Buying off the plan in Sydney means purchasing an apartment before or during construction, exchanging on a 10 percent deposit and settling on completion 18 to 36 months later. Benefits include NSW stamp duty deferral up to 15 months, locked-in pricing, and brand-new depreciation for investors. The main risks are build delays and market movement, both reduced by choosing an iCIRT-rated developer.
10 min read | Buyer Guides | Last reviewed June 2026
Buying off the plan can be one of the smartest ways into the Sydney market, but only with eyes open to both the benefits and the risks. This guide covers how off-the-plan works, the stamp duty deferral, the sunset clause protections, the buying process step by step, and how developer selection determines the outcome.
What buying off the plan actually means
Buying off the plan means purchasing an apartment before or during construction, based on architectural plans, a finishes schedule and a display suite rather than a completed dwelling. The buyer exchanges contracts on a 10 percent deposit and settles on completion, typically 18 to 36 months later.
The model is standard for new apartment supply in Sydney because it lets developers satisfy lender pre-sales requirements and lets buyers secure stock (and pricing) early in a release. The trade-off is that the buyer commits before seeing the finished product.
The benefits
- Stamp duty deferral. NSW off-the-plan purchasers can defer stamp duty up to 15 months from exchange or until settlement, preserving capital during the build
- Locked-in pricing. The price is fixed at contract; if the market rises during construction, the buyer captures the uplift
- Maximum depreciation. Brand-new apartments offer the highest depreciation deductions for investors
- First home buyer concessions. Eligible new stock may attract FHBAS stamp duty exemption or concession
- Early selection. Buyers in early releases choose the best aspects, levels and finishes
- Time to save. The 18 to 36 month build period gives buyers time to build the balance of funds toward settlement
The risks (and how to manage them)
| Risk | How to manage it |
|---|---|
| Construction delay | Review the sunset clause; choose a developer with strong delivery track record |
| Market movement | Buy for a 7+ year hold; values can fall as well as rise short-term |
| Valuation shortfall at settlement | Maintain a finance buffer; conservative LVR position |
| Developer delivery / defect risk | Verify iCIRT rating and integrated developer-builder model |
| Finished product differs from display | Review the contract finishes schedule carefully with your conveyancer |
Stamp duty deferral and FHBAS
Two NSW concessions matter most for off-the-plan buyers:
Off-the-plan purchasers in NSW can defer stamp duty payment up to 15 months from contract exchange or until settlement, whichever is earlier. On a $980,000 two-bedroom apartment, that deferral preserves approximately $40,000 of buyer capital through the build period (Revenue NSW, 2026).
First home buyers may also access the NSW First Home Buyer Assistance Scheme: full stamp duty exemption on new homes up to $800,000 and concessional duty to $1,000,000 (Revenue NSW, 2026). Combined with off-the-plan deferral, eligible first home buyers gain meaningful capital relief.
Sunset clauses and buyer protections
A sunset clause sets a long-stop date by which the development must reach completion or strata registration. If that date passes without completion, rescission rights may apply.
NSW reforms have materially strengthened buyer protection here. A developer’s ability to rescind under a sunset clause is restricted without either purchaser consent or Supreme Court approval. This reform was introduced to stop developers cancelling contracts in a rising market to re-sell the same apartments at higher prices. Buyers should still have their conveyancer review the specific sunset date against the realistic construction program.
The buying process step by step
- Step 1. Register interest and review the release: floor plans, pricing, finishes, aspect and level
- Step 2. Secure conditional finance pre-approval
- Step 3. Engage an independent conveyancer to review the contract of sale, disclosure statement and finishes schedule
- Step 4. Exchange contracts with a 10 percent deposit (cash or deposit bond)
- Step 5. Through the build, receive construction updates and make any finishes selections
- Step 6. Pre-settlement inspection 4 to 6 weeks before completion
- Step 7. Settle on completion; strata established; 90-day defect liability period begins
Choosing the right developer
Developer selection is the single largest controllable variable in off-the-plan outcomes. The three checks:
- iCIRT rating: verify at icirt.com. Billbergia holds 4.5-Gold Star (2025)
- Completed track record: inspect comparable completed projects in person
- Integrated developer-builder model: lowers delivery risk and means a single counterparty for warranty rectification
Billbergia’s active off-the-plan stock spans Rhodes, North Sydney (88 Walker Street), Chatswood (Chatswood Grand Residences), Wentworth Point, West Ryde (West Parade) and Concord West (Concord Central), each a transit-oriented or masterplanned location.
Frequently asked questions
Buying off the plan means purchasing an apartment before or during construction, based on plans, finishes schedules and a display suite rather than a completed dwelling. The buyer exchanges contracts on a 10 percent deposit and settles on completion, typically 18 to 36 months later.
Key benefits: NSW stamp duty can be deferred up to 15 months, pricing is locked at contract while the market may rise during the build, brand-new apartments offer maximum depreciation for investors, first home buyers may access FHBAS concessions, and buyers can select finishes and aspect early in a release.
The main risks are construction delays (managed via the sunset clause), market movement between exchange and settlement, valuation shortfall at settlement affecting finance, and developer delivery risk. Choosing an iCIRT-rated developer with an integrated developer-builder model materially reduces delivery and defect risk.
Off-the-plan purchasers of residential property in NSW can defer stamp duty payment up to 15 months from contract exchange or until settlement, whichever is earlier. First home buyers may qualify for full exemption on new homes up to $800,000 and concessional duty to $1,000,000 under the NSW First Home Buyer Assistance Scheme.
A sunset clause sets a long-stop date by which the development must reach completion or strata registration. If that date passes without completion, either party may have rescission rights. NSW reforms restrict a developer’s ability to rescind under sunset clauses without purchaser consent or Supreme Court approval, protecting buyers.
Verify the Equifax iCIRT rating (Billbergia holds 4.5-Gold Star, 2025), inspect completed projects of comparable scale, confirm an integrated developer-builder model where possible, and review the contract with an independent conveyancer. Developer selection is the single largest controllable variable in off-the-plan outcomes.
The strongest off-the-plan precincts combine transit access, school catchments and amenity. Billbergia’s active stock spans Rhodes (Rhodes Central, Rhodes Bay Masterplan), North Sydney (88 Walker Street), Chatswood (Chatswood Grand Residences), Wentworth Point, West Ryde (West Parade) and Concord West (Concord Central).
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Information current as of June 2026. Sources: Revenue NSW, NSW Fair Trading, Conveyancing Act 1919 (NSW) sunset clause provisions, Equifax iCIRT, and Billbergia project documentation. General buyer guidance, not financial, legal or tax advice. Independent professional advice should be sought before exchange.
