Due diligence for a builder floor refers to the complete verification of a property's legal title, approvals, encumbrances, and pending dues before you complete the purchase. According to the Transfer of Property Act 1882 and the Registration Act 1908, a buyer must ensure the seller has a clear and marketable title, and in Karnataka, the sub-registrar requires an encumbrance certificate (EC) as part of registration. A builder floor is an independent unit within a low-rise building, often built on a separate plot, and unlike an apartment in a large complex, it may not fall under RERA's definition of a project, making your own due diligence even more critical.
What exactly is a builder floor and why is it different from an apartment?
A builder floor is a single-floor dwelling within a building that usually has two to four floors. The builder constructs the building on one plot and sells each floor to a different buyer. Each floor has its own entrance and often its own khata, which is the property record maintained by the Bruhat Bengaluru Mahanagara Palike (BBMP).
This is different from an apartment in a multi-storey complex, where you buy undivided share of land and a specific unit, and the whole project is regulated by RERA (Real Estate Regulatory Authority). Builder floors, especially those on smaller plots, are frequently built and sold without RERA registration because the number of units is below the threshold. That means you don't have the same statutory protection, and the responsibility falls on you to verify everything yourself.
In my 20 years of practice, I've seen buyers assume that a builder floor is just like an apartment. They are surprised when they learn there is no RERA complaint they can file, and the builder has no obligation to register the project. Your due diligence is the only shield you have against a faulty title or an illegal construction.
How do you verify the title of a builder floor in Bangalore?
Title verification is the backbone of due diligence. You need to trace the ownership of the land and the building from the original grant or sale down to the current seller. This is done by examining the chain of sale deeds, which are the documents that transfer property from one owner to another.
You also need to check the mother deed, which is the original document that created the property or the first sale from the original owner. For a builder floor, the mother deed is usually the sale deed from the landowner to the builder, or the registered lease if it is leasehold land. The father deed is the document that the current seller relies on to prove his ownership.
In Bangalore, you must also verify the khata, which is the BBMP record that shows who is responsible for paying property tax. A property can be either A khata or B khata. A khata means the building has all approvals and is fully legal. B khata is for properties that do not have proper sanctions or are on revenue land, and banks generally do not lend on B khata properties.
I tell my clients: never accept the seller's word that the khata is A. You must see the khata certificate and also check if the property tax is paid in the seller's name. A mismatch is a red flag.
What is an encumbrance certificate (EC) and how do you get one in Bangalore?
An encumbrance certificate, or EC, is a record of all registered transactions on a property for a specific period. It shows sales, mortgages, gifts, or any other legal dealings that affect the property. In simpler words, it tells you whether the property has any unpaid loan, a lien, or a court order attached to it.
You can get an EC from the sub-registrar office where the property is located, or online through the Kaveri portal of the Karnataka government. You need to provide the property's survey number, khata number, or the previous deed reference. You should request ECs for at least the last 13 years, but if the property is older, go back to the last 30 years or more. The cost is nominal, typically around 200 to 300 rupees per year of search.
In 2025, Karnataka introduced a system where you can get an EC with a digital signature. But I advise my clients to also get a physical copy from the sub-registrar, because online records may not show entries that are pending in the registrar's book. A client of mine once relied solely on an online EC and missed a mortgage that was registered a day before. The sub-registrar's manual search caught it.
What documents do you need to collect for a builder floor purchase?
Before you finalize any builder floor, you must collect and review the following documents. This list is what I give every client.
- Mother deed and all subsequent sale deeds (chain of title)
- Latest EC covering at least 13 years
- Khata certificate (A khata) and latest property tax paid receipts
- Approved building plan from the BBMP or the local planning authority
- Completion certificate or occupancy certificate, if the building is completed
- Commencement certificate, if the building is under construction
- No-objection certificate (NOC) from the bank if there is an existing loan on the property
- RERA registration, if applicable (for projects with more than 8 units or above a certain area)
- Previous owner's identity and address proof
- Any court orders or tax dues certificates from the BBMP
If the property is on leasehold land, you need the lease deed and the NOC from the concerned authority like the BDA or the KIADB. This is often forgotten, and it is a huge mistake.
