CREDAI's own 2025 survey accepted that roughly 40% of completed urban housing projects sit without OC for more than 12 months — the builder uses your possession letter to discharge his §17 obligation but quietly defers the OC because it triggers refund of his security deposit to the Municipal Corp and limits his ability to make plan changes.

An Occupancy Certificate (OC) is the formal permission from the local planning authority (Municipal Corporation, Municipal Council, Cantonment Board, or Development Authority) certifying:

• The building has been constructed as per the sanctioned plan.
• Civic services — water, sewerage, drainage, electricity infrastructure, lift, fire safety — are in place and tested.
• The building meets the National Building Code 2016 and state-specific building bye-laws.
• It is safe and lawful for occupation.

Without OC, legally you are an unauthorised occupant. Practically, this means:

• No individual electricity meter (DISCOMs ask for OC under their connection regulations).
• No piped water connection in your name — you stay on builder's bulk meter, often paying 30-40% more.
• Higher property tax — most municipalities charge a 1.5x to 2x penalty rate on un-OC'd buildings.
• No home loan top-up / refinance — banks require OC under RBI's KYC and asset-verification norms.
• Resale is impaired — buyers' lawyers refuse to clear title without OC.
• Insurance claims may be denied — both home contents and structural insurance use OC as a baseline.
• Society registration delayed — Co-op Societies Registrar in most states asks for OC before final society registration under the Cooperative Societies Act.

The legal anchor is in your state municipal law — §353-A Maharashtra Municipal Corporation Act 1949, §310 Karnataka Municipal Corporations Act 1976, §347 Delhi Municipal Corporation Act 1957, §288 Tamil Nadu Urban Local Bodies Act 1998. The Real Estate (Regulation and Development) Act 2016 (RERA) at §11(4)(b) and §17(1) also makes the promoter (builder) responsible for obtaining OC and handing it to the allottee — failure is a separately actionable offence.

A Completion Certificate (CC) is issued when the structure matches the approved plan. An Occupancy Certificate (OC) is issued when the building is fit for occupation (services connected, fire NOC, lift fitness, structural stability all separately certified). In some states (Maharashtra, Karnataka) a Part-OC can be issued floor-wise for phased projects. In Delhi, the MCD often issues a combined “OC-cum-CC”. See our companion guide: Completion Certificate — full 2026 guide.

• New flat in a builder project (RERA-registered): the promoter/builder applies. You as the allottee cannot directly apply because the sanctioned plan is in the builder's name.
• Self-built independent house: the owner applies through the architect/licensed engineer who supervised construction.
• Co-op housing society after redevelopment: the developer under the development agreement applies; in dispute the society can apply with a board resolution.
• Plotted building >300 sq m: licensed structural engineer must counter-sign the application.

If you're a flat buyer and the builder is not applying — start with a written reminder under §17 RERA (template below).

The Municipal Corp checklist varies slightly by state, but the core file is the same:

• Application form (state-specific — Form B in Maharashtra, Form 13 in Karnataka, Form C in Delhi).
• Sanctioned building plan (original or certified copy).
• Commencement Certificate (CC issued before construction started).
• Architect's certificate that construction is as per sanctioned plan (Form A1 in Maharashtra under §44 of MR&TP Act).
• Structural stability certificate by an empanelled structural engineer.
• Completion drawings (as-built drawings, 4 sets).
• Fire NOC from Chief Fire Officer / State Fire Services (mandatory for buildings >15 m or commercial).
• Lift inspection certificate from Chief Electrical Inspector / Lift Inspector (under Lifts and Escalators Act).
• Electrical safety certificate by a licensed electrical contractor.
• Rainwater harvesting compliance (mandatory in most states above a plot threshold).
• Sewerage / STP commissioning certificate if applicable (any project >20 dwelling units in most states).
• Solar water heater installation proof (mandatory in Karnataka for buildings ≥600 sq m; similar rules in Maharashtra, TN).
• Property tax assessment during construction (zero outstanding).
• Society / RWA constitution proof if applicable.
• No-encroachment certificate from the Town Planning section.

