Ravi had moved into his new flat in Bachupally for three months before he learned the building had no occupancy certificate. The water was on a tanker supply, the electricity was a temporary connection, and when he tried to sell two years later a cautious buyer walked away. The builder had a sanctioned plan and a slick brochure, but the one document that says a building was actually completed the way it was approved was missing. In Telangana, that document flows through a single system called TS-bPASS, and knowing how it works is one of the sharpest checks a Hyderabad buyer can run before paying.

The short answer. Building permission is the approval to construct, and the occupancy certificate, or OC, is the approval to live in a completed building, both issued by the local body through the TS-bPASS system. Under the TS-bPASS Act 2020, an OC is compulsory before occupying a building on a plot above 100 square metres or taller than 7 metres, and permanent water and electricity connections are released only on production of the OC. The trade off buyers miss is that a cheaper flat without an OC is not really cheaper, because the missing certificate resurfaces as tanker water, a temporary meter, and a weaker resale.

What is TS-bPASS and why does it matter to a buyer?

TS-bPASS stands for the Telangana State Building Permission Approval and Self Certification System, the online single window that the Greater Hyderabad Municipal Corporation and other local bodies use to grant building permissions and occupancy certificates. It replaced the older permission process and moved approvals, self certification, and OC applications onto one platform. For a buyer, the significance is simple: every legitimate approval for your building should be traceable through this system. If a builder cannot show you the sanctioned plan and the approval reference, that is a warning worth heeding before any token money changes hands. You can reach the system at the official TS-bPASS portal.

The system was built to compress a slow, discretionary process into a faster and more transparent one, with self certification for smaller and simpler projects and a common application form that pulls together the separate clearances a larger building needs. For a buyer, that transparency cuts both ways. It means genuine approvals leave a digital trail you can ask to see, and it also means there is no longer a good excuse for a builder to keep approval details vague. Treat any reluctance to share the sanctioned plan, the permission reference, or the OC status as information in itself.

What is the difference between building permission and an OC?

Building permission comes first and the occupancy certificate comes last, and they answer two different questions. Permission confirms that the plan the builder proposed was sanctioned before construction began. The OC confirms that the finished building actually matches that sanctioned plan, with the correct number of floors, setbacks, and use. A project can hold a valid building permission and still fail to get an OC, because the builder deviated during construction. That gap is exactly where buyers get hurt, which is why the OC, not the permission, is the certificate you should insist on before taking possession.

Is an occupancy certificate really mandatory in Hyderabad?

Yes. Under the TS-bPASS Act 2020, an occupancy certificate is compulsory before a building is occupied, and it is specifically required for buildings on plots larger than 100 square metres, about 120 square yards, or taller than 7 metres. The most concrete consequence for a resident is written into the framework itself: permanent water supply and electricity connections are provided only on production of the occupancy certificate. A flat occupied without an OC therefore tends to run on temporary or informal connections, which is both precarious and a red flag to any future buyer or lender. You can read the governing law in the bare Act published by the government at India Code.

Are any buildings exempt from permission and an OC?

Yes, but the exemption is narrow. To reduce paperwork for the smallest homes, the framework allows construction of a ground or ground plus one floor on a plot of up to 75 square yards without a separate building permission or occupancy certificate, subject to a nominal registration. This helps individual house builders on tiny plots, but it does not apply to the apartment projects most Hyderabad buyers are considering. If someone tells you an apartment building does not need an OC, treat that as incorrect until proven otherwise, because multi unit buildings on larger plots fall squarely within the mandatory zone. The exemption also does not become a loophole for a large project: you cannot split a big development into notionally small plots to escape the requirement, and any apartment marketed to multiple buyers will need both permission and an OC in the ordinary course. When a seller leans on the small plot exemption to explain a missing certificate, ask precisely how it applies to your specific building, and expect a clear answer.

How is the OC applied for and issued?

The OC application is filed online through TS-bPASS once construction is complete, and the local body verifies that the building matches the sanctioned plan before issuing the certificate. In practice the process is expected to conclude within a few weeks of a complete application, though deviations from the plan can stall it, since the builder must first regularise or correct the deviation. As a buyer this tells you two useful things. First, an honest builder should be able to produce the OC around the time of handover. Second, if the OC is delayed with vague explanations, the likeliest cause is a construction deviation that you want to understand before you commit.

It also helps to know what a deviation actually is, because not all are equal. A minor internal change may be regularised with a fee, while an extra floor or a built up encroachment on a setback can be far harder to legalise and, in some cases, impossible. The sanctioned plan is your reference point: if the building in front of you has more floors or less open space than the plan shows, the OC is at risk regardless of what the sales team promises. This is why matching the physical building to the sanctioned drawing, rather than trusting a glossy floor plan, is the single most valuable half hour a buyer can spend on site.

The approval checks to run before you pay

You do not need to be an engineer to verify approvals. You need the right documents and a willingness to cross check them. Work through this list before any large payment.

1. Ask for the sanctioned building plan and confirm it is attested by the local body.
2. Match the plan against the actual building for floors, setbacks, and use.
3. Get the building permission reference and trace it through TS-bPASS.
4. Insist on the occupancy certificate for a completed building before possession.
5. Confirm the property has permanent water and electricity, not temporary lines.
6. Check whether any deviation or regularisation is pending on the project.
7. Keep copies of every approval with your sale deed and payment records.

What should a buyer do if the OC is missing?

Pause, and treat the missing OC as unfinished business rather than a technicality. Ask the builder in writing when the OC will be issued and what is holding it up. If the answer points to a deviation from the sanctioned plan, understand that regularisation can cost money and is not guaranteed, and that until it is resolved the building is not cleared for permanent utilities. For an apartment, cross check the project's promoter registration as well, which we cover in our guide to verifying a Telangana RERA registration, since an OC problem and a registration problem often travel together. If you have already begun the purchase, our walkthrough of how registration works in Hyderabad shows where these documents fit in the closing.

None of this means every project without an OC in hand is a fraud, since certificates can genuinely lag completion by weeks. It means the OC is the single cleanest signal of whether a building is what it claims to be, and a buyer who insists on seeing it, or on a firm dated commitment backed by the RERA timeline, is simply refusing to carry the builder's risk.

Frequently asked questions

Is an occupancy certificate mandatory for a flat in Hyderabad?

Yes. Under the TS-bPASS Act 2020, an occupancy certificate is compulsory before a building is occupied, and it is required for buildings on plots above 100 square metres or taller than 7 metres. Apartment projects fall within this, so a completed building should have its OC before residents move in.

Can I get a water and electricity connection without an OC?

Permanent water supply and electricity connections are provided only on production of the occupancy certificate under the TS-bPASS framework. A flat without an OC usually runs on temporary or tanker arrangements, which is why the missing certificate is a practical problem for daily living, not just a paperwork gap, and a warning sign for buyers.

What is the difference between building permission and an OC?

Building permission is granted before construction and confirms the plan was sanctioned. The occupancy certificate is issued after completion and confirms the finished building matches that sanctioned plan. A project can hold valid permission yet fail to obtain an OC if the builder deviated during construction, so the OC is the more important document for a buyer.

Are small plots exempt from needing an OC in Telangana?

A ground or ground plus one floor home on a plot of up to 75 square yards can be built without separate permission or an OC, subject to a nominal registration. This narrow exemption is meant for very small individual houses and does not extend to apartment buildings on larger plots, which remain fully within the mandatory requirement.

Last updated 2026-08-12. PropNewz Team.