What an occupancy certificate and a completion certificate each certify, who issues them, when you need them for loans, utilities and RERA possession, and the portal for each city.
Before you rely on any of this: building rules, fees and portals change, sometimes several times a year. This guide was checked against the official rules in November 2026 and links to each one. An architect who files in your city, or the authority's help desk, can confirm what applies to a specific plot or flat. This is a plain-English guide, not legal advice, and no one can promise an approval.
A completion certificate says the building was built according to the sanctioned plan. An occupancy certificate (OC) says the building may now be lived in or used, with water, sanitation and electricity in place. In many Indian cities the two are separate steps, in some they are one document, and the name changes from state to state.
This guide explains what each certifies, who issues it, when you need it (home loans, utility connections, RERA possession and resale), how to apply, what it costs, and which portal handles it in each city MOA covers.
The clearest national definitions are in the Real Estate (Regulation and Development) Act, 2016 (Act No. 16 of 2016), section 2 (text of the Act as republished in the Tamil Nadu Government Gazette):
So a completion certificate looks back at construction: was it built as approved? An occupancy certificate looks forward at use: is it fit and serviced for people to move in? Both definitions say "by whatever name called", because the Act leaves the actual certificates to state and municipal building rules.
One more definition prevents a common mix-up. Section 2(m) defines the commencement certificate, the permit "to begin development works". In Maharashtra, "CC" on a document usually means this commencement certificate, issued before work starts, not a completion certificate. Mumbai's portal FAQ uses CC exactly that way.
Sometimes. Indian building rules follow three patterns:
Under Maharashtra's UDCPR 2020, regulation 2.9, the owner's architect or licensed engineer who supervised the work furnishes a building completion certificate (Appendix G) to the authority. Under regulation 2.10 the authority inspects and issues or refuses the occupancy certificate. Kerala works the same way: under rule 20 of the Kerala Municipality Building Rules, 2019, the owner submits a completion certificate and the Secretary issues the OC. Noida's 2010 Building Regulations (regulation 20) and Gujarat's CGDCR 2017 (a notice of completion, then Building Use permission) follow the same shape.
Here the "completion certificate" is a document you file, and the OC is the one the authority grants. That differs from the RERA definition, where the competent authority issues the completion certificate.
In Kolkata, rule 28 of the KMC Building Rules, 2009 has the Municipal Commissioner issue a completion certificate, and rule 32 prohibits using a building without one. Tamil Nadu (rule 20 of the Tamil Nadu Combined Development and Building Rules, 2019) and Uttar Pradesh's development authorities (paragraph 2.9 of the UP Model Building Byelaws, 2025) also issue a completion certificate that does the OC's job.
Delhi's MCD issues a completion-cum-occupancy certificate, Mumbai's MCGM an Occupation cum Building Completion Certificate (OC cum BCC), and Gujarat a Building Use (BU) permission, which CGDCR makes mandatory "prior to occupancy or use being made of any building".
Whatever the name, the question to ask a seller or builder is the same: has the authority issued the certificate that permits occupation?
The authority that sanctioned the building plan issues the final certificate: the municipal corporation, development authority, or panchayat secretary.
The completion side is signed by professionals. UDCPR regulation 2.9 requires the architect, licensed engineer, town planner or supervisor who supervised the construction to furnish it. KMC rule 27 requires the notice to be countersigned by the architect or Licensed Building Surveyor and the structural engineer, with a structural stability certificate. Gujarat makes the owner and the Architect or Engineer on Record responsible for certifying compliance. If your architect is to sign, check their registration on the Council of Architecture register first; our guide to hiring a COA-verified architect shows how.
On 17 December 2024, in Rajendra Kumar Barjatya v. U.P. Avas Evam Vikas Parishad (2024 INSC 990), the Supreme Court issued directions to all states in paragraph 21. Among them:
State rules already said much of this. KMC rule 28(6) bars water and drain connections without a completion certificate, and TNCDBR rule 20(11) bars water, sewer and electricity connections without one.
Buying from a builder. Under the RERA Act, section 11(4)(b), the promoter must obtain the completion certificate or the occupancy certificate, or both, and make it available to allottees. Section 17(2) has documents and common areas handed over to the association after the OC, and section 19(10) requires each allottee to take possession within two months of the OC. Section 3(2)(b) exempts projects that received a completion certificate before the Act began.
Resale. No single national rule says a flat cannot be sold without an OC, but a buyer's lawyer and lender will ask for it, and given the Supreme Court's direction on loans, a buyer may struggle to finance a building without one. Treat a missing OC as a reason to pause. Our plot due diligence checklist covers the other documents to ask for.
It depends on the state, because several have exempted small homes:
Maharashtra, Gujarat, Kerala, Delhi and Noida have no comparable blanket exemption for houses in the rules we read. Even where none is required, keep the sanction, stamped drawings and any completion papers together.
