Key Points
- A Completion Certificate (CC) is not the same as an Occupancy Certificate (OC) — know the difference before you sign anything
- Your CC tells you what the builder is legally claiming is “done” — which directly affects what your interior designer can and can’t touch
- Check the sanctioned plan vs actual carpet area before finalizing your interior budget
- Structural changes (breaking walls, moving plumbing points) may need builder or society approval even after possession
- Utility connections (water, power, sewage) tied to your OC status can delay your renovation start date if not verified early
- Get your CC, sanctioned plan, and khata certificate together before your first designer meeting — it saves everyone time
I got possession of my first flat in Bangalore and had no idea what half the documents in my handover folder actually meant. Completion Certificate, Occupancy Certificate, khata, sanctioned plan — the builder’s team hands you a stack of papers, gets you to sign an acknowledgment, and moves on to the next handover. Nobody explains what any of it means for what you’re about to do next: design your home.
After 150+ homeowner conversations building Infrabob, I’ve realized this is one of the most skipped steps in the entire journey. People go straight from getting keys to calling designers, without understanding what their own paperwork is telling them. So let’s actually go through it.
Completion Certificate vs Occupancy Certificate — they’re not the same thing
A Completion Certificate (CC) is issued by the local municipal authority (BBMP, BDA, or the relevant panchayat) confirming the building was constructed according to the sanctioned plan submitted at the approval stage. It’s essentially the authority saying “yes, this matches what was approved on paper.”
An Occupancy Certificate (OC) goes a step further. It certifies the building is actually fit for people to live in — meaning water supply, electricity, sewage, and fire safety systems are functional and inspected. In a lot of Bangalore projects, especially large gated communities built in phases, builders hand over possession with only a CC and no OC yet. This is legal in many cases (OC can sometimes follow later per state rules), but it’s not something builders volunteer clearly.
Why this matters for you specifically: if your OC is pending, you may run into slower utility connections, restrictions on certain modifications, and in some cases delays getting your renovation labor and material vendors past the society gate, since many RWAs require an OC on file before issuing full construction passes. Ask your builder directly: “Do I have a CC or an OC?” Don’t accept a vague answer. Get it in writing if you can.
What the CC tells you about your actual space
Your CC references the sanctioned building plan — the exact layout the municipal authority approved before construction began. This is the document worth comparing against what you were shown in the sample flat, and more importantly, against what you’re actually standing in right now.
Minor variances of a few inches here and there are normal and rarely worth fighting over. But there are a few things worth actually measuring against the sanctioned plan before you finalize any interior budget:
- Carpet area — the number that determines your true usable space and drives your per-square-foot interior costing
- Balcony enclosure status — whether it’s marked “open” or “enclosed” on the sanctioned plan, since this affects whether you can legally close it in later
- Utility area layout — position of the wash area, especially in 2BHK and 3BHK units where builders sometimes shift this between tower blocks in the same project
I’ve heard from a few homeowners in Sarjapur Road and Whitefield projects where balcony areas shown as “open, spacious sit-out” in marketing brochures were actually marked “enclosed” or partially covered in the sanctioned plan — which changes what you’re legally allowed to do with that space during your interior work. This is exactly the kind of detail a good designer should be flagging in your first site visit, not three weeks into the project when it’s expensive to unwind.
Small tangent here, but it’s relevant: this is one of the reasons we built Infrabob’s designer verification process the way we did — every designer on the platform has walked through actual site visits and understands how to read a client’s paperwork before quoting, not just eyeball the space and throw a number at you. It sounds basic, but a surprising number of homeowners we’ve spoken to said their first designer never asked for these documents at all.
What you legally can and can’t change
This is the part that trips people up most, and it’s worth being precise about.
Once your building has a CC, any structural deviation from the sanctioned plan technically needs fresh approval from the municipal authority or your builder/society, depending on what’s being changed. This includes:
- Breaking or relocating load-bearing walls
- Altering the external facade (changing window sizes, closing balconies visible from outside)
- Moving plumbing stack positions between floors, since these are usually shared vertical lines across units
- Changing electrical load beyond what your sanctioned connection supports
In practice, enforcement varies a lot depending on the builder, the society, and even the specific BBMP ward. Most everyday interior work — false ceilings, modular kitchen and wardrobe units, non-structural partitions, standard electrical rework, flooring — doesn’t touch any of this and needs no separate approval.
But if your renovation plan includes knocking down a wall between the kitchen and living room, converting a study into an extra bedroom by adding a partition wall, or moving a bathroom’s plumbing point, get clarity from your builder or RWA first. A designer who quotes you on this kind of structural change without asking whether it’s even permitted is skipping a step that can cost you a stop-work notice mid-project — which is a far more expensive problem than a delayed start.
Bring these three documents to your first designer meeting
- Completion Certificate (or OC, whichever you currently have)
- Sanctioned building plan for your specific unit, not just the project brochure layout
- Khata certificate — your property tax record, useful for confirming your unit’s legal description matches what’s on your other paperwork
A good designer will use these to sanity-check the space before quoting anything. It also signals to them that you’re an organized, serious client — and from conversations with our designer partners on Infrabob, homeowners who show up with this paperwork tend to get more accurate first quotes and faster turnaround on design proposals, simply because the designer isn’t spending the first meeting untangling basic facts about the space.
If you’ve just gotten possession and haven’t figured out your next step, this is usually where we come in. Infrabob matches you with 3 verified designers based on your actual space, budget, and possession stage — no random contractor calls, no commission games, completely free for homeowners. Drop us a message on WhatsApp and we’ll get you sorted.