SLF (Certificate of Functional Feasibility): why it matters, how to get it, and the risks of not having one

AB
Andrei Balinsky
Founder of Balinsky
Published 13 August 2025
SLF (Certificate of Functional Feasibility): why it matters, how to get it, and the risks of not having one
SLF - Sertifikat Laik Fungsi - Certificate of Functional Feasibility - SLF What is SLF? SLF (Sertifikat Laik Fungsi) is a certificate issued by government authorities confirming that a building is fit for use. It must be obtained before commissioning. Who issues it: The Department of Public Works and Spatial Planning (PUPR) through the SIMBG system. Validity period: - 20 years - for residential houses - 5 years - for all other buildings What is checked: - compliance with the approved design - safety (beams, evacuation, fire protection, electrical systems, etc.) - validity of all documentation - compliance with urban planning regulations Required documents: – drawings, technical plans, test reports - building photos, ID, PBB tax, land agreement - urban planning certificate (SKRK), IPPT permit - environmental documents (SPPL, UKL-UPL, AMDAL), etc. Risks: - Without SLF, operation is prohibited - Violations may lead to fines, suspension of activity, demolition - Serious violations may result in up to 5 years in prison - If SLF was obtained improperly, it may be revoked and the building demolished even after commissioning

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