The Cost Sheet That Tells You Everything: What Bangalore Can Borrow From a Charter City
The buyer who paid more
Ravi was quoted ₹4 crore for a villa plot. By the time he registered it, the number was ₹4.6 crore. The builder had called ₹4 crore all-inclusive. Then the bills came: stamp duty of 5% plus cess, a registration fee that doubled to 2% in August 2025, a khata transfer, a conversion charge, a levy nobody had mentioned at the sales pitch. Stamp duty and registration alone came to about ₹28 lakh. The other ₹32 lakh arrived one invoice at a time.
Nothing was illegal. But Ravi had never seen the real number written down before he paid.
Ravi is a composite character; the figures are illustrative.
What this piece is about
Bangalore cannot build a charter city. There is no empty island, and millions of people are not moving. But one idea from those experiments travels well: set out the rules and the costs before anything is built.
I am starting Prospera on that idea. We have not built or sold anything yet, so this is not a success story. It is the rule we are committing to before we begin, and the case for why Bangalore's buyers need it. It follows our earlier pieces on [titles and links of earlier pieces]. Prospera shares a name with a privately run zone in Honduras; we have no connection to it [confirm].
What a charter city is, in plain words
A charter city is a new or specially governed urban area that fixes its own rules, such as land use, courts and taxes, before it is built, usually under one administrator. Supporters say that removes the delays and hand-offs that slow ordinary cities. Singapore's Jurong industrial estate and Shenzhen, both led by the state, show what building to a plan can do. The best-known private version, a zone on an island off Honduras, shows the risk. Honduras's government and residents of a neighbouring community fought it as a loss of sovereignty, saying they were never consulted, and the country's Supreme Court declared such zones unconstitutional in 2024, a ruling the zone disputes [re-check its legal status the day you publish]. The lesson is not that new cities are bad. It is that rules written down in advance are only worth having if they stay accountable to the people who live under them. We want the discipline without the politics: no zone outside the law, just a builder that writes its rules down first.
Why Bangalore has this problem
Four problems recur, and the 2022 floods in east Bengaluru show all of them.
Infrastructure after the layout. Rainbow Drive, a 36-acre layout of about 400 plots off Sarjapur Road, sits at the original valley level while the road outside has risen by more than three feet, and a drain from the Junnasandra lake ends at its gate. In August 2022 residents hired tractors, then used rafts, to get out; one resident died on 30 August after he could not reach a hospital in time. A few kilometres away in Bellandur, an incomplete stormwater channel (rajakaluve) left overflow from Saul Kere nowhere to go, and it flooded the Outer Ring Road at RMZ Ecospace. Companies on the ORR put their losses at ₹225– 255 crore (reports differ).
Many agencies, one project. The clean-up needed the civic body to knock down a wall at Ecospace, tahsildars to issue eviction notices under the Karnataka Land Revenue Act, and, at Rainbow Drive, land-records surveyors to establish where the drain ran before the civic body could act. The civic body has since changed. The Greater Bengaluru Governance Act dissolved the BBMP in September 2025 and replaced it with the Greater Bengaluru Authority, chaired by the Chief Minister, above five city corporations: Central, East, West, North and South. Whether that cuts the hand-offs is untested, and bodies such as the BDA, the water board and the power utility still sit outside it [confirm current roles].
Hidden compliance costs. The visible kind: Karnataka doubled its registration fee to 2% in August 2025. The invisible kind: after a survey found drain encroachments at Rainbow Drive, the High Court let officials act against 13 villas. Those buyers paid for a home and a title, and may now lose both.
No clean slate. Singapore's Jurong was planned from 1961 on swamp and plantation land, 69 sq km in all, and from 1968 run by one statutory board, the Jurong Town Corporation. It is an industrial estate with housing added around it, not a whole city. Shenzhen had about 30,000 people when it became a special economic zone in 1980. Bengaluru has no equivalent. In 2022 its civic body counted 696 drain blockages, and later counts and public complaints added another 1,690.
