A ₹75 lakh flat in Chennai almost never costs ₹75 lakh. Once you add GST, stamp duty, registration, car parking, deposits and loan fees, the real figure can be 15–23% higher. Most buyers discover this only at the registration office. This guide breaks down every rupee using current 2026 rates.
+15–23%real cost above the base price of a new flat
6–9%stamp duty + registration, not the 11% many sites quote
0% GSTon ready-to-move and resale flats
≈ ₹29.7 Lcash needed upfront on a ₹75 lakh flat
Section 01The myth: “Chennai registration costs 11%”
Tamil Nadu charges 7% stamp duty + 4% registration = 11% on every flat.
TNREGINET’s official schedule is 7% + 2% = 9% for a standard sale deed, and just 6–7% for most new flats.
A standard sale deed carries 7% stamp duty and a 2% registration fee, calculated on the higher of the market value or guideline value. For new flats bought directly from the builder, stamp duty is charged in slabs on the composite value, plus the 2% registration fee:
On a ₹75 lakh new flat, the “11%” myth predicts ₹8.25 lakh in charges. The actual cost is about ₹5.25 lakh. Buyers who believe the myth over-budget by ₹3 lakh, or walk away from homes they could actually afford.
Buyers used to register the land share at 7% and the construction agreement at 1%. Tamil Nadu replaced this with a single sale deed on the flat’s composite value. The reduced slabs apply only to first sales, so new flats are now cheaper to register than resale flats.
From 1 April 2025, when every buyer is a woman, the registration fee drops from 2% to 1% on sale deeds valued up to ₹10 lakh. This mostly helps plot buyers in outer areas.
Rates can change. Always confirm the final figure with the Sub-Registrar or on tnreginet.gov.in before registration.
Section 02GST: the charge that depends on construction status
GST applies only to under-construction flats. Ready-to-move homes with a completion certificate and resale flats carry no GST.
Chennai counts as a metro, so the 1% rate needs both conditions. A ₹44 lakh flat with 65 sq m carpet area still attracts 5%. Always ask the builder for the carpet area in writing.
Section 03The “hidden” charges in your cost sheet
These rarely appear in advertisements but almost always appear in the final cost sheet. Ranges are typical across Chennai projects; check your project’s actual figures.
Section 04Worked example: a ₹75 lakh flat in Navalur
Here is the full picture for a typical 1,000 sq ft 2 BHK flat in OMR, bought three different ways:
| Cost item | Under construction | Ready to move | Resale |
|---|---|---|---|
| Base price | ₹75,00,000 | ₹75,00,000 | ₹75,00,000 |
| GST | ₹3,75,000 (5%) | — | — |
| Stamp duty | ₹3,75,000 (5%) | ₹3,75,000 (5%) | ₹5,25,000 (7%) |
| Registration | ₹1,50,000 (2%) | ₹1,50,000 (2%) | ₹1,50,000 (2%) |
| Car parking | ₹3,00,000 | ₹3,00,000 | Usually included |
| Corpus + maintenance | ₹1,23,000 | ₹1,23,000 | ~₹50,000 |
| Deposits, legal, loan fees | ₹1,50,000 | ₹1,50,000 | ₹1,25,000 |
| Brokerage | — | — | ~₹75,000 (1%) |
| All-in cost | ~₹89.7 lakh | ~₹86.0 lakh | ~₹84.3 lakh |
Ready-to-move saves the full GST, ₹3.75 lakh here. Builders often price ready units higher, so compare the all-in cost, not the base rate.
Under ₹50 lakh, new flats win on stamp duty. A ₹45 lakh new flat pays 6% (₹2.7 lakh); a ₹45 lakh resale pays 9% (₹4.05 lakh).
Resale looks cheapest on paper, but older buildings often need repairs, and loan approval can be slower.
