Buying Off-Plan Property in Indonesia: Process, Risks and Due-Diligence Checklist

How does buying off-plan property in Indonesia work, step by step?

An off-plan purchase in Indonesia moves through four stages: a reservation with a modest holding fee, a notarised binding agreement — a PPJB (conditional sale-and-purchase agreement) or a notarised lease deed for leasehold — then staged payments released against construction milestones, and finally handover with the completion documents. A licensed notary (notaris/PPAT) anchors every stage.

The order matters more than the paperwork names: due diligence before the notarised agreement, the notarised agreement before any significant money, and every later payment tied to inspected progress.

• 1. Reservation — a short agreement and holding fee take the unit off the market while due diligence runs. Insist that the fee is refundable if diligence fails; a non-refundable fee before you have seen the title reverses the logic of the whole process.
• 2. Notarised agreement — the PPJB or lease deed, prepared by a licensed notary, locks every commercial term: price, payment schedule, specifications, delay remedies, renewal options, dispute forum. Nothing agreed only verbally exists.
• 3. Milestone payments — instalments released as construction verifiably reaches agreed stages (foundations, structure, roof, fit-out).
• 4. Handover — a snagging inspection against the specification annex, final payment, completion documents including the SLF (certificate of functional worthiness) where applicable, and registration of the final deed or lease.

Why do milestone-linked payments matter?

Milestone-linked payments are the buyer's main protection in an off-plan purchase: money is released only when construction verifiably reaches an agreed stage. If the developer stalls or fails, your exposure is capped at the value of work already completed — instead of the full purchase price sitting in someone else's project.

Compare the alternative: a calendar-based schedule pays the developer whether or not the building advances, which converts your purchase into an unsecured loan. Milestone payments keep the developer funding progress to get paid — the incentives point the same way as yours.

Verification should be independent: your notary, or a surveyor you appoint, confirms each stage before funds are released. Formal escrow arrangements are less standardised in Indonesia than in mature off-plan markets, which makes the milestone mechanism and the notary's role more important, not less. If a developer resists staged payments or independent sign-off, treat that as information about how the rest of the project is run.

The developer due-diligence checklist

Before any money moves, verify independently: the land certificate at the BPN through your own notary, the PBG building approval, the developer's NIB and KBLI business codes in the OSS system, the exact land right being sold, and a contract covering delay penalties, specifications, leasehold renewals and the dispute forum.

On Lombok and the Gili Islands, ask about the structural engineering basis too: the 2018 Lombok earthquakes are a documented reminder that build quality is a safety and insurance question, not a cosmetic one.

• Land title verified at BPN — your notary (not the developer's) pulls the certificate at the national land agency: right type, holder's name matching the seller, boundaries, and no mortgages, seizures or disputes on the record.
• Land right matches the offer — HGB and Hak Pakai run 30+20+30 years under PP 18/2021; for leasehold, the developer's own right must outlast your full lease term including renewals.
• PBG building approval issued — the PBG (with the SLF at completion) replaced the old IMB under the 2021 Cipta Kerja reforms. No PBG means no lawfully approved build.
• NIB and KBLI codes — the developer's business registration (NIB, issued through the OSS system) should carry construction and real-estate KBLI classifications that match what it is actually selling.
• Delay penalties in the contract — a defined compensation mechanism per period of delay, plus a long-stop date with exit rights, agreed before your first payment.
• Specification schedule as an annex — materials, finishes and dimensions in the notarised contract, not in a brochure.
• Leasehold renewal option priced now — renewal terms and the pricing mechanism written into the deed, never left as "to be discussed later".
• Dispute forum named — which Indonesian court, or which arbitration body (for example BANI), hears a dispute.

Which red flags should stop an off-plan purchase?

Walk away when a seller pressures you to commit before due diligence is complete, suggests a nominee arrangement, promises "guaranteed" returns, or wants to transact without a licensed notary. Each one reveals how the developer treats legal structure — and in an off-plan deal, structure is all you own at first.

• Deadline pressure — "the price rises Friday", "one unit left at this rate". Proper diligence takes weeks; a discount that cannot survive diligence is not a discount.
• Nominee suggestions — a developer proposing an Indonesian stand-in owner is proposing a structure Indonesian courts have voided. Read why in Trawaya's nominee structure guide.
• Promises of "guaranteed" returns — rental income depends on occupancy, rates and operating costs. An honest operator publishes its assumptions and never guarantees outcomes.
• No notary involvement — private receipts and unregistered agreements have no anchor in Indonesia's land system. Every real transaction runs through a notaris/PPAT.
• Refusal to show title before payment — if you cannot see the BPN certificate first, you cannot verify what you are buying.
• Most of the price demanded up front — paying the majority before significant construction removes the one structural protection an off-plan buyer has.

Off-plan vs completed property: the trade-offs

Off-plan buying trades completion risk for lower entry pricing and input on specifications; a completed villa trades a higher price for the ability to inspect the finished asset and start earning sooner. Neither is categorically safer — the outcome depends on developer diligence, payment structure and your income timeline.

How resale actually works for leasehold and PT PMA structures — whether bought off-plan or completed — is covered in Trawaya's exit strategy guide.

How Trawaya structures the Seraphina off-plan process

Trawaya sells Seraphina Isles Villa on Jalan Kelapa, Gili Trawangan, off-plan under a PT PMA structure: land title is shown and verified before any money moves, every agreement is notarised, and payments are staged against construction milestones. Four villas, priced from €120,000 — one sold, V1–V3 available.

The rental projection Trawaya publishes for Seraphina is a model, not a promise: €125 average nightly rate, 65% occupancy and 32% operating costs produce an 11.2% projected net yield. The assumptions are disclosed so you can stress-test them — the realistic yields guide explains how, and the calculator lets you change every input.

Trawaya is a young company: Seraphina is our first project, one of its four villas has sold, and we have no long completed track record — we say so plainly, because an off-plan purchase is partly a purchase of the developer's honesty. Every document on the checklist above is available to buyers before reservation; details are on the Seraphina Isles Villa project page.

Frequently asked questions

Sources

• PP 18/2021 on land rights (HGB, Hak Pakai, leasehold framework)
• OSS — Indonesia's online single submission system (NIB, KBLI, licensing)
• Bank Indonesia — central bank; rupiah settlement rules for domestic transactions