The RERA question
Isn't this already required? Partly. RERA, in force in Karnataka since May 2017, makes larger projects (above 500 sq m of land or eight apartments) register before selling. They must disclose approvals, timelines and costs, sell on carpet area, and keep 70% of buyers' money in a project escrow account. Base price, parking, club and maintenance charges are meant to be disclosed. Where it stops short: the cost certificates go to the regulator, not the buyer; they are project-level, not line-by-line; and stamp duty, registration and khata charges sit outside the builder's price. Smaller or bespoke builds may fall outside RERA altogether. Prospera will register every project it is required to, and publish the full sheet for those it is not [confirm this is your intended policy]. That gap is where this argument lives.
Prospera: the sheet we will publish
Prospera has not built or sold a project yet, so there is no track record to show and I will not pretend otherwise. What I can show is the format we will use, filled in with planning figures for a sample 4,800 sq ft luxury villa on a 4,800 sq ft plot, checked against 2026 Bangalore market rates. They are estimates, not quotes. We focus on luxury construction for a narrow band of buyers, not volume, and aim to offer a level of specification, accountability and cost transparency that a high-volume builder has little reason to offer. I am Prospera's founder, so read this as our stated plan, not independent verification.
Land and statutory charges (what the buyer pays on the plot)
| Item | Basis | Amount (₹) |
|---|---|---|
| Land | 4,800 sq ft × ₹6,000 per sq ft | 2,88,00,000 |
| Stamp duty | 5% of land price, plus cess | 14,40,000 |
| Registration fee | 2% of land price | 5,76,000 |
| Land total | Land + stamp duty + registration | 3,08,16,000 |
| TDS (1%) | Deducted from the seller’s payment, not an extra cost to the buyer | 2,88,000 |
Construction (4,800 sq ft built-up area)
| Item | Unit | Quantity | Rate (₹) | Amount (₹) |
|---|---|---|---|---|
| Cement (OPC 43) | 50 kg bag | 2,640 | 410 | 10,82,400 |
| Sand | cu ft | 8,640 | 100 | 8,64,000 |
| Aggregate | cu ft | 6,480 | 70 | 4,53,600 |
| Steel (TMT Fe500D) | kg | 28,800 | 65 | 18,72,000 |
| Bricks | nos | 72,000 | 10 | 7,20,000 |
| Wood (doors and windows) | cu ft | 450 | 3,500 | 15,75,000 |
| Glass | sq ft | 1,500 | 450 | 6,75,000 |
| Plumbing | sq ft built-up | 4,800 | 250 | 12,00,000 |
| Electrical | sq ft built-up | 4,800 | 250 | 12,00,000 |
| Paint | litres | 700 | 550 | 3,85,000 |
| Tiles and marble | sq ft | 6,000 | 250 | 15,00,000 |
| False ceiling | sq ft | 4,000 | 120 | 4,80,000 |
| Elevator (home lift) | set | 1 | 18,00,000 | 18,00,000 |
| Luxury fixtures and fittings | set | 12 | 1,50,000 | 18,00,000 |
| Landscaping | sq ft | 2,000 | 300 | 6,00,000 |
| Building automation | set | 1 | 10,00,000 | 10,00,000 |
| Materials and systems subtotal | 1,72,07,000 | |||
| Labour | sq ft built-up | 4,800 | 900 | 43,20,000 |
| Construction total | about ₹4,485 per sq ft | 2,15,27,000 | ||
| Design and structural fees | sq ft built-up | 4,800 | 125 | 6,00,000 |
| Contingency | 10% of construction total | 21,52,700 | ||
| Construction budget | about ₹5,058 per sq ft | 2,42,79,700 |
Project total: land total ₹3,08,16,000 + construction budget ₹2,42,79,700 = ₹5,50,95,700, about ₹5.5 crore. That is roughly ₹11,500 per sq ft of built-up area, all in.
