OC and CC Explained: Occupancy vs Completion Certificate for Buyers

Anyone buying an apartment in India soon hears about the Occupancy Certificate (OC) and the Completion Certificate (CC). The names sound alike, yet the two papers do different jobs and come from different issuers. A buyer who does not know the difference can end up with legal trouble, a refused loan or even a building facing demolition.

This guide explains what each certificate is, how they differ, why they matter and how you can verify them before paying.

Occupancy Certificate (OC): meaning

An Occupancy Certificate, also called an Occupation Certificate, is issued by the local municipal body or development authority. It states that the building was constructed as per the approved plan and meets local building rules, safety norms and bylaws.

Main points about the OC

• Issuer: the local Municipal Corporation or Development Authority, for example BBMP in Bangalore, GHMC in Hyderabad or BMC in Mumbai
• Purpose: to certify that the building is safe to live in
• What it checks: that the building follows approved plans, fire safety norms, structural stability, sanitation, water supply and electricity connections
• Legal position: living in a building with no OC is technically illegal
• RERA rule: a developer has to get the OC before handing possession to buyers

Kinds of OC

• Full OC: given once the whole building is finished and compliant
• Partial OC: given for particular floors or units while the rest of the project is unfinished
• Temporary OC: valid for a limited time, usually 1-2 years, and subject to conditions

In short, the OC is the green light to live in the property lawfully. It is the municipal authority's stamp that the building meets safety and regulatory standards.

Completion Certificate (CC): meaning

A Completion Certificate comes from the architect or engineer who supervised the work. It states that the building was finished in line with the sanctioned plan and technical specifications.

Main points about the CC

• Issuer: a licensed architect or engineer, and not a government body
• Purpose: a professional's confirmation that what was built matches the approved plans
• What it checks: structural completion, construction quality and technical specifications
• Legal position: needed to obtain the OC and for property registration
• RERA link: a developer must submit the CC to get the OC

Contents of a CC

A CC normally contains:

• A statement that construction is complete as per the sanctioned plans
• Any deviations from the original plans
• A certificate of structural stability
• Compliance with building codes and technical standards
• The date the work was completed
• The seal and signature of the architect or engineer

You can think of the CC as a professional saying the building has been built correctly, and the OC as the government permitting people to live in it.

OC compared with CC

• Issued By · Occupancy Certificate (OC): Municipal Corporation / Development Authority · Completion Certificate (CC): Licensed Architect / Engineer
• Type of Authority · Occupancy Certificate (OC): a government body · Completion Certificate (CC): a professional consultant
• What It Certifies · Occupancy Certificate (OC): legal permission to live in the building · Completion Certificate (CC): construction finished as planned
• Order · Occupancy Certificate (OC): can be obtained only with a CC · Completion Certificate (CC): needed before an OC application
• Legal Force · Occupancy Certificate (OC): mandatory for occupation · Completion Certificate (CC): a professional certification
• Scope of Check · Occupancy Certificate (OC): compliance, safety and amenities · Completion Certificate (CC): technical conformity with plans
• RERA Position · Occupancy Certificate (OC): must exist before possession is handed over · Completion Certificate (CC): needed to get the OC
• If Missing · Occupancy Certificate (OC): illegal occupation and trouble with bank loans · Completion Certificate (CC): no OC can be issued, and registration is difficult
• Inspected By · Occupancy Certificate (OC): municipal inspectors · Completion Certificate (CC): the project's architect or engineer
• Renewal · Occupancy Certificate (OC): may need renewal, depending on the state · Completion Certificate (CC): issued once

How OC and CC connect

The usual order of events:

• The developer finishes construction
• The project architect issues the Completion Certificate (CC)
• The developer uses the CC to apply for the Occupancy Certificate (OC)
• The municipal authority inspects the building
• The municipal authority issues the OC
• Only after this may buyers lawfully occupy the property

Put simply, the architect's CC comes first and the municipality's OC second. The CC is needed to obtain the OC, and the OC is needed to occupy lawfully.

Reasons OC and CC matter to a buyer

1. Your right to live there

With no Occupancy Certificate, you have no legal right to live in the property. The municipality may technically ask you to leave, or levy penalties.

