House and Land Package: Hidden Costs 2026

The brochure said $650,000. The final bill said something else entirely.

House and land packages are marketed with clean, round numbers. Standard industry practice separates the advertised base price from a long list of additional costs: site preparation, council fees, driveways, fencing, blinds, and air conditioning. These are rarely bundled into the headline figure, but they are never optional.

The typical gap between the advertised price and what you actually spend is $60,000 to $120,000. On a $650,000 package, that can push your real cost past $780,000 before you have bought a single piece of furniture.

Here is exactly where that money goes, along with three worked scenarios with real numbers so you know what to expect.

Site costs: the biggest wildcard

Your land needs to be prepared before construction can begin. These costs are almost always excluded from the advertised price, and they vary enormously depending on the block.

• Soil testing and geotechnical report ($500-$1,500): A geotechnical report reveals what is beneath the surface. Reactive clay soils (Class H or E) can add $25,000-$75,000 in special footing requirements. This is money well spent before you sign anything.
• Site levelling and cut and fill ($2,000-$20,000+): Flat blocks are cheap to prepare. Sloping blocks can cost $50,000 or more. Always inspect the block in person and check the contour survey.
• Retaining walls ($0-$30,000): Required on any sloped block. Budget $200-$800 per square metre depending on height and material.
• Service connections (water, sewer, power, gas, NBN) ($5,000-$15,000): New estates with nearby services run $5,000-$8,000. Rural or end-of-street blocks cost considerably more. Remote electricity connections can reach $140,000 in extreme cases.

Council and compliance costs

Before construction begins, various fees and approvals must be paid to local and state authorities.

• Development application fees ($3,000-$8,000): Building permits, compliance certificates, and council-specific charges. Some councils also levy infrastructure contributions on top.
• Infrastructure levies ($0-$15,000): Some new estates charge contributions toward roads, parks, and community facilities. Check the contract carefully before signing.
• NCC 2025 energy compliance: The National Construction Code 2025 raised minimum energy ratings from 6 to 7 stars. The Housing Industry Association estimates this adds $25,000-$35,000 to every new home. Most builders have updated their standard quotes, but if you are comparing older specifications, the gap can be significant. Ask specifically which NCC version any quote is based on.
• BASIX and BAL compliance ($0-$10,000): BASIX applies in NSW. Bushfire Attack Level ratings apply in fire-prone areas across all states. Higher BAL ratings require fire-resistant materials and ember guards.

Finishing costs: almost never included

Builders hand over a house, not a home ready to live in. The standard package typically leaves you with bare dirt outside and no window coverings inside.

• Driveway ($3,000-$10,000): Most base packages exclude it entirely or include only a basic single-car concrete slab.
• Landscaping ($5,000-$30,000): Turf, garden beds, and basic irrigation. Many councils require minimum landscaping before issuing an occupancy certificate.
• Fencing ($4,000-$12,000): Standard colorbond runs about $100 per metre. A typical suburban block needs 60-100 metres. Estate covenants may specify fence types that cost more.

Interior finishing: the upgrade trap

Base packages come with builder-grade everything. The display home, of course, features the premium options.

• Window furnishings ($3,000-$10,000): Roller blinds for a 3-bedroom home start at around $3,000. Plantation shutters are closer to $10,000-$15,000. Almost never included in the base price.
• Flooring upgrades ($0-$15,000): Base packages include builder-grade carpet and basic tiles. Upgrading to timber-look vinyl plank or engineered timber throughout adds $5,000-$15,000.
• Air conditioning ($5,000-$15,000): Rarely included. A split system per room runs $1,500-$3,000 each. Ducted for the whole house is $8,000-$15,000. Essential in QLD, WA, and NT, and increasingly necessary in NSW and VIC.
• Kitchen upgrades ($0-$15,000): Stone benchtops, an upgraded oven, a better dishwasher. The display kitchen bears little resemblance to the base package specification.

Legal fees and insurance

These costs apply to every build, regardless of size or location.

• Conveyancing and legal fees ($1,500-$3,500): The legal process of reviewing and completing the contract of sale.
• Pre-handover building inspection ($400-$800): An independent inspector reviews the build quality before you accept the keys. This is one of the most valuable things you can pay for.
• Construction insurance ($1,000-$3,000): Required from the moment the slab is poured. Covers damage during the build.
• Home and contents insurance, first year ($1,500-$3,000): Required by most lenders before settlement.