Statutory charges fall on the buyer as stamp duty (5% plus cess) and the 2% registration fee. The 1% TDS is deducted from the seller's payment, so it is not an extra cost to the buyer. Cess may add a little more [confirm with a sub-registrar]. Stamp duty may also be levied on the government guidance value if that is higher than the sale price [confirm].
How the numbers were built. Unit rates are mid-range 2026 Bangalore figures: cement ₹385–445 per bag depending on grade, red bricks ₹8–12 each, river sand ₹2,000–2,600 per tonne (about ₹100 per cu ft), TMT steel ₹56–70 per kg, home lifts ₹11–22 lakh for a two-person car, and labour ₹600–1,000 per sq ft. Quantities follow standard thumb rules per sq ft of built-up area (for example about 0.55 bags of cement and 6 kg of steel). As a cross-check, the construction total of about ₹4,485 per sq ft sits inside the ₹4,200–7,500 range quoted for luxury homes in Bangalore in 2026. Lines I could not match to a published rate (aggregate, glass, wood, fixtures, landscaping, building automation) use the planning-sheet rate and are marked for confirmation against vendor quotes before the sheet goes live.
Why we are doing this. [Your name, founder, in your own words: one or two sentences on why you will publish every cost before building. Then answer honestly the downside, for example: does itemising every line invite haggling, expose your margins to rivals, or lock you into rates when cement and steel prices move?] A line from your own notes you could use: "The first rule at Prospera is transparency. You see all of the costs, not just one fee at a time."
What Bangalore could borrow
What does not scale. There is no blank island: the city has decades of contested titles. There is no clean land to re-plan. And the oversight problem charter cities attract, a zone outside national law, is not what anyone here should copy.
What could scale.
- Itemised disclosure. How: every layout and project publishes an all-in cost sheet, including statutory charges, before booking. Who acts: the state RERA authority, through a rule or format. Objection: builders say costs move. Answer: publish dated rates and state which lines are estimates; a moving number is still better than a hidden one.
- Rules before plots in new growth areas. How: in greenfield land on the periphery, roads, drains and sewage are approved and sequenced before plots are sold. Who acts: the development authority and the state government. Objection: it slows land sales. Answer: floods cost far more; the 2022 losses alone ran to hundreds of crores.
- One accountable point per project. How: a single named officer or body answers for the street working end to end. Who acts: the state, by notification. Objection: agencies will not cede powers. Answer: it needs coordination duty, not new powers.
What you can do
Before you commit to any plot, villa or flat, ask the builder for the all-in cost in writing: the price, stamp duty, registration fee, khata and conversion charges, and a list of what is not included. Ask whether the project is registered with Karnataka RERA, and check it on the state portal yourself. If a builder will not put the number on paper, treat that as your answer. That is the standard we are holding Prospera to.
Sources
Deccan Herald, 3, 6 and 11 September 2022 and tech-park encroachment report (floods, 696 encroachments, drain list).
South First, 5 September 2022 (₹255 crore loss estimate). homefirstindia.com, Stamp Duty and Registration Charges in Karnataka (2026). vaultproptech.com, TDS on sale of property, Section 194-IA. taxguru.in and nbrgroup.in on RERA; haryanarera.gov.in cost certificate format (Section 4(2)(l)(D)).
LatinNews, 23 September 2024 (Honduras Supreme Court ruling on the zones); Citizen Matters and The News Minute on Rainbow Drive, Bellandur and later encroachment counts; Deccan Herald on Rainbow Drive, Ecospace and the Greater Bengaluru Governance Act (24 April 2025); GKToday and Wikipedia on the Greater Bengaluru Authority; Roots.gov.sg and NLB Infopedia on Jurong; Shenzhen history sources.
Construction rates (2026): infralens.in, Bangalore construction cost and material prices (April 2026); bricknbolt.com, house construction cost in Bangalore 2026; constructionestimatorindia.com, Bangalore rates 2026; aecord.com and comaron.com, TMT steel prices 2026; studiomatrx.org, home lift cost in India 2026. Prospera's own project cost sheet for the unit rates and quantities not covered above.