---
title: Mortgage Broker Perth CBD | Apartment Loans | GNT Finance
description: Perth CBD mortgage broker for apartment buyers. Minimum floor area rules, LVR caps by building and what they do to your deposit, explained before you offer.
url: https://gntfinance.com.au/mortgage-broker/perth-cbd/
section: locations
updated: 2026-09-02
author: Gorakh Timilsina, GNT Finance
---

# Perth CBD Mortgage Broker & Apartment Loans

**In short:** Perth CBD is an apartment market, and apartments are where lender policy bites hardest. Minimum internal floor area rules commonly set around 50 square metres, per-building exposure limits and lower maximum LVRs can double the deposit you need on a small city unit. GNT Finance checks the building before you offer, working from Melbourne by phone, video and e-signature.

The 6000 postcode covers the central business district and the residential strip running north past Hyde Park, and the City of Perth is the local government area for the CBD itself. Land use is dominated by commercial and retail, so almost everything residential is a strata unit in a mid or high-rise building.

## What is on the market in the city

- **Studios and small one-bedroom units**, many in 1990s and 2000s conversions and student-oriented buildings, often 30 to 45 square metres internally.
- **Standard one and two-bedroom apartments** in towers built through the resources boom and after, typically 50 to 90 square metres.
- **Larger apartments and sub-penthouses** on upper floors with river or park outlooks.
- **Serviced and hotel-style units** with management agreements attached, which most lenders treat as a category of their own.

The buyers are investors chasing city yield, downsizers, professionals working in the mining and government towers, and parents buying a base for a student. What almost all of them share is a nasty surprise if they arrange finance after signing rather than before.

## The three rules that decide your deposit

### Minimum internal floor area

Most lenders publish or apply an internal floor area minimum for apartment security, and a threshold **commonly around 50 square metres** appears across a good part of the market. Internal means the living area inside the walls: balconies, courtyards, storerooms and car bays are usually excluded. A unit advertised as "58 sqm" on a strata plan can measure 44 square metres internally once the balcony comes out.

Below the threshold, some lenders decline outright, others will lend only at a much reduced LVR. Above it, a small apartment is usually ordinary security.

### Exposure limits per building

Lenders cap how much of any single complex they will finance, often expressed as a share of the total units. Once that cap is reached, the answer is no regardless of your income, deposit or credit file. Large CBD towers hit these caps far more often than a four-unit villa group ever will.

### Maximum LVR on the security type

Even where a lender is comfortable, city apartments frequently attract a lower maximum LVR than a house, and mortgage insurers apply their own restrictions on high-density postcodes and small units.

| Internal area | Typical treatment across lenders (illustrative) |
|---|---|
| Under 40 sqm | Most decline; a small number lend at 60 to 70% LVR |
| 40 to 49 sqm | Mixed. Some decline, some cap around 70 to 80% |
| 50 to 60 sqm | Generally acceptable, LVR often capped around 80 to 90% |
| Over 60 sqm, low or mid-rise | Usually treated as standard residential security |

These are illustrative patterns, not any named lender's published policy, and they change. The point is the shape of the risk, not the exact numbers.

## Worked example: what a floor area rule costs you

Say you are buying a one-bedroom apartment in a city tower for $420,000. The strata plan shows 48 square metres internal plus an 11 square metre balcony.

| Lender | Position | Deposit needed | Loan |
|---|---|---|---|
| A | Declines, under its 50 sqm minimum | n/a | n/a |
| B | Lends, capped at 70% LVR for this building | $126,000 | $294,000 |
| C | Lends at 80% LVR | $84,000 | $336,000 |

The arithmetic: $420,000 x 70% = $294,000, so your deposit is $420,000 less $294,000 = **$126,000**. At 80% it is $420,000 x 20% = **$84,000**. Same apartment, same buyer, **$42,000** difference in cash, plus duty and costs on top.

Repayments, for illustration at 6.00% p.a. over 30 years:

- $294,000 loan: $294,000 x 0.0059955 = about **$1,763 a month**.
- $336,000 loan: $336,000 x 0.0059955 = about **$2,015 a month**.

