OC vs CC Under RERA: What Bengaluru Buyers Should See Before Taking the Keys

Picture the scene. The site manager hands over a bunch of keys and a welcome kit, and asks the buyer to sign a possession letter. The lift works, the lobby is lit, families are already moving in on lower floors. One document is missing from the folder: the occupancy certificate. In Bengaluru, as anywhere, that piece of paper is the difference between a finished flat and a building that is merely occupied.

The Real Estate (Regulation and Development) Act, 2016 does not replace local building laws, but it does define the two certificates buyers argue about, ties the builder's handover duties to them, and starts your own clock on taking possession. Here is what each certificate means under the Act, and what it triggers.

The short answer. Under RERA, a completion certificate, defined in Section 2(q), certifies that the project has been developed according to the sanctioned plan, layout plan and specifications, while an occupancy certificate, defined in Section 2(zf), permits occupation of a building and has provision for civic infrastructure such as water, sanitation and electricity. Section 11(4)(b) makes the promoter responsible for obtaining the completion certificate or the occupancy certificate, or both, as applicable, and making it available to allottees. Section 19(10) asks the allottee to take physical possession within two months of the occupancy certificate. The trade-off: the OC starts obligations on both sides, so a buyer who takes keys without seeing it gives up leverage, while one who waits too long after it is issued may be in breach.

What is the difference between a completion certificate and an occupancy certificate?

The Gazette of India text of the RERA Act defines both, and the definitions point in different directions.

Section 2(q) says a completion certificate means the completion certificate, or such other certificate by whatever name called, issued by the competent authority certifying that the real estate project has been developed according to the sanctioned plan, layout plan and specifications, as approved by the competent authority under the local laws. It is about conformity: was the project built as approved?

Section 2(zf) says an occupancy certificate means the occupancy certificate, or such other certificate by whatever name called, issued by the competent authority permitting occupation of any building, as provided under local laws, which has provision for civic infrastructure such as water, sanitation and electricity. It is about fitness to live in: may people occupy this building?

Both definitions say "by whatever name called" and "under the local laws". RERA does not issue either certificate. The competent authority under local law does. RERA attaches consequences to them.

What does RERA make the builder do about these certificates?

Section 11(4)(b) says the promoter shall be responsible to obtain the completion certificate or the occupancy certificate, or both, as applicable, from the relevant competent authority as per local laws or other laws in force, and to make it available to the allottees individually or to the association of allottees, as the case may be.

That is the core duty. If the builder asks you to take possession, the Act's language supports asking for the certificate to be made available to you individually. The Act then uses the OC as the starting point for several later duties.

Note the "if no local law applies" wording in the two Section 17 provisos. Where a local law sets its own period, that period governs. The Act's own timelines fill the gap where local law is silent.

When must you take possession after the OC?

Section 19(10) says every allottee shall take physical possession of the apartment, plot or building within a period of two months of the occupancy certificate issued for it. That is an allottee duty, not just a right.

It cuts both ways. A buyer should not take possession of an apartment before the OC has been issued without understanding the risk. But once the OC is issued, delaying possession beyond two months can put you on the wrong side of the Act. If you have genuine objections, such as incomplete work, record them in writing while you take possession, rather than refusing to take it at all. Our guide to the builder's obligations after possession covers what happens next.

Why does the completion certificate matter for RERA registration?

Because it marks the edge of the Act's reach for older projects. The first proviso to Section 3(1) says projects ongoing on the date the Act commenced, and for which the completion certificate had not been issued, had to apply for registration within three months of commencement. Section 3(2)(b) says no registration is required where the promoter had received a completion certificate for a project before the Act commenced.

For a resale buyer in an older Bengaluru building, that is why the completion certificate's date matters. It can tell you whether the project should have been registered under RERA at all. We explained the transition rules in our guide to pre-RERA and ongoing projects.

If you are shortlisting under-construction projects instead, our profile of JRC Wildwoods in Gattahalli is one example of the project detail to read alongside the promoter's declared completion timeline.

What if keys are offered before the OC is issued?

This is the hardest moment for a buyer, because the flat may look finished and the family may be paying rent elsewhere. The provisions discussed above tie the allottee's possession duty in Section 19(10) to the occupancy certificate, and tie the builder's documentation and conveyance timelines in Section 17 to the same certificate. An offer of keys without the certificate leaves those clocks unstarted.

What happens if you occupy before the certificate is issued is a matter of local law, which this guide does not cover. Before deciding, ask the builder to state in writing why the certificate is pending, which authority it has been applied to, and the date of application. Keep that reply.

The Act also gives you a remedy if the delay is real. Section 18(1) says that if the promoter fails to complete or is unable to give possession of an apartment in accordance with the terms of the agreement for sale, or duly completed by the date specified in it, the promoter is liable on demand to return the amount received with interest at the prescribed rate and compensation, if the allottee wishes to withdraw. The proviso says an allottee who does not intend to withdraw shall be paid interest for every month of delay until the handing over of possession.

Whether a handover without a certificate counts as possession "duly completed" under your agreement is a question the Authority decides on the facts. For a buyer, the practical point is simpler: do not let an informal key handover replace the written record. Write down the date you were offered possession, whether the certificate was available, and what you were told.

Section 19(4) gives the allottee a matching right to claim a refund with interest and compensation if the promoter fails to comply or is unable to give possession in accordance with the agreement. Read your agreement's possession clause alongside these sections before you sign any letter that says possession has been accepted.

What should you check on handover day?

Handover is the moment when the paper trail either holds or breaks. Bring this list.

1. Ask for a copy of the occupancy certificate, or the equivalent certificate under local law, before you sign any possession letter, as Section 11(4)(b) requires it to be made available to allottees.
2. Check that the certificate covers your tower or block, not only another phase of the project.
3. Ask whether a completion certificate has also been obtained, and get a copy if it applies to your project.
4. Note the OC date, because Section 19(10) asks you to take physical possession within two months of it.
5. Record any incomplete work or defects in writing on the day you take possession, rather than refusing possession outright.
6. Ask for the unit plan and common area plans that Section 19(5) entitles you to after physical possession.
7. Diary the conveyance and association document timelines in Section 17, and check which local law periods apply instead.

Frequently asked questions

What is the difference between an occupancy certificate and a completion certificate under RERA?

Section 2(q) defines a completion certificate as one certifying that the project has been developed according to the sanctioned plan, layout plan and specifications. Section 2(zf) defines an occupancy certificate as one permitting occupation of a building, as provided under local laws, which has provision for civic infrastructure such as water, sanitation and electricity.

Who has to obtain the occupancy certificate?

Section 11(4)(b) of the RERA Act makes the promoter responsible to obtain the completion certificate or the occupancy certificate, or both, as applicable, from the relevant competent authority as per local laws, and to make it available to the allottees individually or to the association of allottees.

How soon must I take possession after the OC is issued?

Section 19(10) says every allottee shall take physical possession of the apartment, plot or building within a period of two months of the occupancy certificate issued for it. If you have objections, record them in writing while taking possession rather than delaying beyond that period.

When must the builder register the conveyance deed?

Section 17(1) requires a registered conveyance deed within the period under local laws. Its proviso says that in the absence of any local law, the conveyance deed shall be carried out by the promoter within three months from the date of issue of the occupancy certificate.

Last updated 2026-11-14. PropNewz Team.