Three worked scenarios

Scenario A: QLD first home buyer, $700,000 package, flat block

This buyer qualifies for Queensland's $30,000 First Home Owner Grant (new build under $750,000, continued past 30 June 2026). Stamp duty is $0 for QLD first home buyers on new homes with no price cap.

Even on a flat block with no surprises, this buyer spends $83,000 more than the advertised package price. The FHOG reduces the out-of-pocket cost, but it arrives after settlement, so it cannot fund your deposit or upfront costs. Use the Grant Stacker to confirm every grant and concession you can stack in QLD.

Scenario B: VIC first home buyer, $600,000 package, sloping block

Victoria's First Home Owner Grant is $10,000 for new homes under $750,000. Stamp duty is $0 (exempt up to $600,000 for VIC first home buyers). The sloping block is where costs escalate significantly.

That sloping block adds over $45,000 in site costs alone. A flat block would have brought the same package in at around $670,000 all up. Always check the contour survey before committing to a block.

Scenario C: NSW first home buyer, $800,000 package, all upgrades

NSW first home buyers are exempt from stamp duty on properties up to $800,000. However, the NSW FHOG has a price cap of $750,000 for house and land packages, so at $800,000 this buyer misses the $10,000 grant by being $50,000 over the cap.

With every upgrade selected, the $800,000 advertised price becomes $916,000 in real spend. That is a $116,000 gap. Run your own numbers with the True Cost Calculator to see what your specific combination of state, price, block type, and upgrades will actually cost. The Stamp Duty Calculator can confirm your exact duty liability or concession by state.

Builder red flags to watch for

Some builders make the gap between advertised and real cost wider than it needs to be. These are the warning signs.

• No fixed site costs: If a builder cannot provide fixed site costs upfront, they are passing all the risk to you. This is the single biggest red flag in any house and land contract. Walk away or get a written cost cap before signing.
• Quotes based on older NCC standards: Since NCC 2025 took effect, quotes built on old energy rating requirements are effectively underquoting. Ask specifically which NCC version the quote is based on.
• Incomplete inclusions list: Every item missing from the inclusions list is a potential variation charge later. Before signing, ask for a detailed list and check specifically for driveway, landscaping, fencing, flyscreens, window furnishings, and air conditioning.
• Resistance to pre-handover inspection: A reputable builder welcomes independent inspection. Any resistance is a signal worth taking seriously.

Eight tips to manage the real cost

1. Always ask for a fixed price that includes site costs. A builder who cannot provide this upfront is a red flag.
2. Get a soil test ($500-$1,500) before committing to a block. It could save you $25,000 or more in unexpected foundation costs.
3. Ask for a full inclusions list and compare it item by item. The cheapest quote often excludes the most.
4. Budget 5-10% on top of everything for contingency. Construction projects almost always produce surprises.
5. Check estate covenants. They may require specific fencing, landscaping styles, letterbox designs, and facade materials that add cost.
6. Book a pre-handover building inspection ($400-$800). It is the best money you will spend before accepting the keys.
7. Compare at least three builder quotes for the same block. Prices can vary 15-25% for similar homes.
8. Remember: the FHOG is paid after settlement, not at deposit. It cannot fund your upfront costs, so budget accordingly.

The best time to understand these costs is before you sign the contract, not after. A $500 soil test and two hours reading the inclusions list can save you $40,000 in surprises.

The bottom line

House and land packages are not dishonestly priced, but they are priced to emphasise the headline number. The real cost is always higher, and on a sloping block with premium finishes, it can be significantly higher.

Before you commit, use the True Cost Calculator to model your specific scenario: select your state, enter the package price, choose your block type, and tick the upgrades you actually want. The calculator shows a full itemised breakdown so there are no surprises at handover.

Once you know your true cost, check how much you can borrow with the Borrowing Power Calculator, and use the Grant Stacker to confirm every grant and concession you may be eligible for. If you are in QLD, the $30,000 FHOG for new homes under $750,000 was continued past 30 June 2026, so a house and land package can still attract it.