How long does due diligence for a builder floor take?
In a normal case, a proper due diligence should take at least 10 to 15 days. That includes the time to obtain ECs, verify documents with the sub-registrar, and check the khata with the BBMP. But in Bangalore, the process can be delayed because of slow government offices.
At Legal Brigade, we usually return a title opinion in two to three days because we know exactly which offices to approach and which documents are critical. But that is after we receive all the documents from you. If you need an urgent EC, we can get it done in a day by paying the urgent fee, which is double the normal fee.
Do not let a seller rush you. If a builder or seller says 'the token advance is refundable only if you close within a week', that is a pressure tactic. In my experience, genuine sellers allow at least two weeks for due diligence. If they refuse, walk away.
What happens if you skip due diligence on a builder floor?
I have seen the consequences of skipping due diligence more times than I care to count. One client bought a builder floor in Electronic City at a great price. He was so happy with the deal that he didn't check the EC. Six months later, the bank that had financed the builder's construction came to auction the property because the builder defaulted. The mortgage was registered years ago and the EC would have shown it immediately.
Another case involved a builder floor in Whitefield. The buyer's lawyer (not from my office) did a quick check and missed that the building was constructed on land that was earmarked for a park in the revenue records. The BBMP issued a demolition notice a year later. The buyer lost the entire investment.
These are not rare cases. In Karnataka, a significant number of properties have some defect or the other. A proper due diligence is not an expense; it is your insurance against a financial disaster. The cost of a lawyer's due diligence is a fraction of the property value, and it can save you from losing crores.
How much does due diligence cost in Bangalore in 2026?
The cost of due diligence varies. If you do it yourself, you will pay for ECs (about 200-300 per year), khata verification (free if you visit the BBMP office), and your time. But self-verification is risky because you may not know what to look for.
If you hire a professional like Legal Brigade, our fees are flat and transparent. For a builder floor, our due diligence package typically starts at around 15,000 to 25,000 rupees, depending on the complexity and the number of years of EC you need. This includes title verification, EC analysis, khata check, and a written opinion. Large law firms may charge 50,000 or more, but we keep it affordable because we believe every buyer deserves a safe purchase.
When you compare this to the stamp duty and registration, which in Karnataka is 5% stamp duty plus 1% registration on properties above 45 lakh (Karnataka Stamp Act schedule, 2025), the due diligence cost is less than 1% of the property value. It is a small price to pay for certainty.
What are the red flags you should look for during due diligence?
During your review, watch out for these warning signs. If you see any of them, stop and consult a lawyer before proceeding.
- Gaps in the chain of title, meaning there is a missing sale deed or a transfer that is not registered
- An EC that shows a mortgage or a lien that has not been discharged
- A B khata or no khata at all
- Building plan that does not match the actual construction
- No completion certificate, especially for a ready-to-move property
- Seller refuses to provide documents or delays the process
- Property is on land that is not zoned for residential use
- Power of attorney sale, where the seller is not the registered owner
Power of attorney sales are a common trap. The seller claims he has the owner's power of attorney, but in many cases the POA is not registered or is revoked. In 2021, the Supreme Court (in Suraj Lamp & Industries Pvt Ltd v. State of Haryana) held that a sale through a mere power of attorney is not a valid transfer of title. You must ensure that the sale deed is executed by the actual registered owner.
How do you verify khata and property tax for a builder floor?
Khata and property tax are the basic records of a property. You need to verify that the khata is in the name of the seller and that there are no arrears. You can check the khata status online on the BBMP website using the khata number. But the online record may not show the latest transactions, so a physical verification at the BBMP ward office is recommended.
Also check the property tax paid receipts for the last few years. If the tax has not been paid, the BBMP can attach the property. You do not want to inherit someone else's tax debt.