2. Getting a home loan

Banks and finance companies do not sanction home loans on properties that lack a valid OC, and for most lenders this is non-negotiable. See more on property due diligence for home loans.

3. Registering the property

Some states let you register a property without OC, but it brings complications, and many sub-registrar offices now ask for the OC first.

4. Water, power and gas

Permanent connections for water, electricity and gas are hard or impossible to get without OC. You might depend on temporary connections that can be cut at any time.

5. Resale value

Properties lacking OC fetch much lower prices on resale. Later buyers hesitate, and it is hard to find anyone willing to accept the risk.

6. Insurance

Many insurers decline to cover a building with no valid OC, or offer only limited cover.

7. RERA compliance

The RERA Act obliges developers to obtain the OC before they hand over possession. If a property has no OC, the developer has not met a legal duty.

Dangers of buying with no OC or CC

Short-term dangers

• Unlawful occupation: you live in what is technically an illegal structure
• No home loan: banks turn down applications that have no OC
• Utility trouble: obstacles in getting electricity, water and sewage connections
• No insurance: insurers may refuse to cover the property

Long-term dangers

• Demolition: a building that breaks norms can be pulled down, though this is rare for entire buildings
• Legal exposure: you may face action for occupying an unauthorized building
• Hard to resell: selling later is extremely difficult
• Rental problems: tenants may run into difficulties, which cuts rental income

Financial dangers

• Reduced value: properties with no OC sell at a 15-30% discount
• Fines: municipal authorities can impose heavy penalties
• Locked-in money: your funds sit in an asset that you cannot easily convert to cash

A real example

Several apartment complexes on the outskirts of Bangalore ran into serious trouble in 2023 after developers handed over possession without OC. Buyers could not get home loans disbursed or Cauvery water connections, and they received legal notices. Many had to fight long legal battles to get refunds or to compel developers to obtain the OC.

To read about related construction risks, see our guide on illegal construction and unauthorized building risks.

Checking whether a building has its OC and CC

Step 1: Ask the developer

Ask the developer or builder for certified copies of the OC and CC. Verbal assurances are not enough; get physical copies.

Step 2: Confirm with the municipal body

Visit your municipal corporation's office, or its website:

• Bangalore: the BBMP website has an OC search
• Hyderabad: the GHMC portal lets you verify OCs
• Mumbai: the BMC website has a building proposal search
• Pune: PMC's website holds building permission records
• Delhi: the MCD portals for different zones

Step 3: Look up the RERA website

For a project launched after RERA came into force (May 2017), go to your state's RERA website:

• Find the project by registration number
• Read the project details and completion status
• Confirm the OC status and date

Step 4: See the building yourself

Look for the OC displayed at the building entrance, since RERA requires developers to show OC certificates prominently. Note:

• The certificate number
• The date of issue
• The issuing authority
• Any validity period

Step 5: Bring in a professional

Think about hiring a property verification service or a legal expert to check the documents, especially for an expensive property. Verify all property documents before you finalize the purchase.

Details to check on an OC

• Certificate Number: write it down for later reference
• Date of Issue: should be recent, in line with the project's completion timeline
• Issuing Authority: make sure it is the right municipal body
• Property Details: address, survey number and builder's name must match
• Type: see whether it is full, partial or temporary
• Validity: some OCs carry an expiry date, which varies by state

Details to check on a CC

• Architect Details: name, registration number and signature
• Date of Completion: should fit the construction timeline
• Sanctioned Plan Number: cross-check it against the building approvals
• Deviations: see if any departure from the original plan is mentioned
• Structural Certification: ensure a structural engineer has also signed

Applying for an OC and CC

Completion Certificate (the developer's job)

• The project architect inspects the finished construction
• The architect checks compliance with the sanctioned plans
• The architect files the CC application with the local authority, enclosing: — a copy of the sanctioned building plan — construction photographs — a structural stability certificate — a fire safety compliance certificate
• The architect issues the Completion Certificate

Occupancy Certificate (the developer's job)

• The developer applies to the municipal corporation with: — the Completion Certificate — the sanctioned building plan — a structural stability certificate — a Fire NOC (No Objection Certificate) — a lift safety certificate where applicable — water supply and sewage connection certificates — an electrical safety certificate — environment clearance where applicable
• Municipal inspectors visit the site
• Inspectors check compliance with all regulations
• The municipality issues the Occupancy Certificate

Note: in most cases, getting the OC and CC is a legal duty of the developer and not of the buyer. In some older buildings and individual houses, however, the owners themselves may have to apply for the OC.