Under the APRA serviceability buffer the lender assesses you at about 9.00% p.a., so the $336,000 loan is tested at roughly $2,704 a month. The [LVR calculator](/calculators/lvr/) and the [LVR and LMI guide](/guides/understanding-lvr-and-lmi/) show how these ratios interact.

## Duty, grants and foreign buyers

At the time of writing, for transactions entered into on or after 7 May 2026, the WA first home owner rate of duty is nil to $600,000 and concessional to $800,000, so a $420,000 city apartment could attract no duty for an eligible first home buyer. The $10,000 First Home Owner Grant applies to a **new** home only, which can include a newly completed off-the-plan apartment. The First Home Guarantee cap for Perth is $850,000, though the guarantee does not override a lender's view of the security itself, so a sub-50 square metre unit can still be refused.

Foreign buyers pay an **additional 7% duty surcharge** on residential property in WA, which on a $420,000 apartment is $420,000 x 7% = **$29,400** on top of the ordinary duty, and FIRB approval applies separately. Confirm current settings with the [RevenueWA](https://www.wa.gov.au/service/financial-management/taxation-and-duty/calculate-your-transfer-duty). Temporary residents should also read [home loans for visa holders](/services/home-loans-for-visa-holders/) and [buying property as a temporary resident](/guides/buying-property-as-a-temporary-resident/), because the federal rules on established dwellings are separate again from state duty.

## Off the plan in the city

Off-the-plan city apartments carry their own timing problem: your finance approval will not last the two or three years between signing and completion. Valuations are done at completion, and if the market has moved down, the shortfall is yours to fund in cash. Read [buying off the plan](/guides/buying-off-the-plan/) before you sign, and keep a genuine buffer.

## How we work with Perth CBD clients

GNT Finance is based in Mickleham, Melbourne, and serves Perth by phone, video and e-signature. There is no Perth office. Send us the address, the strata plan and the internal area, and we will tell you which lenders will fund the building and at what LVR before you make an offer. Settlement in Western Australia is handled by a licensed **settlement agent** rather than a conveyancer, which surprises east-coast buyers, so appoint one as soon as your offer is accepted.

We also cover [Subiaco](/mortgage-broker/subiaco/) and [Victoria Park](/mortgage-broker/victoria-park/) nearby, greater [Perth](/mortgage-broker/perth/) and all of [Western Australia](/mortgage-broker/western-australia/). Consultations in English, Nepali or Hindi, with an interpreter on request.

## Frequently asked questions

### What is the minimum apartment size lenders will accept in Perth CBD?

There is no single number, but a threshold around 50 square metres of internal living area appears across much of the market, with balconies and car bays excluded. Some lenders sit higher, a few will consider smaller units at a reduced LVR. Always check the internal figure on the strata plan rather than the marketing brochure.

### Why was I approved for a house but declined on a city apartment?

Because the decline is about the security, not you. Floor area minimums, per-building exposure caps and high-density postcode restrictions all attach to the property. The same income and deposit that comfortably support a suburban house can fail on a 42 square metre studio. Another lender may say yes to the identical file.

### Can I use the First Home Guarantee on a Perth CBD apartment?

If you meet the scheme rules and the price is under the $850,000 Perth cap, yes in principle. But the guarantee removes lenders mortgage insurance; it does not force a lender to accept the security. A small studio can still be refused on floor area. Check the apartment first, then the scheme.

### Do foreign buyers pay more in Perth?

Yes. At the time of writing, a foreign purchaser additional duty surcharge of 7% applies to residential property in Western Australia, on top of ordinary transfer duty, and federal FIRB rules apply separately, including restrictions on established dwellings. Get advice on both before you commit, because the surcharge is a substantial cash cost at settlement.

## Talk to GNT Finance

Buying in the city works when you check the building first and the rate second. Send us the strata plan and we will do that check before you sign anything. [Book a free consultation](/contact/) or call 0426 403 703.