A khata is not proof of ownership, but it is strong evidence of possession and tax liability. In case of a dispute, the khata helps establish who has been in possession and paying taxes.
What is the difference between A khata and B khata for a builder floor?
In Bangalore, properties are classified as A khata or B khata. A khata is issued for buildings that have all approvals, such as sanctioned plan, completion certificate, and conforming land use. B khata is for buildings that do not have these approvals, or are on revenue land, or violation of building rules.
The difference matters because banks do not give home loans on B khata properties. Also, B khata properties may face legal action from the BBMP, including demolition. Most buyers prefer A khata, but in some areas, B khata is common. If you are buying a B khata property, you must get a legal opinion on the risks and the possibility of regularisation.
| Feature | A Khata | B Khata |
|---|---|---|
| Approvals | Complete building plan and occupancy | No or partial approvals |
| Bank loan | Easily available | Difficult or impossible |
| Legal risk | Low | High, includes demolition notice |
| Property resale | Easy | Difficult, lower price |
| BBMP services | Full services | Limited or no services |
If you are considering a B khata property, get a written opinion from a lawyer on the chances of regularisation. In 2020, the Karnataka government introduced a scheme to regularise certain B khata properties, but it is not a guarantee.
What approvals does a builder floor need from the BBMP?
A builder floor, like any building, needs a sanctioned plan from the BBMP or the local planning authority before construction. After completion, it needs a completion certificate or an occupancy certificate. These approvals ensure that the building complies with the building bye-laws, setbacks, and structural safety.
If the building is under construction, check the commencement certificate, which is the approval to start construction. Also verify that the number of floors and the layout match the plan. A common violation is building an extra floor without approval.
In 2022, the BBMP issued a circular that all buildings above a certain height must have a fire NOC. For a builder floor of three or four floors, this may not apply, but it is good to check.
If the approvals are not in place, you cannot get a loan, and you may face penalties. The property may also be considered unauthorised, and the BBMP can order demolition. Do not rely on the builder's assurance that approvals are 'in process'.
How do you verify if the builder has any pending loans on the property?
The EC will show any mortgage or loan that is registered against the property. But some loans are not registered, like a simple loan against the property under an unregistered agreement. To be safe, ask the seller for a no-objection certificate from any bank from which he has taken a loan. If the builder has a construction loan, the bank will have a lien on the property, and the NOC is essential.
Also check the record of rights (RTC) and the mutation register. Mutation is the process of updating the government records to reflect the current owner. If the mutation is not done, the revenue records will show the previous owner, which can cause problems later.
In Karnataka, you can check the RTC online on the Bhoomi portal. The RTC shows the cultivator or occupant of the land, and any entries regarding loans or other interests. A discrepancy between the RTC and the sale deed is a red flag.
What is the role of a lawyer in due diligence for a builder floor?
A lawyer who specialises in property can save you from making a costly mistake. He will not just look at the documents, but also interpret them in the context of the law. For example, a sale deed may have a clause that restricts the use of the property, or an EC may show a mortgage that was discharged but not recorded properly.
At Legal Brigade, we provide a detailed title opinion that states whether the title is clear and marketable. We also flag any risks and suggest steps to cure them. This opinion is useful when you apply for a home loan, as banks often require a lawyer's certification.
You may think you can save money by doing it yourself, but in a complex market like Bangalore, the risk is too high. In the last year alone, I have seen over 20 cases where a buyer lost money because they skipped a professional check.
How does due diligence differ for a resale builder floor versus a new one?
If you are buying a new builder floor directly from the builder, you need to verify the title of the land and the builder's approvals. You also need to ensure that the builder has not mortgaged the property to a bank, which is often the case.
If you are buying a resale builder floor, you need to check the title of the current owner, not just the builder. The chain of title becomes longer, and there may be issues like unpaid maintenance or property tax from the previous owner. You also need to check if the previous owner has obtained a completion certificate and whether there are any structural defects.
