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Hidden Charges When Buying a Flat: The Full Cost Sheet

10 Sep 2026
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Hidden Charges When Buying a Flat: The Full Cost Sheet

The hoarding says Rs 8,000 per sq ft. The broker says Rs 1 crore. The cheque you actually write is closer to Rs 1.33 crore, and every rupee of the difference is disclosed somewhere — spread across a booking form, an allotment letter, a cost sheet annexure and a demand letter that arrives eighteen months later.

Nobody publishes the whole sheet in one place, because the whole sheet is uncomfortable. Here it is, line by line, for a Rs 1 crore under-construction flat in Delhi NCR.

Key takeaways

  • The real number is 30% to 35% above the advertised base price on an under-construction NCR flat, and about 27% on a ready flat with an occupancy certificate, where only the GST falls away.
  • GST alone is 5% of the agreement value on an under-construction unit, and drops to zero the day the project gets its OC.
  • Stamp duty and registration add 5% to 7.5% depending on the state and whether the buyer is a woman.
  • PLC, floor rise, club and parking together run Rs 8 lakh to Rs 12 lakh on a Rs 1 crore unit, and every one of them is negotiable.
  • Possession-linked demands are the ones people forget — budget Rs 1.2 lakh to Rs 2 lakh for advance maintenance, meters and connections.

The base price is not the price

Start with what the rate is quoted on. A Rs 8,000 per sq ft "basic sale price" in Gurgaon or Noida is almost always quoted on super built-up area. Take a 1,250 sq ft super area unit with a 68% efficiency and you own 850 sq ft of carpet. The effective rate on the space you can actually stand in is Rs 11,765 per sq ft, not Rs 8,000. RERA requires the agreement to state carpet area, but the marketing rate almost never uses it, which is a 47% gap on this unit alone.

That is before a single add-on. Now the add-ons.

The builder's own line items

Preferential location charges

PLC is what you pay for a view, a corner, or a park in front. In NCR it runs Rs 150 to Rs 600 per sq ft, and it stacks: park facing plus corner plus road facing on the same unit is common. On 1,250 sq ft at Rs 250 per sq ft, that is Rs 3.12 lakh. Ask whether the PLC is charged once or built into the per sq ft rate, because some builders do both and hope you do not read the annexure.

Floor rise

More a Mumbai, Bengaluru and Chennai habit than an NCR one, but it appears in NCR high-rises too — Rs 25 to Rs 100 per sq ft per floor above a base floor, sometimes capped at the tenth or fifteenth. On an eighth-floor unit at Rs 50 per sq ft, Rs 62,500.

Club membership

One-time, non-refundable, and mandatory whether you swim or not. Rs 1 lakh to Rs 3 lakh in mid-segment NCR projects; Rs 5 lakh to Rs 15 lakh in the luxury towers on Golf Course Road and Dwarka Expressway. Separate from the monthly club running charge, which starts after possession.

Parking

Covered or basement parking is Rs 3 lakh to Rs 6 lakh per slot in Gurgaon, Rs 2 lakh to Rs 4 lakh in Noida. Open parking is Rs 1.5 lakh to Rs 3 lakh. This is the most contested line on any cost sheet: the Supreme Court held in Nahalchand Laloochand v. Panchali Co-operative Housing Society (2010) that stilt parking is a common area and cannot be sold as a separate flat. Builders across NCR still charge for it, and buyers still pay. If you want to push back on one number, push back on this one.

Power backup

Charged per KVA of sanctioned DG backup, Rs 20,000 to Rs 35,000 per KVA one-time, with 2 to 5 KVA allotted depending on unit size. A 3 KVA allotment at Rs 25,000 is Rs 75,000. The per-unit running charge for diesel comes later, on the maintenance bill.

IFMS, EDC and IDC

These two are large enough to have their own pages. IFMS is the interest-free maintenance security the builder collects and hands to the RWA — Rs 50 to Rs 150 per sq ft in NCR. What IFMS is and whether you get it back covers the recovery problem. EDC and IDC are the statutory external and internal development charges levied by the state and passed straight through to you, typically Rs 300 to Rs 600 per sq ft in Haryana — the EDC and IDC guide explains how they are computed and why the number keeps getting revised upward mid-project.

The full sheet on a Rs 1 crore Gurgaon flat

Assumptions: 1,250 sq ft super area, Rs 8,000 per sq ft base, under construction, eighth floor, park facing, one covered parking, male buyer, Haryana stamp duty.

