How do you use the property comparison calculator?
- Enter the price in lakh, the carpet area and the monthly maintenance for two or three flats. Leave Flat C blank to compare two.
- Pick the property type and set the down payment. The same loan terms apply to every flat, and each loan stays within RBI limits.
- Read which flat costs least per carpet sq ft, and which needs the least cash and the lowest monthly outgo. The table below shows every figure.
Why compare on carpet area, not the quoted price?
Carpet area is the usable floor area inside the walls, and RERA requires builders to sell by it. Two flats at a similar price can differ by 100 sq ft or more of usable space. Dividing the price by carpet area shows what each sq ft you can use actually costs. If a quote is on super built-up area, ask for the carpet area in writing before you compare.
How each figure is worked out
Price ÷ carpet areaStamp duty + 10% cess + 2% surcharge on the duty + 2% registrationDown payment (price − loan within RBI limits) + government chargesEMI on the loan + maintenanceWorked example: three flats around ₹ 1 Cr
Flat A is ₹ 1 Cr for 1,100 sq ft, Flat B ₹ 95 L for 1,150 sq ft and Flat C ₹ 90 L for 1,050 sq ft. Per carpet sq ft that is ₹ 9,091, ₹ 8,261 and ₹ 8,571, so B gives the most space for the money even though C has the lowest price.
With 25% down at 8.5% for 20 years, C needs the least cash (₹ 29,34,000) and has the lowest monthly outgo (₹ 63,078 with maintenance). B costs ₹ 1,63,000 more up front and ₹ 4,254 more a month, for 100 sq ft more carpet area.
Worked example: the ₹ 45 L first-sale step
For the first sale of a flat, stamp duty is 3% up to ₹ 45 L and 5% above it. A ₹ 45 L flat pays ₹ 2,41,200 in government charges; a ₹ 46 L flat pays ₹ 3,49,600. The extra ₹ 1 L of price costs ₹ 1,08,400 more in charges, so cash needed rises by ₹ 1,28,400 with 20% down.
What stamp duty and registration apply in Bengaluru?
On a sale deed in Bengaluru, Karnataka charges 5% stamp duty on the market value (Karnataka Stamp Act, Schedule Art. 20(1)), a 10% cess on the duty (s.3B) and, inside the Greater Bengaluru Area, a 2% surcharge on the duty (Greater Bengaluru Governance Act 2024, s.170). The registration fee is 2% (IGR notification of 29 Aug 2025, in force from 31 Aug 2025). Together that is 7.6% of the value. The first sale of a flat pays less duty: 2% up to ₹ 20 L and 3% above ₹ 20 L up to ₹ 45 L, so the total is 4.24% or 5.36%. Resale flats, plots and houses pay 5% at any price. Rates verified 18 Oct 2026 · confirm on Kaveri Online before registering.
What does this comparison leave out?
- Location, builder record, legal title and build quality. Use the builder trust score, property risk assessment and apartment quality score.
- GST on an under-construction flat, parking, club and other charges outside the price. Add them to the price, or see the hidden cost calculator.
- Rent and future price growth, which nobody can know in advance.
Frequently asked questions
Related answers and guides
- Rental Agreement Karnataka: Stamp Duty, Registration, Police
- New vs Ready Flats: Real Estate Consultancy Services
- Compare Two Apartments Side by Side: A Bengaluru Method
- Bangalore Property Rates per Sq Ft Area Wise: 2026 GV Table
Sources
- RBI loan-to-value limits: RBI Master Circular on housing finance.
- Stamp duty 5% (Schedule Art. 20(1)), first-sale flat slabs (Art. 20(2A)) and 10% cess (s.3B): Karnataka Stamp Act 1957, consolidated copy (DPAL); ₹ 35–45 L slab: Karnataka Stamp (Amendment) Act 2021.
- 2% surcharge on duty in the Greater Bengaluru Area: Greater Bengaluru Governance Act 2024, s.170.
- Registration fee 2%: IGR Karnataka, Table of Registration Fees (Notification RD/46/MNMU/2025) and IGR press note, 29 Aug 2025.
- Rates verified 18 Oct 2026 · confirm on Kaveri Online before registering.
- Carpet area definition: Real Estate (Regulation and Development) Act 2016, section 2(k).
- EMI: standard reducing-balance formula. Prices, areas and maintenance: your inputs.
Indicative figures from the numbers you enter, not advice to buy any property. For tax questions, please verify with your Chartered Accountant before acting. For documents and title, please consult a property lawyer before acting.
Comparing shortlisted flats in Bengaluru? Talk to an acre&key advisor.