State-specific entry points:

• Mumbai BMC: https://autodcr.mcgm.gov.in (AutoDCR system) → “Apply for Occupancy Certificate” → upload documents → pay scrutiny fee online. Track on the same dashboard.
• Pune PMC: https://buildingpermission.pmc.gov.in → BPMS portal → “OC application”.
• Bengaluru BBMP: https://sakala.kar.nic.in → Service: “Issue of Occupancy Certificate” → SLA 30 days under Karnataka Sakala Act 2011. Building plan portal: https://sasthra.karnataka.gov.in.
• Delhi MCD: https://mcdonline.nic.in → Building Department → “Occupancy / Completion Certificate”. For DDA-jurisdiction colonies use https://eservices.dda.org.in.
• Hyderabad GHMC: https://dpms.ghmc.gov.in → “Occupancy Certificate”.
• Chennai CMDA / Greater Chennai Corp: https://onlinecmdams.tn.gov.in → “OC application”.
• Kolkata KMC: https://www.kmcgov.in → e-Services → Building → “Completion Certificate / Occupancy Certificate”.
• Ahmedabad AMC: https://ahmedabadcity.gov.in → Online Development Permission System → “OC”.
• Gurugram MCG / HSVP: https://onlinemcg.haryana.gov.in for self-built / DTCP for licensed colonies.
• Noida / Greater Noida Authority: https://noidaauthorityonline.com → Occupancy module.

The portal generates an inward number — keep it; this is your handle for RTI later.

Fees vary widely. Indicative slabs in 2026:

• OC application scrutiny fee: ₹3 to ₹15 per sq m of built-up area (Mumbai ₹15/sq m; Pune ₹10/sq m; Bengaluru ₹6/sq m; Delhi ₹5-12/sq m).
• Water + sewerage connection deposit: ₹6,000 to ₹40,000 per flat depending on size and city.
• Solid waste management fee: ₹2-5/sq m.
• Labour cess (1% of construction value under Building & Other Construction Workers Cess Act 1996) is paid earlier but proof required at OC.
• Compounding charges if any deviation from sanctioned plan — typically 5x to 25x normal scrutiny fee depending on the deviation %.

• Within 15-30 days of fee payment, the Building Inspector / Junior Engineer of the Municipal Corp visits.
• They check: setbacks, height, parking, FSI, fire refuge, lift well, mumty, headroom, ventilation, ramp slope, basement waterproofing, terrace water tanks, STP working, electrical metering rooms.
• They cross-check measurements on a handful of flats (random sampling) against the sanctioned plan.
• Anything beyond ±3% tolerance is logged as a deviation.
• Inspection report is uploaded to the portal — typically within 7-10 days.

• Minor deviations (≤5% of FSI, internal partition changes): compoundable on payment of penalty.
• Major deviations (encroachment on margins, illegal floor, FSI breach >10%): may require demolition; in some states (Maharashtra under DCPR 2034, Karnataka under “Akrama-Sakrama”) regularisation schemes are periodically opened.
• Fire / structural non-compliance: must be physically corrected — no compounding.

This is the most common reason builders sit on OC — the cost of compounding eats their margin and they hope buyers will move in anyway.

• Once compliance is confirmed, the Municipal Commissioner / Town Planner signs the OC.
• In most online states the OC is downloadable as a digitally-signed PDF from the same portal — equally valid as a physical copy under the IT Act §4 + §5.
• Builder is required under §17(1) RERA to hand over the OC to allottees within 15 days of receipt — get it in writing on the society / individual letterhead.

Within 90 days of receiving OC:

• Apply for individual electricity meter in your name with the DISCOM (BESCOM, MSEDCL, BSES, TPDDL, TANGEDCO, etc.). Quote OC number.
• Apply for individual water connection with the city water board. Quote OC number.
• Apply for property tax assessment in your name at the regular slab — pay back-tax differential if any.
• Update your Khata / Property Card / Mutation at the city revenue office.
• Submit OC to your home loan bank for record (releases withheld disbursement, if any).
• Society can now apply for conveyance / deemed conveyance under §11 of MOFA 1963 (Maharashtra), or equivalent law.

