Quick answer
- The all-in cost runs roughly 12–18% above the base price once GST, stamp duty, registration, charges and interiors are added.
- Before you pay a token, verify RERA registration, title deed, Encumbrance Certificate, Khata and (for ready homes) the OC.
- Get every promise in writing, avoid cash, and have a lawyer review the builder-buyer agreement.
Here is the mistake that catches almost every first-time buyer in Bangalore: they budget for the base price on the brochure, then discover the real number is lakhs higher. The base price is never the price. This checklist gives you the full all-in cost breakdown and the exact legal checks to run before a single rupee changes hands.
In this guide
What is the real all-in cost?
The quoted base price is only the starting point. Add these to get the number you will actually pay:
| Component | Typical range |
|---|---|
| Base price (agreement value) | 100% |
| GST (under-construction) | 1% (affordable) / 5% (other) |
| Stamp duty (Karnataka) | ~5% (lower slab under ₹45L) |
| Registration + cess | ~1–1.6% |
| Floor rise, PLC, parking, club, corpus | Varies, can be significant |
| Legal, loan processing, interiors | Budget separately |
As a rule of thumb, the all-in cost lands roughly 12–18% above the base price for an under-construction home. Compute this before shortlisting so you compare like with like.
Financial readiness checklist
- EMI stays under 40% of take-home income.
- Down payment (10–20%) plus registration and GST saved in cash.
- Credit score checked (aim for 750+); loan pre-approved.
- A 6-month emergency buffer preserved after the down payment.
Project & builder due diligence
- K-RERA registration verified on the portal; number matches the brochure.
- Builder's delivery track record and past-project reviews checked.
- Approved plan, commencement certificate and land-use in order.
- Amenities, timelines and penalty clauses confirmed in the agreement.
“Compute the all-in number before you fall in love with the flat — not after you have paid the token.”
Legal & title due diligence
This is the non-negotiable core. Before paying a token, verify:
- Title deed with a clear ownership chain.
- Encumbrance Certificate (EC) for 13–30 years, free of dues.
- Khata (A-Khata preferred — see our A-Khata vs B-Khata guide) and paid property tax.
- Occupancy Certificate (OC) for ready homes; Completion Certificate where applicable.
- NOCs from bank/authorities and, for apartments, the association's dues status.
Do this: Have a property lawyer review the title chain, EC and the builder-buyer agreement. It is the cheapest insurance you will ever buy.
Site-visit checklist
- Visit at different times — check light, ventilation, noise and traffic.
- Confirm construction stage matches the payment schedule.
- Test water supply, power backup and road access.
- Map daily needs: schools, hospitals, transit, groceries.
Payment & paperwork checklist
- Every charge and promise in writing on the allotment letter/agreement.
- Payments by traceable banking channels only — never large cash.
- Sale deed registered at the sub-registrar; stamp duty paid.
- Khata transferred to your name; tax records updated after registration.
Red flags to walk away from
- No RERA number, or a number that does not match the portal.
- Seller reluctant to share the EC, title or Khata.
- Pressure to pay a large token in cash ‘to hold the unit’.
- A ready building without a valid Occupancy Certificate.
New to all this? Pair this checklist with our step-by-step first-home guide.
Frequently asked questions
What is the all-in cost of buying a flat in Bangalore?
Beyond the base price, add GST (1–5% on under-construction), stamp duty (~5%), registration (~1%), plus floor-rise, parking, club, corpus and interiors. In total the all-in cost is typically 12–18% above the quoted base price.
What documents should I check before buying property in Bangalore?
At minimum: RERA registration, title deed, Encumbrance Certificate, Khata certificate and extract, latest property-tax receipts, approved building plan, and the Occupancy Certificate for ready homes. A lawyer should review the title chain and agreement.
What are the hidden costs when buying a home in Bangalore?
Common 'hidden' costs include GST, floor-rise and preferential-location charges, covered parking, club membership, maintenance corpus, legal and loan-processing fees, and interiors. Always ask for a full cost sheet before booking.
How do I verify if a project is RERA registered in Karnataka?
Search the project or builder on the official Karnataka RERA portal, and confirm the registration number printed in the brochure matches. The portal also lists approved plans, timelines and any complaints.
Should I buy an under-construction or ready-to-move home?
Ready-to-move homes avoid GST and delivery risk but cost more; under-construction homes can be cheaper with staged payments but carry timeline risk. Choose based on your budget, urgency and risk tolerance.
Is it safe to pay a booking amount before due diligence?
Pay only a small, refundable token through banking channels, and get the terms in writing. Complete title, EC, Khata and RERA checks before paying any substantial amount. Never pay a large token in cash.
Do I need a lawyer to buy a flat in Bangalore?
Strongly recommended. A property lawyer verifies title, EC, Khata and approvals, and reviews the builder-buyer agreement for one-sided clauses. The fee is small relative to the risk of a defective title.
BD
Bipasha Das
Marketing & AI Automation Manager, BricksGuru
Bipasha Das is the Marketing & AI Automation Manager at BricksGuru, with over four years of experience in real-estate marketing. She writes about Bangalore's property market, the home-buying process, and legal due diligence — turning complex property decisions into clear, practical steps for first-time buyers and NRI investors.
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