In short: GNT Finance arranges South Australian home loans by phone, video and e-signature, with a national lender panel and Nepali-speaking service. At the time of writing, SA first home buyers pay no stamp duty on a new home or vacant land and receive a $15,000 grant with no price cap. The First Home Guarantee cap is $900,000 in Adelaide and $500,000 elsewhere. No cost to you in most cases.
South Australia has quietly built one of the most generous first home buyer packages in the country, aimed squarely at people who build. Prices in Adelaide have risen strongly, and the state's response has been to remove duty and the grant price cap for new homes rather than to subsidise established ones. From Melbourne, we help first home buyers, relocating families and investors put those settings to work.
SA first home buyer rules at a glance
| Measure | Rule (at the time of writing) |
|---|---|
| Stamp duty, new home or vacant land to build on | No duty for eligible first home buyers |
| Stamp duty, established home | Standard rates apply; no first home buyer relief |
| First Home Owner Grant | $15,000 for a new home; price cap removed in 2024 |
| First Home Guarantee cap, Adelaide | $900,000 |
| First Home Guarantee cap, rest of SA | $500,000 |
| Foreign purchaser surcharge | 7% additional duty |
The design pushes first home buyers towards house-and-land packages in the growth areas and new townhouses in the middle suburbs. Confirm the rules with RevenueSA, and use our stamp duty calculator for the standard rates that still apply to established homes.
Adelaide versus regional South Australia
Adelaide's $900,000 guarantee cap comfortably covers the growth corridors of Angle Vale, Riverlea and Mount Barker as well as most middle-ring suburbs. Regional SA, including Mount Gambier, Whyalla, Port Lincoln, Port Augusta, Murray Bridge and the Barossa, uses the $500,000 cap, which is one of the lowest regional caps in the country. That still covers a large share of regional housing, and for a new build over the cap a low-deposit loan with LMI or a guarantor arrangement is the alternative. The Adelaide mortgage broker page covers the capital in more depth.
Lender policy notes for South Australia
- Single-industry towns: Whyalla, Port Pirie and Port Augusta have economies tied to steel, smelting and energy, and lenders have at times restricted LVRs in these postcodes. Roxby Downs, the Olympic Dam mining town, is treated as a mining postcode by most lenders.
- Adelaide apartments: the CBD and North Terrace precinct have seen a wave of apartment towers, and small units can face minimum size rules and lower LVRs.
- Heritage and character homes: Adelaide's bluestone villas and cottages are standard security, but unapproved additions and older wiring can surface at valuation.
- Rural and coastal: lifestyle blocks in the Adelaide Hills and holiday homes on the Fleurieu and Yorke Peninsulas may need a lender comfortable with acreage or seasonal rental use.
We run each address against lender policy before you commit. See our lenders page for how the panel works.
Worked example: building in Adelaide's north
Say you buy a $320,000 block in Angle Vale and sign a $380,000 build contract, a total of $700,000, as your first home.
- Stamp duty: nil on the land for an eligible first home buyer, and no duty applies to the build contract.
- First Home Owner Grant: $15,000, paid towards the build.
- Deposit under the First Home Guarantee: 5% of $700,000, or $35,000, no LMI, subject to the lender accepting the package under the scheme.
- Loan: $665,000, drawn progressively as the builder invoices. For illustration, at 6.00% p.a. over 30 years the full repayment once complete is about $3,987 a month.
Compare that with buying a $700,000 established home, where standard SA duty applies and there is no grant. The house-and-land packages page explains how a construction loan is drawn, and construction loan progress payments walks through the stages.
Investors and interstate buyers
Adelaide has been popular with Melbourne investors for its lower entry prices and steady rental demand from universities, defence industry and health. South Australia has its own land tax scale and a 7% foreign purchaser surcharge. We structure the purchase using equity in your existing home and model the outcome in the investment property cashflow calculator. See investment property loans.
Frequently asked questions
Do SA first home buyers pay stamp duty on an established home?
At the time of writing, yes. South Australia's first home buyer duty relief applies to new homes and vacant land on which you build, not to established homes. An established home attracts the standard duty scale regardless of whether it is your first purchase. That is the trade-off the state has made in favour of new construction. Confirm current rules with RevenueSA.
Is there a price cap on the South Australian First Home Owner Grant?
Not since 2024. The $15,000 grant applies to a new home for eligible first home buyers without a price cap, which is unusual among the states. The home must be new, meaning not previously occupied or sold as a residence, and you must live in it for the required period. Check RevenueSA for the current conditions before relying on the grant.
Can I use the First Home Guarantee for a house-and-land package in SA?
Generally yes, subject to the participating lender's policy and the total price sitting under the cap: $900,000 in Adelaide or $500,000 in regional SA. The guarantee then covers the deposit shortfall so no LMI applies, and the construction loan is drawn in stages. We confirm the lender's treatment of the package before you sign the land contract.
Which South Australian towns are outside the Adelaide cap?
Everything outside Housing Australia's Adelaide capital city boundary, including Mount Gambier, Whyalla, Port Lincoln, Port Augusta, Murray Bridge, Victor Harbor and the Barossa and Clare Valleys, uses the $500,000 cap. The boundary is defined by postcode, so if you are looking at the edge of the metropolitan area we check the specific address at the time of application.
Talk to GNT Finance
Whether you are building in Angle Vale, buying in Glenelg, refinancing in Mount Gambier or investing from Melbourne, we compare lenders and apply South Australia's duty and grant rules by phone and video. Book a free consultation or call 0426 403 703.
Written by Gorakh Timilsina
Founder, CEO & Senior Mortgage Consultant at GNT Finance. Gorakh started as a broker assistant, spent years as a senior credit officer assessing loan applications, and now helps Melbourne families get the right loan approved. English, Nepali and Hindi spoken.