IMB Indonesia: What the Old Building Permit Became and What You Need Now
Published 23 September 2026. Reading time: 9 minutes. By The Indonesian Lawyer.
If you are searching for IMB Indonesia, the first thing to know is that IMB stopped being issued in most of the country back in 2021. IMB (Izin Mendirikan Bangunan) was replaced by a system built around PBG (Persetujuan Bangunan Gedung, or Building Approval) and SLF (Sertifikat Laik Fungsi, or Certificate of Worthiness of Function), following Government Regulation 16/2021 under the Job Creation Law. An old IMB is still legally valid if it was issued before the switch and the building has not been altered. If you are buying land, building new, or renovating, you now apply for PBG, not IMB. This page explains what changed, what it costs, and where people still get it wrong, using Bali as a worked example since the rules are enforced there with more scrutiny than almost anywhere else in the country.
Table of Contents
- Izin Mendirikan Bangunan in English: what the term actually means today
- Why PBG replaced IMB and what stayed the same
- SLF: the certificate that finishes the job PBG starts
- Documents required for a PBG application
- Costs and timelines by project type
- Why a building permit consultant matters more than the paperwork
- FAQ
Izin Mendirikan Bangunan in English: what the term actually means today
Izin Mendirikan Bangunan in English translates to "permit to establish a building." It is the historical name for Indonesia's building permit, used from the 1980s until 2021. If you see it referenced today in a contract, a land certificate, or a due diligence report, it usually means one of two things: the building was permitted before 2021 and the old IMB document is still on file, or the person writing uses the term loosely to mean "building permit" in general, the way people still say "IMB" out of habit even though the actual product issued now is a PBG.
This matters for buyers. If a seller shows you an "IMB" dated 2023 or later, that document does not exist under that name anymore in the OSS system, and you should ask direct questions about what was actually submitted and approved. An old, genuine IMB from before mid-2021 is still valid and does not need to be reissued as a PBG unless the building is renovated, expanded, or changes function (a villa converted to a guesthouse, for example).
Why PBG replaced IMB and what stayed the same
PBG replaced IMB because the Job Creation Law restructured how technical approvals are issued nationwide, moving the process online through the OSS (Online Single Submission) system and tying it to a Building Information System called SIMBG. The intent behind PBG is the same as the old IMB: confirm the building conforms to zoning, structural, and safety standards before construction starts. What changed is the sequence and the emphasis.
Under the old IMB system, you got approval, built, and that was largely the end of it. Under PBG, approval to build is only step one. You are also required to obtain an SLF before the building can legally be occupied or used, which did not exist as a mandatory step for most private buildings under the old regime. In practice this means the compliance burden did not disappear, it moved to the back end of the project, and a lot of owners who built quickly and skipped SLF are only discovering the gap when they try to sell, rent commercially, or get insurance.
| Feature | Old IMB system (pre-2021) | Current system (PBG + SLF) |
|---|---|---|
| Legal basis | Local bylaws, varied by region | Government Regulation 16/2021, national standard |
| Application channel | Manual, through local Dinas PUPR office | Online via SIMBG/OSS, verified locally |
| Occupancy check | Rarely enforced separately | Mandatory SLF before legal use |
| Validity | Indefinite once issued | PBG valid once built to spec; SLF must be renewed periodically |
| Typical timeline | Varied widely, often 1 to 3 months | 4 to 12 weeks for PBG, plus SLF after construction |
SLF: the certificate that finishes the job PBG starts
SLF is issued after construction is complete and confirms the finished building matches the approved PBG drawings and meets safety and function standards. Without SLF, a building is technically not cleared for legal use, whatever the intended function: residence, retail, office, hotel, or warehouse. Local enforcement of this varies. In Jakarta and Bali, SLF is increasingly checked during due diligence for sales, business licensing (NIB updates), and by banks before mortgage approval. In some other regions enforcement is looser, but that is not the same as the requirement not existing. Owners who built without a PBG, or who altered the building after PBG approval without updating it, cannot get a clean SLF until the discrepancy is resolved. This is the single most common problem we see in property due diligence work across Bali, Jakarta, and Batam: a villa or shophouse that looks fully legal on the surface but has no SLF, or has an SLF that no longer matches what was actually built.
Documents required for a PBG application
The document list depends on project scale and function, but a standard residential or small commercial PBG application generally requires the following.
- Proof of land rights (certificate, or in the case of leasehold foreign arrangements, the underlying agreement plus landowner's certificate)
- Architectural drawings prepared or certified by a licensed architect, including site plan, floor plans, and elevations
- Structural calculations, for buildings above a certain size or number of floors, prepared by a certified structural engineer
- Zoning conformity confirmation, checked against the local spatial plan (RTRW/RDTR) for that district
- Environmental documentation, ranging from a simple statement letter for small buildings up to a full AMDAL or UKL-UPL for larger or higher-impact projects
- Identity documents of the applicant, and for foreign-owned entities, the company's NIB and deed of establishment
- Technical assessment fee payment, calculated by local authorities based on building coefficient, function, and floor area
For anything beyond a single-story private residence, we recommend budgeting extra time for the zoning check specifically. Land that looks buildable often sits in a zone (green belt, agricultural, or tourism-restricted) where the intended function is not permitted regardless of how clean the land certificate looks. This is the check that should happen before you sign a purchase agreement, not after.