+-----------------------------------+--------------------------------------+
| OC scrutiny fee (Mumbai BMC)      | ₹15 per sq m of built-up area        |
+-----------------------------------+--------------------------------------+
| OC scrutiny fee (Pune PMC)        | ₹10 per sq m + 18% GST               |
+-----------------------------------+--------------------------------------+
| OC scrutiny fee (Bengaluru BBMP)  | ₹6-8 per sq m (slab-based)           |
+-----------------------------------+--------------------------------------+
| OC scrutiny fee (Delhi MCD)       | ₹5-12 per sq m (zone-dependent)      |
+-----------------------------------+--------------------------------------+
| Water + sewer infra deposit       | ₹6,000–₹40,000 per flat              |
+-----------------------------------+--------------------------------------+
| Statutory SLA — Maharashtra       | 30 days under MR&TP §44 + DCPR 2034  |
+-----------------------------------+--------------------------------------+
| Statutory SLA — Karnataka         | 30 days (Sakala Act 2011)            |
+-----------------------------------+--------------------------------------+
| Statutory SLA — Delhi             | 30 days under MCD Building Bye-laws  |
+-----------------------------------+--------------------------------------+
| Compounding penalty (minor dev.)  | 5x to 10x normal scrutiny fee        |
+-----------------------------------+--------------------------------------+
| RERA complaint fee (most states)  | ₹5,000 (allottee, single project)    |
+-----------------------------------+--------------------------------------+
| RTI to Municipal Corp PIO         | ₹10 (court fee stamp / IPO / cash)   |
+-----------------------------------+--------------------------------------+

• Builder hasn't applied at all. Despite handover, no OC application has been filed because builder anticipates failing the plan-deviation check. Find out via RTI to the Building Permission Department — ask “Has any OC application been received for [project name, plot/CTS no.]? If yes, on what date and what is current status?”
• Plan deviations — extra floor, larger built-up than sanctioned, parking converted to shops, fire refuge missing. The compounding cost falls on the builder; until he pays, file is held.
• Fire NOC pending. Fire department has its own queue — typically 30-60 days. Track on state fire services portal.
• Lift inspection pending. Chief Electrical Inspector / Lift Inspector is centralised in most states; backlogs of 3-4 months are common in Mumbai and Pune.
• STP not commissioned. For projects >20 units, the State Pollution Control Board needs to certify the STP — separate clearance.
• Property tax dues. Municipal Corp will not even take the OC file without zero-dues certificate.
• Labour cess unpaid. Builder forgot to remit the 1% cess; until paid, no OC.
• Society conveyance issues. In Maharashtra, society conveyance is sometimes confused with OC — they're separate; conveyance can wait but OC must come first.

• Send a registered AD letter (or email + WhatsApp + builder's RERA portal grievance form) quoting §11(4)(b) and §17(1) of the RERA Act 2016: “Promoter shall obtain occupancy certificate from competent authority and make it available to allottees individually, or to the association of allottees, as the case may be.”
• Give 30 days to respond. Keep the postal receipt.

• File an RTI to the PIO — Building Permission Department of your Municipal Corp.
• Ask: (i) date of OC application, (ii) date and findings of site inspection, (iii) list of deviations noted, (iv) compounding amount demanded, (v) current file status with name and designation of officer holding the file.
• 30-day reply window under §7(1) RTI Act 2005.

• File at your state RERA portal: maharera.maharashtra.gov.in (Maharashtra), rera.karnataka.gov.in (Karnataka), rera.delhi.gov.in (Delhi), upreraconsumer.in (UP), tnrera.in (Tamil Nadu), rera.telangana.gov.in (Telangana), rera.kerala.gov.in (Kerala), rera.rajasthan.gov.in (Rajasthan), wbrera.in (West Bengal), gujrera.gujarat.gov.in (Gujarat).
• Fee ₹5,000 (allottee, single project) in most states.
• Cite §11(4)(b), §14(3), §17(1), §18(1) — interest for delay.
• RERA passes orders within 60 days under §29; appeal to RERA Appellate Tribunal under §44 within 60 days.
• Detailed walkthrough at How to file a RERA complaint — 2026 guide.

• If your loss is quantifiable (rent paid for alternate house, loan EMI for an unusable flat, deposit erosion), file a complaint under §35 of Consumer Protection Act 2019.
• Pecuniary jurisdiction: District Commission up to ₹50 lakh, State Commission ₹50 lakh – ₹2 crore, NCDRC above ₹2 crore.
• Online portal: https://edaakhil.nic.in. Fee ₹200 to ₹4,000 depending on slab.