How long an OC takes

• Normal processing: 30-60 days after the CC is submitted
• Frequent delays: bureaucracy often stretches it to 3-6 months
• Fast-track: some states process faster for an extra fee

What an OC costs

• It varies with the state and the size of the property
• Typically 0.1% to 0.5% of property value
• It covers application fees, inspection fees and processing charges
• The developer pays it, and individual buyers do not

RERA's rules on OC and CC

The Real Estate (Regulation and Development) Act, 2016 made the OC compulsory before possession is handed over. RERA requires the following:

What RERA requires about the OC

• Possession only after OC: developers cannot lawfully hand over possession until the OC for that phase or tower is in hand
• Display: the OC must be shown prominently at the project site
• RERA website: developers must keep the OC status updated there
• Buyers protected: a buyer may refuse possession if the OC is unavailable
• Penalty: developers who hand over possession without OC face heavy penalties

Buyers' options under RERA

• Refuse possession: you may decline to take possession until the OC is given
• Compensation for delay: claim compensation when possession is delayed because the OC is missing
• Complaint: complain to the RERA authority about a non-compliant developer
• Refund: in some cases, ask for a refund with interest if the developer repeatedly fails to get the OC

To understand your rights better, read our comprehensive RERA Act guide.

The position after RERA

OC compliance has improved a lot since RERA, but problems remain:

• Projects from before RERA: many launched before 2017 still have no OC
• Small developers: smaller builders often delay the OC because of cost and compliance gaps
• Plotted developments: individual plot buyers often do not receive a layout OC
• Rural areas: RERA enforcement is weaker in tier-2 and tier-3 cities

How LegiScore verifies building approvals

A property verified through LegiScore has several aspects of building compliance checked by the AI platform, including OC and CC status:

The OC/CC verification process

• Municipal records check: OC status is confirmed with local municipal corporations through official records and public databases
• RERA cross-check: for RERA-registered projects, we look at project registration details and the OC submission status
• Document authentication: OC/CC documents you upload are analyzed for signs of authenticity
• Compliance scoring: building approval status is a main factor in the Compliance Risk part of the LPS Rating

What a LegiScore report contains

• OC status: whether the building or tower has a valid OC
• CC status: whether a completion certificate exists
• Risk level: the effect on the overall property rating, from AAA to C
• Red flags: a missing OC, an expired temporary OC or approvals pending
• Recommendations: whether to go ahead, negotiate or avoid the purchase

Effect on the LPS rating

A property without proper OC/CC usually gets:

• A low Compliance Score, which weighs heavily on the overall LPS rating
• A risk alert shown in the report summary
• A rating drop, potentially from AA to B or C depending on other factors

Do not gamble with a property investment. See your property's legal health with a free LPS rating today.

Good practice for buyers

Before booking

• Ask about OC/CC: question the developer about OC status and the expected timeline
• Check RERA: verify the project's registration and compliance status
• Visit the municipality: look through the building approval records on your own
• Read the agreement: see that the sale agreement has an OC handover clause

While construction goes on

• Follow progress: watch the construction milestones
• Verify the CC: when construction ends, confirm the CC has been obtained
• OC timeline: ask for the OC application and approval schedule in writing
• Stay in touch: join buyer groups so you can monitor the developer together

Before you take possession

• Insist on the OC: do not accept possession until a valid OC is provided
• Check authenticity: compare the OC with municipal records
• Get copies: obtain certified copies of both OC and CC
• Record everything: keep every certificate safe for future reference

After the purchase

• Keep them safe: store OC/CC copies with your other property documents
• Give the bank a copy: provide copies to your lender for the loan documentation
• Have them ready for resale: being open about them builds buyer confidence
• Track temporary OCs: if yours is temporary, note when the permanent OC arrives

For a full checklist of the documents to verify, see our property document verification guide.