Costs and timelines by project type
Government fees for PBG are set by local regulation and calculated on a formula involving building area, function, number of floors, and a regional index. There is no single national price. As a rough planning range, expect the following, and confirm the exact figure with the local Dinas PUPR or through a permit consultant before budgeting a project.
| Project type | Typical PBG timeline | SLF needed after build | Approximate cost range (govt fee only) |
|---|---|---|---|
| Private residence, under 200 sqm | 4 to 8 weeks | Yes, before occupancy | Low, several million rupiah |
| Villa or guesthouse (commercial use) | 6 to 10 weeks | Yes, mandatory for business licensing | Moderate, varies by district and floor area |
| Shophouse or small commercial unit | 6 to 12 weeks | Yes | Moderate to higher, depends on zoning class |
| Hotel, resort, multi-unit development | 3 to 6 months, often longer | Yes, phased if built in stages | Significant, includes AMDAL/UKL-UPL costs |
These are government fee ranges only. Architect fees, structural engineering, environmental study costs, and legal or consultant fees sit on top and vary depending on project complexity and region. Jakarta, Surabaya, and tourist-heavy parts of Bali tend to run on the higher end because of stricter zoning review and higher technical assessment indices.
The most expensive mistake: building first and applying for PBG afterward, assuming it can be "regularized" later like the old IMB sometimes could. Under the current system, a completed building without prior PBG approval is treated as unauthorized construction. Retroactive legalization is possible in some cases but is slower, costlier, and not guaranteed, and in the meantime the building cannot get SLF, cannot be legally sold with clean title representations, and cannot be insured properly. Apply before you pour the first foundation, not after the roof goes on.
Why a building permit consultant matters more than the paperwork
A building permit consultant earns their fee at three specific points: the zoning check before you commit to land, the technical drawing package that gets accepted on first submission instead of bounced back for corrections, and the SLF filing that closes the loop after construction. Each of these is where foreign buyers and even local investors lose the most time. The zoning check matters because Indonesia's spatial plans are detailed at the sub-district level and change periodically. A consultant who works the local district regularly knows the current RDTR classification without having to guess from an outdated map. The drawing package matters because reviewers reject incomplete or non-compliant submissions rather than requesting clarification, which restarts the clock. And SLF matters because it is the step most owners forget entirely, since it happens after the exciting part of the project (moving in, opening the business) is already done. If you are structuring a foreign-owned business that needs a commercial building permit as part of licensing, this usually needs to be coordinated with your PT PMA company registration in Indonesia and your NIB, since permit applications for commercial use often ask for the entity's business license number as part of the submission.
FAQ
Is IMB still used in Indonesia?
No, IMB has not been issued as a new document since Government Regulation 16/2021 took effect in most regions in 2021. It was replaced by PBG (Persetujuan Bangunan Gedung). An IMB issued before that date remains legally valid as long as the building has not been altered or changed in function since.
What does Izin Mendirikan Bangunan mean in English?
Izin Mendirikan Bangunan translates to "permit to establish a building." It was Indonesia's standard building permit from the 1980s until 2021, when it was replaced nationally by PBG (Building Approval) followed by SLF (Certificate of Worthiness of Function) as a two-stage system.
How much does a PBG cost in Indonesia?
There is no single national fee. PBG costs are set by local regulation based on building area, function, floor count, and a regional index, so a small house permit in one district can cost less than the same size building in a district with a higher assessment index. Government fees are typically modest for private homes and increase meaningfully for commercial and hospitality projects. Confirm the exact figure with the local Dinas PUPR office or a permit consultant.
Do I need both PBG and SLF?
Yes. PBG is the approval to build, obtained before or during construction. SLF is the certificate confirming the finished building matches the approved plans and is safe to occupy, obtained after construction is complete. A building with PBG but no SLF is not legally cleared for occupancy or commercial use.
Can I buy property in Indonesia without checking the building permit status?
You can, but it is a common source of dispute afterward. Buildings without valid PBG or SLF, or with permits that no longer match the actual structure, create legal exposure for a new owner: difficulty selling, difficulty getting a business license if the building is used commercially, and difficulty insuring the property. A property due diligence check before purchase should always include permit status.
What happens if I build without a permit in Indonesia?
Construction without PBG approval is treated as unauthorized building work. Consequences can include a stop-work order, fines, and in some cases a demolition order, particularly where the structure violates zoning rules rather than just missing paperwork. Retroactive approval is sometimes possible but is slower and less certain than applying before construction starts.
Who applies for PBG, the owner or the builder?
The property owner or the entity holding rights to the land is the applicant of record, though in practice an architect, contractor, or legal consultant typically prepares and submits the technical package on the owner's behalf. For foreign investors operating through a PT PMA, the company applies using its own legal documents and NIB where the building is for commercial use.
If you are dealing with a building permit question, whether it is checking permit status before buying land, applying for PBG on a new project, or closing out an SLF that was never filed, send the details through WhatsApp at +62 877-9626-0478 or through our contact page. The first consultation is free, and for anything involving land or an existing structure we recommend starting with a straightforward document check before any money changes hands. You can also read more about our property due diligence services or browse our full services overview.