Line itemBasisAmount
Basic sale priceRs 8,000 x 1,250 sq ftRs 1,00,00,000
PLC (park facing)Rs 250 per sq ftRs 3,12,500
Floor riseRs 50 per sq ftRs 62,500
EDC and IDCRs 400 per sq ftRs 5,00,000
Club membershipOne-timeRs 2,00,000
Covered parkingOne slotRs 4,50,000
Power backup3 KVA at Rs 25,000Rs 75,000
IFMSRs 100 per sq ftRs 1,25,000
Agreement valueRs 1,17,25,000
GST at 5%On Rs 1,16,00,000, the agreement value less the refundable IFMS depositRs 5,80,000
Stamp duty at 7%Haryana, male buyerRs 8,20,750
Registration feeHaryana capRs 50,000
Legal and documentationBuilder plus your lawyerRs 40,000
Possession-linked chargesSee belowRs 1,35,000
Total outgoRs 1,33,50,750

That is 33.5% over the advertised Rs 1 crore, or Rs 10,680 per sq ft of super area against a headline of Rs 8,000.

What moves the total by lakhs

  • Ready versus under construction. A completed flat with an occupancy certificate carries no GST. That single fact is worth Rs 5.8 lakh on this sheet. The residential GST rate page sets out the 1% affordable and 5% standard slabs and what counts as affordable.
  • Who the buyer is. Haryana charges 7% stamp duty on urban property to a man, 5% to a woman and 6% to a joint male-female pair; rural rates are 5% and 3%. Registering in a woman's name saves Rs 2.35 lakh on this sheet. Delhi is 6% and 4%. Gurgaon registration charges has the current slabs and the Rs 50,000 fee cap, and the state-by-state stamp duty table covers the rest of the country.
  • Circle rate versus agreement value. Duty is charged on whichever is higher. If the circle rate for your sector exceeds what you paid, you pay duty on the circle rate and the gap can be taxed as income under Section 56(2)(x) beyond a 10% tolerance.
  • The payment plan. A subvention or 10:90 plan defers cost rather than removing it. How subvention schemes actually work explains who carries the interest.

Possession-linked charges, the ones nobody budgets

The demand letter that arrives with the offer of possession usually carries four or five items at once, and the keys do not move until it clears.

  • Advance maintenance — 12 months collected upfront at Rs 3 to Rs 5 per sq ft per month. On 1,250 sq ft at Rs 4, Rs 60,000.
  • Electricity connection and security deposit — Rs 30,000 to Rs 60,000, higher where the builder runs a private sub-station.
  • Water and sewerage connection — Rs 10,000 to Rs 25,000.
  • Piped gas connection — Rs 8,000 to Rs 20,000 where available.
  • Society or RWA formation charge — Rs 10,000 to Rs 25,000 in some projects.

Check every one of these against the allotment letter before you pay. Builders routinely raise a demand for a charge that was never in the original cost sheet, and once you have paid it, getting it back is a consumer forum matter. Read the possession letter guide before you sign the handover.

What you can actually negotiate

Statutory charges are fixed: GST, stamp duty, registration, EDC and IDC. Everything the builder invented is negotiable, and in a slow quarter builders will drop PLC and club before they cut the headline rate, because the headline rate is what sets their published price.

In practice, a serious buyer in NCR can usually get one of these three: PLC waived entirely, club membership waived, or one parking slot free. Ask for the cost sheet in writing with every line named and its basis stated, and compare it against a second project before you book. If a builder will not put the full sheet on paper before the booking amount, that is your answer about the rest of the relationship.

FAQ

Are hidden charges illegal under RERA?

No, but concealing them is. RERA requires the builder to disclose the full cost and to charge on carpet area in the agreement for sale. A charge that appears after booking and was not in the disclosed cost sheet can be challenged before the state authority.

Is GST payable on a ready-to-move flat?

No. Once a project has its completion or occupancy certificate, the sale is treated as a transfer of immovable property and falls outside GST. That is a 5% saving, and it is the strongest financial argument for buying ready.

Can a builder charge for car parking?

Builders across India do charge Rs 2 lakh to Rs 6 lakh a slot, but the Supreme Court has held that stilt parking is a common area and not a separately saleable unit. Covered and basement parking allotments in newer projects are usually structured as a right to use rather than a sale, which is how the charge survives.

Is IFMS refundable?

It is a security deposit meant to be handed to the resident association at handover, and it is interest-free. Recovering it in practice depends entirely on whether the builder actually transfers the corpus when the RWA is formed.

What percentage should I budget over the quoted price?

Budget 30% to 35% over the base price for an under-construction NCR flat. On a ready flat with an OC only the 5% GST comes off, so the sheet above still lands near 27%. In Delhi, where EDC and IDC do not apply and stamp duty is 6%, the under-construction figure works out around 27% as well.

Before you book

Ask for the cost sheet, the payment plan and the draft agreement together, then add the four statutory lines yourself. If the total surprises you, it was going to surprise you anyway — better now than at the possession demand. Send us the sheet and we will tell you which lines in it are soft.

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