Section 05What it really costs in 10 Chennai localities
Estimated all-in cost of a 1,000 sq ft under-construction flat at each locality’s current average rate:
View full table, including ready-to-move prices
| Locality | Base price | Under construction | Ready to move |
|---|---|---|---|
| Guduvanchery | ₹50.5 lakh | ~₹62 lakh | ~₹60 lakh |
| Kelambakkam | ₹54.5 lakh | ~₹67 lakh | ~₹64 lakh |
| Navalur | ₹62.5 lakh | ~₹76 lakh | ~₹73 lakh |
| Tambaram | ₹63.0 lakh | ~₹76 lakh | ~₹73 lakh |
| Medavakkam | ₹67.0 lakh | ~₹81 lakh | ~₹77 lakh |
| OMR (corridor avg.) | ₹72.5 lakh | ~₹87 lakh | ~₹83 lakh |
| Pallikaranai | ₹75.5 lakh | ~₹90 lakh | ~₹87 lakh |
| Sholinganallur | ₹81.0 lakh | ~₹96 lakh | ~₹92 lakh |
| Porur | ₹81.5 lakh | ~₹97 lakh | ~₹93 lakh |
| Perungudi | ₹110.5 lakh | ~₹130 lakh | ~₹124 lakh |
- Smaller budgets pay proportionally more. Fixed extras are a bigger share of a cheaper flat: about 23% in Guduvanchery versus about 17% in Perungudi.
- Under ₹50 lakh all-in is now rare. For 2 BHK flats in Chennai under 50 lakhs, target a base price of about ₹40 lakh, realistic in Guduvanchery and near Kelambakkam and apartments near SIPCOT Siruseri.
- Plan for the metro premium. For apartments for sale in Porur, flats for sale in Sholinganallur and other OMR metro station property, the jump to all-in cost is often close to ₹15 lakh.
Section 06The cash you need upfront: the biggest surprise
Under RBI’s loan-to-value norms, banks typically lend up to 80% of the property value for loans of ₹30–75 lakh, and 75% above ₹75 lakh. Stamp duty and registration are generally not covered by the loan. For the ₹75 lakh under-construction flat:
That is nearly double the ₹15 lakh most buyers expect from a “20% down payment”. Plan around this number before you book.
Section 07Home loan costs in October 2026
As of October 2026, SBI’s home loan rates range from 7.25% to 8.45%, linked to its EBLR of 8.15%. The RBI kept the repo rate at 5.25% in June 2026, and its October 2026 policy decision is due on 7 October. On a ₹60 lakh loan over 20 years:
That is how much a slightly higher rate costs over the loan. Your CIBIL score, employer category and the lender’s offer for your project all affect the rate you get.
Section 086 ways to reduce your all-in cost
Weigh ready-to-move
If the price gap is smaller than the GST saving, it wins. On a ₹75 lakh flat, a ready unit can cost up to ₹3.75 lakh more and still break even.
Stay under the slab
A new flat at ₹49.5 lakh pays 4% stamp duty; at ₹50.5 lakh it pays 5% on the whole value.
Negotiate the extras
Car parking, floor rise and corpus are often more flexible than the per-sq-ft rate, especially in new launch projects in Chennai.
Get carpet area in writing
It decides whether you pay 1% or 5% GST on an affordable flat.
Compare three lenders
Ask which banks have pre-approved the project; that usually means faster processing and better rates.
Verify RERA
Buying only RERA approved flats in Chennai protects your money if the project is delayed.
Section 09Frequently asked questions
What are the stamp duty and registration charges for a new flat in Chennai in 2026?
For a first sale from the builder: 4% stamp duty below ₹50 lakh, 5% between ₹50 lakh and ₹3 crore, and 7% above ₹3 crore, plus a 2% registration fee. Resale flats pay 7% plus 2%.
Is GST charged on ready-to-move flats in Chennai?
No. GST applies only to under-construction flats: 1% for affordable housing and 5% for others. Ready flats with a completion certificate and resale flats carry no GST.
How much extra should I budget above the flat’s price?
Budget 15–23% above the base price for a new flat, and 10–13% for a resale flat. Lower-priced flats sit at the higher end of that range.
Can I include stamp duty in my home loan?
Generally, no. Banks calculate the loan on the property value, so stamp duty, registration and most extras must come from your savings.
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Whether you’re comparing flats for sale in OMR Chennai, from flats for sale in Perungudi and flats for sale in Thoraipakkam to flats for sale in Navalur, flats for sale in Kelambakkam and flats for sale in Siruseri, or looking at flats for sale in Pallikaranai, flats for sale in Medavakkam, flats for sale in Tambaram or flats for sale in Guduvanchery, we show you the true price before you commit. We also help with 3 BHK flats for sale in Chennai, luxury apartments in Chennai, villas for sale in ECR Chennai, gated community villas in Chennai and DTCP approved plots in Chennai. As a trusted real estate channel partner in Chennai, one of the best property consultants in Chennai and an experienced NRI property consultant in Chennai, our real estate consultants in Chennai work for your interests. It’s why families call us the best channel partner in Chennai and the real estate agency in Chennai they recommend to friends.