Build or Buy a House? What Each One Really Costs

There is more than one way to own a home. You can buy a plot of land and build a house on it, or you can buy a home that is ready to move into. Which one suits you? Let's go through both.

Buying a Ready-Made Home

A ready-made home comes in two forms: a resale home, or a new house built by a developer inside a gated society.

In a gated society, you usually cannot change the outside of the house, and every home the developer builds looks alike. Only the interiors and the internal paint are yours to change, which makes it much like owning an apartment, and you pay a monthly maintenance charge as well.

An apartment differs in one basic way: it sits on a single floor of a shared building, so families on several floors share the same piece of land. Much of an apartment complex is also run centrally, including the water supply, parking and the cleaning of common areas, and maintenance charges there are usually higher. Even so, houses built by developers in gated societies usually cost more than both apartments and resale homes.

What to Check Before You Buy

• The current land price in that area. A resale home more than 15 years old usually sells for close to the land price, with only a small premium for the construction. For a new house, add the cost of construction on top of the land price.
• Water supply. Does the area get a daily municipal supply, or does it depend on borewells? If it runs on a borewell, have the water quality tested.
• Sewage. Confirm that the area has a proper sewage system.
• Monsoon history. Ask how the area has handled the last 10 monsoons, and whether it floods.
• Distance from the main road.
• Corner plot or not. Corner houses cost more, because buyers prefer them.
• Parking space and EV charging.
• Wall structure or column structure. Older houses are usually wall structures, where you cannot make major structural changes later.
• How many sides are open. Check whether the house is open on one, two, three or all four sides, and how many of its walls are its own rather than shared with a neighbor.
• The materials the developer claims to have used. Verify them.

Building Your Own House

A few checks are the same as above: verify the land, and look into the water and sewage systems. The rest of this list is particular to building.

• Your loan works differently. A plain home loan is meant for a house that already exists. To build, you take either a plot loan or a composite loan, which covers the land and the construction together and is released in stages as the work progresses. A plot loan is not converted into a home loan later; that would need a separate construction loan. Plot loans also cost more, typically 50 to 150 basis points above a home loan, and they fund only 60% to 75% of the plot, against up to 90% for a home loan. SBI's home loan starts at 7.25% a year. There is a tax catch as well: interest paid while the house is going up is not deductible that year. You claim it in five equal instalments once the house is complete, within the ₹2 lakh cap, and only under the old tax regime.
• Drawings and approvals. You need architectural and structural drawings, along with electrical and plumbing layouts, and the building plan has to be sanctioned before work starts. Who sanctions it depends on your city: BBMP or BDA in Bengaluru, CMDA in Chennai and DTCP elsewhere in Tamil Nadu, MCGM in Mumbai, GHMC or HMDA in Hyderabad, PMC or PMRDA in Pune, and the DDA with the municipal corporation in Delhi. Tamil Nadu takes applications through a single online window.
• Materials and budget. This is where the money actually goes, and it is the part you control when you build for yourself: cement, blocks, sand, tiles, wiring, pipes, doors and windows, basic fittings, and paint.
• Full contract or labor contract. Decide based on your budget and how much time you can give the project.
• The contractor. This is the most important choice, and the most worrying one. If a dispute breaks out midway, the house sits unfinished, and restarting with someone else can wreck your budget.
• Time. Building takes far longer than most people expect. Design and approvals alone take about three months, and a single-storey house of 1,000 to 1,500 square feet needs another 12 to 15 months. Plan for 12 to 24 months in total, and add 2 to 4 months if the work runs through a monsoon.

Your material choices set the bill. In 2026, a basic finish costs about ₹850 to ₹1,400 per square foot, a standard finish ₹1,150 to ₹1,900, and a premium finish ₹1,700 to ₹2,800. Above roughly ₹3,800 you are in luxury territory. That is construction alone, on top of what you paid for the land.

The Land Matters Most

Whichever route you take, the land decides everything else, and what matters most is who approved the layout. A layout cleared by a development authority such as DTCP, CMDA, BDA or HMDA has to meet rules on road widths, open space and drainage. A layout that only a gram panchayat has "approved" is cheaper for a reason: a panchayat cannot legally approve a large layout or convert agricultural land to residential use. Banks usually refuse loans on such plots, and the building plan, the registration or a later resale can all stall. A RERA number is not a layout approval either. It is a registration that comes after the layout is approved.

Before you pay anything, check the title deed and the mother deed, the encumbrance certificate for the last 13 to 30 years, the khata, patta or 7/12 extract, the land-use conversion order, the approved layout plan with its authority number, the sanctioned building plan, and, for a completed home, the commencement and occupancy certificates.

Building for yourself gives you more freedom, though you carry the risk of the contractor or the firm doing the work. On price, a resale home often costs less than comparable new builder stock, while the cost of a self-built house depends entirely on what you paid for the land.

What Top Developers Charge in the Metros

By sales booked in FY26, the largest listed developers are Godrej Properties (₹34,171 crore), Prestige Estates (₹30,024 crore), Lodha (₹20,530 crore), DLF (₹20,143 crore) and Signature Global (₹8,250 crore). Here is what their flagship projects, along with other leading local names, are asking in each metro.

Asking rates are from the June 2026 quarter. Most ticket sizes are the rate multiplied by the published unit size, so treat them as indicative.

City averages show what the wider market costs, and how fast prices have moved:

One warning before you compare these numbers: cities do not measure the same way. Mumbai and Pune rates are usually quoted on carpet area, while Delhi NCR, Bengaluru and Hyderabad are quoted on super built-up area, which makes them look cheaper per square foot than they are.

Sources and References

• SBI home loan interest rates
• PNB Housing: composite loan vs plot loan vs construction loan
• ClearTax: Section 24 and pre-construction interest
• JK Cement: construction cost per square foot, 2026
• Ongrid Design: a realistic home construction timeline
• Tamil Nadu online planning permission (CMDA and DTCP)
• Knight Frank India: office and residential market, H1 2026
• PropTiger city price data, Q2 2026
• Business Standard: FY26 pre-sales of listed developers
• Square Yards project pages (example: Lodha Amara)

Prices and rates are as of September 2026 and move quickly. Check the current rate card with your bank and the current price with the developer before you commit.

This analysis is for educational purposes only and does not constitute investment advice.