If you want to see where these steps fall in a real build, our stage-by-stage construction timeline maps them.
There is no national fee. Each authority sets its own, and most portals calculate it. One published example: MCD's schedule of charges dated 1 October 2024, citing UBBL 2016, charges ₹10 per sq m of built-up area for completion, the same rate as the permit. A Delhi house with 300 sq m (about 3,230 sq ft) built up across three floors would pay ₹3,000. Occupying without the certificate costs more: the same schedule lists a pre-occupancy charge of ₹25,000 per dwelling unit for residential buildings. Noida's 2010 regulations (regulation 10(10)) also set a completion fee of ₹10 per sq m of covered area on all floors.
Timelines, where the rules publish them:
| Where | Rule | Time to decide |
|---|---|---|
| Maharashtra (outside Mumbai) | UDCPR 2020, reg. 2.10 | 21 days from the completion certificate; deemed approved if no reply and the work conforms |
| Mumbai | MCGM AutoDCR FAQ | 7 working days if documents are complete |
| Gujarat | CGDCR 2017, 3.9.1 | 21 days from the notice of completion |
| Kerala (municipalities) | KMBR 2019, rule 20(3) | 15 days, then deemed issued |
| Kolkata | KMC Building Rules 2009, rule 28 | Inspection within 15 days, certificate within 10 days of it |
| Tamil Nadu | TNCDBR 2019, rule 20(10) | 30 days |
| UP development authorities | Model Byelaws 2025, 2.9.3 | Deemed approved if not rejected within 8 working days |
| Noida | Building Regulations 2010, 20.1.1 | 90 days, after which the owner intimates the Authority |
| Telangana | BuildNow timelines | Not required, instant, or 21 days, by plot size and height |
Your architect or engineer usually files, because the portals are built around a licensed professional's login.
| City | Authority and portal | Final certificate | Guide |
|---|---|---|---|
| Mumbai | MCGM, AutoDCR | OC cum BCC | Mumbai |
| Thane | TMC, BPMS | Occupancy certificate | Thane |
| Pune | PMC, AutoDCR | Occupancy certificate | Pune |
| Nagpur | NMC, BPMS | Occupancy certificate | Nagpur |
| Nashik | NMC, BPMS | Occupancy certificate | Nashik |
| Ahmedabad | AMC or AUDA, eNagar | BU permission | Ahmedabad |
| Surat | SMC or SUDA, eNagar | BU permission | Surat |
| Vadodara | VMC or VUDA, eNagar | BU permission | Vadodara |
| Bengaluru | GBA, single-window construction permits | Occupancy certificate (small homes exempt) | Bengaluru |
| Hyderabad | GHMC, BuildNow | Occupancy certificate | Hyderabad |
| Chennai | GCC or CMDA, TN Single Window Portal | Completion certificate | Chennai |
| Coimbatore | CCMC, TN Single Window Portal | Completion certificate | Coimbatore |
| Delhi | MCD, Online Building Plan Approval (NDMC and DDA run their own) | Completion-cum-occupancy certificate | Delhi |
| Noida | Noida Authority, Online Completion Certificate | Occupancy certificate | Noida |
| Lucknow | LDA, Building Plan Approval System | Completion certificate | Lucknow |
| Kolkata | KMC | Completion certificate | Kolkata |
| Kochi | Kochi Corporation, K-SMART | Occupancy certificate | Kochi |
| Thiruvananthapuram | Corporation, K-SMART | Occupancy certificate | Thiruvananthapuram |
| Indore | IMC, ABPAS 3.0 | Occupancy certificate | Indore |
| Jaipur | JDA, online citizen services | Completion and occupancy certificates | Jaipur |
Our Gurugram and Bhopal guides are coming soon.
Most OC delays start in the drawings. Our guide to the drawing set your architect should hand over explains what the sanction and completion plans contain. To budget the build, try the MOA home cost calculator.
The authority that sanctioned the building plan: the municipal corporation, development authority or local body secretary. The completion notice that comes before it is usually signed by your architect or licensed engineer.
Under the RERA Act, a completion certificate certifies that the project was built to the sanctioned plan, and an occupancy certificate permits occupation, with water, sanitation and electricity provided. Local rules may issue one, the other, or a combined certificate.
The Supreme Court directed in December 2024 that banks and financial institutions should sanction loans against a building only after verifying its completion or occupation certificate. Expect your lender to ask for it.
It depends on the rules: 7 working days in Mumbai, 15 days in Kerala municipalities, 21 days under UDCPR and in Gujarat, 30 days in Tamil Nadu, if the file is complete and the building matches the plan.
No. A possession letter is the builder's letter handing you the flat; the OC is the authority's permission to occupy the building. Under the RERA Act you take possession within two months of the OC.
Find a COA-verified architect on MOA who has filed for completion in your city: open MOA's architects directory and choose your city in the city filter.