, but the security cap still limits the loan to $464,000.

If the permitted LVR were 70%, the same accepted value would support $406,000. Own funds would rise to $219,000, leaving a $69,000 shortfall. These are assumed lending limits for the example, not an approval or a quote for a particular apartment.

A $60,000 deposit already paid under the contract forms part of the $161,000 contribution. It leaves $101,000 to fund at settlement, including the assumed costs. Avoid counting the paid deposit twice.

Include any applicable LMI or lender fee in the calculation, including capitalisation where permitted. Use the maximum LVR guide to understand how overlapping caps affect the loan limit. For a property bought before completion, the off-the-plan finance guide covers later reassessment and settlement-shortfall planning.

Policy Check Before Submission

Before choosing a lender, collect enough property information to distinguish a policy fit from a decision that still needs a valuation or escalation.

Information to collect	Evidence to use	Decision it supports
Full address, unit number and postcode	Contract and title search	Location and exact development identification
Internal area, bedrooms and separate external areas	Dimensioned floor plan	Minimum area and studio classification
Title and associated rights	Title, scheme or company documents	Acceptable ownership and enforceable security
Building use and occupancy restrictions	Planning records, leases and management agreements	Ordinary residential or restricted accommodation
Apartment count, storeys and project stages	Building or development records	Density and building-exposure checks
Borrower’s other units in the project	Ownership schedule	Borrower-concentration limits
Defects, cladding and outstanding work	Technical reports, meeting records and orders	Remediation and lender escalation
Levies and insurance	Scheme financials, levy notices and insurance documents	Ongoing costs and funds reserved for repairs
Purchase price and available funds	Contract and funding evidence	Loan amount and cash contribution

Keep two separate records. The policy record contains the lender’s dated rules and how the documented property meets them. The property decision contains the valuation, any building-exposure response and the lender’s conditions.

You can use Bulma’s Policy Advisor to compare apartment security rules across 52+ lenders and retain the quoted policy wording. The lender still determines whether the specific apartment is acceptable.

Before lodging, reconcile the accepted value and all applicable LVR caps with servicing and available funds. Record each unresolved title or building issue with its required lender or legal response. Proceed on the loan amount the completed assessment supports.