• If the Municipal Corp itself is sitting on a clean file beyond statutory SLA, a writ of mandamus under Article 226 forces them to decide within a court-set timeline.
• Cost: ₹15,000-₹50,000 in lawyer fees + court fees. PIL route possible if 50+ flats are stuck (society can file collectively).

The Municipal Corporation, State RERA, Fire Services, DISCOM, Water Board are all public authorities under §2(h) of the RTI Act 2005.

RTI helps here when:

• The builder claims OC is “applied” but you have no proof — RTI to Building Permission PIO confirms application date and inspection status.
• Inspection has happened but the report isn't shared — RTI extracts the inspection report and deviation list.
• Compounding amount has been demanded but builder is hiding the figure (and trying to recover from buyers) — RTI gets the official demand letter.
• Fire NOC / lift inspection is “pending” indefinitely — RTI to Fire Services / Electrical Inspectorate PIO names the officer holding the file and current queue position.
• You want to verify the OC is genuine before purchase — RTI to Municipal Corp PIO confirms whether OC bearing that number is in the official register.

See: RTI for delayed building plan approval — copy-ready template.

RTI does NOT help here when:

• You want the OC to be issued — RTI is an information-fetching tool, not a directive. Use State RERA + writ for actual issuance.
• You disagree with the compounding amount on merits — that's a quasi-judicial decision; appeal to the Municipal Tribunal or High Court.
• Builder hasn't even applied — RTI will return “no record” and you must escalate to RERA for §17 violation.
• You want compensation for the delay — RTI gets you the file; §18 RERA + Consumer Forum awards the money.

Q. Builder gave me possession but no OC — am I in legal trouble?
You are technically an unauthorised occupant. The Municipal Corp can (in rare cases) demolish or impose use-and-occupation charges on the owner of the structure (the builder, not the allottee). The bigger risks fall on you only at resale, refinance, and society conveyance. Push the builder via §17 RERA.

Q. Can I get my own electricity meter without OC?
Some DISCOMs (BESCOM in Karnataka, MSEDCL in Maharashtra) accept a temporary connection on the basis of an indemnity bond + copy of registered sale deed — at a higher tariff. Permanent meter requires OC. Call the DISCOM 1912 helpline for current rules.

Q. What's the difference between OC and Part-OC?
Part-OC is issued floor-wise or wing-wise for large phased projects — common in Mumbai and Bengaluru towers where lower floors are ready first. Has the same legal effect for the certified portion. Full OC must follow within a fixed period (usually 24 months).

Q. Can the society apply for OC if the builder won't?
Generally no, because the sanctioned plan is in the builder's name. Exception: where a society has already obtained deemed conveyance under §11 MOFA 1963 (Maharashtra), it becomes the legal owner and can apply. For other states, the society can move RERA under §14 to direct the promoter to apply.

Q. Can I refuse to take possession until builder gives OC?
Yes — under §19(3) RERA the allottee is entitled to occupation only after OC is obtained. Any “possession letter without OC” is technically against §11(4)(b). You can refuse, sit out the rent, and claim §18(1) interest until OC. Practical caveat: many allottees can't afford parallel rent + EMI, so they take possession under protest in writing.

Q. Is OC required for plotted houses (independent bungalow)?
Yes, in almost every state. Independent house owners must apply through their architect; for houses below a state-defined plot size (e.g. 200 sq m in Karnataka), a simplified self-certification window exists.

Q. What if my building is in a “regularised unauthorised colony”?
Schemes like Delhi's “PM-UDAY” or Karnataka's “Akrama-Sakrama” allow regularisation of unauthorised constructions on payment — the regularisation certificate is not the same as OC but is treated as equivalent for utility connections. Check the specific scheme rules.

Q. How long is an OC valid?
OC is permanent — it does not expire. But if you make significant alterations (added floor, structural change, change of use to commercial), a fresh sanctioned plan + fresh OC is required.

• Completion Certificate (CC) — 2026 guide
• Builder not handing over flat — escalation guide
• How to file a RERA complaint — 2026 guide
• RTI for delayed building plan approval
• Society NOC — 2026 guide
• Shop & Establishment licence — 2026 guide
• RTI in 12 simple steps
• All Indian government helplines — master directory

Last reviewed: 26 April 2026 by RTI Wiki editorial team. Building bye-laws, RERA fee scales and compounding rates change every year — verify on your Municipal Corp portal or write to admin@bighelpers.in if you spot a stale figure.