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Buying Property in Bangalore: Nine Common Mistakes and How to Avoid Them

By Bangaloreprop Editorial Team·26 October 2026·7 min read
Buying Property in Bangalore: Nine Common Mistakes and How to Avoid Them

Most problems in a Bangalore home purchase trace back to a handful of avoidable errors made early, before any money is paid. This guide sets out nine common mistakes, why each one costs buyers, and the simple check that prevents it.

1. Budgeting on the Base Price Alone

The price on a hoarding is the base price of the flat. The amount actually paid is higher, and the gap is large enough to upset a loan plan. On a new flat of Rs. 1 Crore, the main additions are these:

  • GST of 5% on an under-construction home, about Rs. 5 Lakhs
  • Stamp duty of 5% plus cess and surcharge (5.6% in all), about Rs. 5.6 Lakhs
  • Registration fee of 2%, about Rs. 2 Lakhs
  • Car parking, floor rise, clubhouse, deposits and advance maintenance, which the cost sheet itemises

Banks lend against the agreement value and not against taxes and registration, so these sums come from savings. A written cost sheet with every line, taken before booking, keeps the budget honest.

2. Paying Before Checking the RERA Registration

A project that needs RERA registration cannot be advertised or sold before it has a number. Paying a booking amount on a "pre-launch" offer without one leaves the buyer with little protection. The plans, the home count and the completion date are still open to change at that stage.

The check takes a few minutes. The Karnataka RERA portal carries the registration number, the promoter's name, the approved plan, the completion date and any complaints. The details on the portal should match what the sales team presents.

3. Skipping the Title and Khata Check

A clean title is the base of the whole purchase, and a builder's reputation is no substitute for reading the papers. A property lawyer should trace the ownership of the land for at least 30 years and read the encumbrance certificate. The lawyer should also confirm the land conversion and the sanctioned plan.

The khata needs equal care. An A khata property is on the main tax register and is accepted by banks, while a B khata property has gaps in its approvals. Within the city, an e-khata is now needed to register a sale, so its status should be known before an agreement is signed.

4. Comparing Flats on Super Built-Up Area

Two flats sold as 1,500 sq ft can differ by more than 100 sq ft in usable space. Super built-up area includes a share of lobbies, lifts and the clubhouse, and that share varies from project to project. Carpet area, as defined under the RERA Act, is the floor area inside the walls of the flat.

The fair comparison is the all-in price divided by the carpet area. That single figure shows what a buyer pays for space that can actually be used.

5. Judging a Locality on One Weekend Visit

A site visit on a Sunday morning shows a locality at its best. The same road at 9 am on a Tuesday, or after an evening of heavy rain, can look very different. Three checks give a truer picture:

  • Drive to the workplace and the school at the hours the trips will be made
  • Ask residents nearby about the water source: Cauvery supply, borewells or tankers
  • Visit after heavy rain to see how the approach road and the basement drain

Planned metro lines and roads add value only when they open. A purchase should work with the infrastructure that exists today, with future projects treated as a bonus.

6. Choosing a Builder by Name Alone

A well-known name lowers risk but does not remove it. Delivery records differ from project to project, even for the same developer. The RERA portal lists a promoter's other projects, their completion dates and the complaints filed against them.

A visit to a community the builder handed over three or four years ago is just as useful. The condition of the lifts, the paint and the common areas, and what residents say about repairs, show how the homes hold up.

7. Taking Possession Without the Occupancy Certificate

The occupancy certificate (OC) confirms that the building was completed as per the sanctioned plan. Without it, permanent water and power connections, the khata and a later resale all become harder. Some buyers still move in early because the rent on their current home is a burden.

The safer course is to link the final payment and possession to the OC in writing. The agreement for sale should also state the possession date and the interest payable for delay.

8. Stretching the Loan Too Far

A home loan runs for 15 to 25 years, and interest rates move during that time. An instalment that takes up most of the monthly surplus leaves no room for a rate rise, a job change or a medical cost. Buyers of under-construction homes may also pay rent and pre-EMI interest together for two or three years.

The EMI calculator shows the instalment for a given loan, rate and tenure. Running it again at a rate one percentage point higher is a quick test of how much strain the budget can take.

9. Skipping the Inspection and the Running Costs

A model flat shows the design and not the unit being bought. In a ready or resale home, the actual flat should be inspected for damp, cracks, plumbing leaks and electrical faults. A paid inspection costs little against the price of the home.

Running costs deserve the same attention. Monthly maintenance, property tax and the state of the association's reserve fund decide what the home costs to hold. In a resale, a no-dues letter from the association protects the buyer from the previous owner's arrears.

A Short Checklist

The nine points reduce to a short list that fits on one page:

  1. Get the full cost sheet and add taxes and registration.
  2. Confirm the RERA number on the state portal.
  3. Have a lawyer check the title, the approvals and the khata.
  4. Compare projects on price per sq ft of carpet area.
  5. Test the commute, the water supply and the drainage in person.
  6. Look at the builder's delivered projects.
  7. Tie possession to the occupancy certificate.
  8. Keep the instalment at a level the household can carry through a rate rise.
  9. Inspect the actual unit and ask for the maintenance figures.

Each step is small, and together they remove most of the risk from the purchase. Buyers comparing projects across Bangalore can also write to our team through the contact page for help with a shortlist.

Frequently Asked Questions

What is the most common mistake when buying a flat in Bangalore?+
Budgeting on the base price alone. GST, stamp duty, registration, parking and deposits add a large sum to the price, and most of it has to come from savings and not from the loan.
How much do taxes add to a Rs. 1 Crore flat in Bangalore?+
About Rs. 12.6 Lakhs on a new under-construction flat: GST of about Rs. 5 Lakhs, stamp duty with cess and surcharge of about Rs. 5.6 Lakhs and registration of about Rs. 2 Lakhs.
Is it safe to book a flat before RERA registration?+
No. A project that needs registration cannot be sold before it has a RERA number, and the plans and dates can still change. Waiting for the number on the Karnataka RERA portal is the safer course.
Why should flats be compared on carpet area?+
Carpet area is the usable floor inside the flat. Super built-up area adds a share of common spaces that varies by project, so price per sq ft of carpet area gives a fair comparison.
Is it a mistake to move in without an occupancy certificate?+
Yes. Without the OC, permanent water and power connections, the khata and a later resale become harder. Possession and the final payment are best tied to the OC in writing.

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