In both cases, you must ensure that all dues to the BBMP, the electricity board, and the water supply board are cleared. If there are dues, they will become your responsibility after the transfer.
What is the difference between a sale deed, a mother deed, and a title deed?
A sale deed is the document that transfers ownership from the seller to the buyer in a specific transaction. The mother deed is the first deed in the chain of title, which establishes the origin of the property. The title deed is a general term that refers to any document that proves ownership.
For a builder floor, the mother deed could be the sale deed from the original landowner to the builder, or the lease deed from the government to the landowner. The title deed is the entire chain of documents that proves the seller's ownership.
| Document | Purpose | Importance |
|---|---|---|
| Sale Deed | Transfers title in a specific transaction | High - the actual document that transfers the property to you |
| Mother Deed | Establishes the origin of the property | High - without it, you cannot trace the title |
| Title Deed | Generic term for any document proving ownership | Medium - includes all deeds in the chain |
Make sure you get a copy of the mother deed and all intermediate sale deeds. If any document is missing, you may have a break in the chain, which can invalidate the title.
What are the legal consequences of buying a builder floor without due diligence?
If you buy a property with a defective title, you could lose the property entirely. The original owner may come forward with a prior claim, and you may have to fight a court case that could take years. In Karnataka, civil suits for property disputes can take 10 to 15 years to resolve, as per court statistics from 2023.
You may also face criminal charges if the property is involved in a fraud. For example, if the seller has sold the same property to multiple buyers, you may be a victim of cheating, but you will still have to go through the legal process to recover your money.
Even if you do not lose the property, you may have to pay penalties for unauthorised construction, property tax arrears, or conversion charges. These can add up to a significant amount.
What should you do if due diligence reveals a problem?
If you find a problem during due diligence, do not panic. Some issues can be fixed. For example, if there is a mortgage that has been repaid but not discharged, you can get a discharge deed from the bank. If there is a minor deviation in the building plan, you may be able to get it regularised by paying a fine.
But if the problem is serious, such as a disputed title or an illegal construction, you should walk away. There are plenty of properties in Bangalore, and you will find another one. Do not let your emotions or the fear of losing a token advance force you into a bad deal.
In some cases, you may be able to negotiate a lower price because of the defect. But that is only if you are willing to take the risk and have a lawyer to guide you.
What are the common mistakes buyers make during due diligence?
The most common mistake is not checking the EC for the full period. Another is not verifying the khata with the BBMP office. Some buyers rely solely on the builder's documents without cross-checking with the sub-registrar.
Another mistake is not checking the property physically. Sometimes the documents are fine, but the construction is not as per the plan. You should visit the property and compare it with the sanctioned plan.
Also, many buyers forget to check if the property is under any litigation. A simple court record search at the civil court can reveal if there is a case pending. This is often overlooked.
How can Legal Brigade help you with due diligence for a builder floor?
At Legal Brigade, we have been doing due diligence for over 20 years. We know exactly what to look for in a builder floor, and we have seen every kind of problem. Our service includes a thorough title opinion, EC analysis, khata check, and document verification. We also assist with registration and provide ongoing support.
We usually return a title opinion in two to three days because we have a streamlined process and contacts in the sub-registrar offices. Our fees are flat and transparent, and we do not charge for a basic consultation. If you are planning to buy a builder floor in Bangalore, book a free property consultation with us before you sign anything.
You can also check our more property buying guides for detailed information on other aspects. And if you need a property document verification in Bangalore, we are ready to help.
What is the final step in due diligence before you register the sale deed?
After all the checks are complete, the final step is to ensure that the sale deed is drafted correctly and that all the terms are as agreed. The deed should include the correct property description, the total consideration, and the schedule of the property. It should also mention that the seller has clear title and has no claims against the property.
Before registration, you should also obtain a fresh EC that shows that there are no new encumbrances after the date of the agreement. This is important because the seller could create a mortgage after the agreement, and you would not know it unless you check the EC again.
Once you are satisfied, you can proceed with the registration. You will have to pay stamp duty and registration charges at the sub-registrar office. After registration, the property is legally yours.
Remember, due diligence is not a one-time task. It is a process that you must follow carefully. If you have any doubts, consult a professional. It is better to spend a little now than to lose everything later.
Frequently Asked Questions
What exactly is due diligence for a builder floor?
Due diligence for a builder floor means verifying the legal health of the property before you commit money. I check the seller's title, the mother deed, the chain of sale deeds, the encumbrance certificate, the khata, the mutation records, and the building approvals. Over the last 20 years, I have seen many buyers skip this and later face disputes over ownership or illegal construction. You need to know who really owns the land and whether the floor you are buying can be legally sold to you.
How much does property title verification cost in Bangalore?
In Bangalore, a thorough title verification for a builder floor typically costs between Rs 10,000 and Rs 25,000 depending on the complexity of the property history. Some lawyers charge a flat fee, others charge a percentage of the property value, but I always recommend a fixed, transparent fee. For a standard builder floor, you can expect to pay around Rs 15,000 to Rs 20,000 for a complete check including a detailed report. It is a small price compared to the risks of a defective title.
How long does a property due-diligence check take?
A standard due-diligence check for a builder floor in Bangalore usually takes 3 to 7 working days. The timeline depends on how quickly the sub-registrar offices provide the encumbrance certificate and how old the property records are. In my practice, I often deliver a preliminary report within 48 to 72 hours if the documents are clear and complete. But if there are gaps in the title chain or missing approvals, it may take longer to trace the records.
Can I do property verification myself or do I need a lawyer?
You can do a basic check yourself by obtaining the EC from the sub-registrar and looking at the khata, but a lawyer adds critical analysis. In 20 years, I have seen buyers miss subtle defects like a forged signature in an old sale deed or an unregistered agreement that breaks the title chain. A lawyer knows which documents to pull, how to read the EC for pending transactions, and what to look for in encumbrance periods. The fee is worth it for the security it brings.
What documents should I ask for before buying a builder floor?
Before you buy a builder floor, ask for the mother deed, all sale deeds from the original owner to the current seller, the khata certificate and extract, the mutation register extract, the encumbrance certificate for the last 30 years, occupancy certificate, and building plan approval from the BBMP or the local authority. Also ask for the tax paid receipts and a copy of the society or association registration if any. In my experience, if the seller hesitates to give these, that is a red flag.
What is an encumbrance certificate and why is it important?
An encumbrance certificate, or EC, is a record of all registered transactions related to a property. It shows sales, mortgages, gifts, leases, and any other registered documents. I always check the EC for at least 13 years, but for a builder floor I prefer 30 years to spot any unreleased mortgage or a pending litigation. A clean EC does not guarantee a clean title, but a suspicious entry like a mortgage that was never discharged is a serious warning. Without an EC, you are buying blind.
What are the common legal defects in builder floors that due diligence catches?
The most common defects I see are incomplete title chains, unapproved floor plans, missing occupancy certificates, and properties built on agricultural land that was never converted. Also, some builder floors are built on land with multiple owners, and one co-owner may not have signed the sale deed. Due diligence catches these before you pay the advance. In one case, a buyer had paid 20 lakh as advance only to find that the floor was on a road widening zone; my check saved him from losing that money.
If you are about to put your hard-earned money into a builder floor, do not skip the legal check. I have seen too many deals fall apart because the buyer ignored the paperwork. At Legal Brigade, we usually complete a full title verification in two to three days at a flat, upfront fee that we tell you before we start. Send us the sale deed, the mother deed, the EC, and the khata, and we will tell you exactly where you stand. If you have any doubts, book a free property consultation and we will walk you through it.
Written by Advocate Raghavendra S C, a Bangalore-based property lawyer with 20+ years of practice in property title verification, due diligence, registration, and civil litigation across Karnataka courts and sub-registrar offices. For a property title check or due-diligence opinion in Bangalore, contact Legal Brigade at legalbrigade.co.in.