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Density, Open Space and Size: Judging a Bangalore Housing Project

By Book A Home Editorial Team·20 October 2026·6 min read
Density, Open Space and Size: Judging a Bangalore Housing Project

A flat that looks perfect on paper can still disappoint when a thousand neighbours turn out to share one small garden. What separates a comfortable project from a congested one is rarely the specification list. It is a handful of physical measures: homes per acre, how much land is kept open, the size of the site, and how parks and the clubhouse are laid out. Here is how to find each and what to infer.

Why the Sanctioned Plan Beats the Brochure

A brochure render is drawn for effect, with wide lawns and no cars. The approved plan is the real document, because it shows every tower, access road and ramp on the same land. Numbers taken from it predict how a crowded Sunday will feel far better than any picture.

The same numbers decide how a home ages. Years from now a resale buyer will notice slow lifts, a tiny park and a booked-out clubhouse. Well-planned land keeps its charm, whereas a plot stuffed with flats loses it quickly.

Homes per Acre

To find density, take the number of homes and divide by the acres of land. Picture 600 homes packed into 6 acres, giving 100 to the acre; spread the same homes over 12 acres and each acre holds 50.

Land near the centre and in the big employment belts costs more, so projects there stack higher and run denser. On the periphery, in villa communities and in plotted layouts, the figure is usually lower. The number touches daily life in several ways:

  • Lift waiting times when everyone leaves for work
  • Queues at the swimming pool, the gym and the children's zone
  • Congestion at the main gate around school and office timings
  • The portion of shared costs that falls on each household
  • Distance, and so privacy, between flats facing each other

Sourcing the figures

The project's entry with Karnataka RERA states the unit count, land area, towers and floors, and the approved building drawings repeat them. When the project is phased, use the land and units for the specific phase, as each may be registered on its own.

Open Land

Open space is whatever part of the site carries no building: lawns, gardens, walking paths, play zones and sports courts. A claim of 70% or 80% sounds generous, yet it needs scrutiny.

Some projects add driveways, open parking and podium roofs to the tally. A garden on a podium is pleasant but is built over a car park, which limits soil depth and large trees. It is sensible to ask for a split between true ground-level green and the rest, and to check that split against the drawn layout.

Towers and the open-space figure

Raising towers on a slimmer footprint can push the percentage up while packing more households into it. For this reason, open space should always be read with density. Ample open area at a moderate density means a real amount of room per family.

The Scale of the Site

A larger plot allows more amenities. Townships of 20 acres and above have space for a big clubhouse, multiple pools, sports fields and sometimes shops or a school. Small projects on 1 to 3 acres, typical in central areas, make do with a modest clubhouse, though the community is smaller and the upkeep lower.

Large developments are normally handed over in stages across many years. Living in phase one can mean construction next door for a long period. The buyer should find out which phase the flat belongs to and when the common facilities are due.

  • Ask if the clubhouse comes up in this phase or in a later phase
  • Look up the RERA completion date of every phase
  • Learn how construction traffic will get to the next phases
  • Find out whether maintenance charges change as phases open

Gardens and Facilities

The open-space total does not reveal how the land is used. One central park of an acre or two usually serves residents better than narrow green strips scattered between towers. On the master plan, find the main park and note whether it is at ground level or over a podium.

Next, set the clubhouse against the families it serves. A clubhouse of 40,000 sq ft is ample for 400 families and cramped for 2,000. Pools, gyms and visitor parking follow the same logic.

Space per home

The simplest test is clubhouse area divided by the total homes, with the main garden measured the same way. Those ratios let the shortlist be compared on equal terms, free of the brochure's framing.

What the City Looks Like on These Measures

Central pockets like Indiranagar, Jayanagar and MG Road offer almost no empty land, and new projects there are mostly small redevelopments. Employment corridors including Whitefield, Bellandur and the Outer Ring Road host towers of many sizes, often at higher density.

Further out, more land means bigger schemes. The belt around Devanahalli and Bagalur in the north and out at the far end of Sarjapura Road there are townships and plotted layouts over many acres. These are loose patterns only, since a project's own figures count for more than where it is.

One Sheet for the Shortlist

With two or three finalists, line up the same data for each in a table. Most of it can be read from the RERA registration, the approved plan and the master plan, so this takes an hour or two. Useful entries include:

  • Acreage for the phase, and for the whole scheme
  • Total homes, number of towers, floors in each
  • Density, calculated from the earlier figures
  • Open area at ground level and the main park's size
  • Clubhouse floor area and area per home
  • Number of lifts in a tower, and the homes each lift serves
  • Completion dates under RERA for the phase and for amenities

Place the rate per sq ft and the likely maintenance bill next to these. The sheet then shows where each rupee buys the most space to live in, not merely the largest unit.

Questions for the Site Visit

Walking the site matters as much as reading the figures. Spend less time in the show flat and more on the land itself. Go to the spot where the park is planned, gauge the distance between towers, and see how near the closest outside building will be.

Have the sales team mark the phase, tower and floor on the master plan, and ask what is planned for any empty plot adjoining the project. A tower coming up next door alters light and view. Check all answers against the sanctioned plan, and keep copies of both documents.

Frequently Asked Questions

What is the way to work out density for a housing project?+
Take the total homes and divide by the acres of land. A project of 480 homes over 6 acres gives 80 per acre. Both numbers appear in the project's RERA registration.
Is a bigger open-space percentage always a good sign?+
Not on its own. Tall towers on a narrow footprint can show a large percentage, yet many households share that area. Check the ground-level green as well, apart from driveways and podium roofs.
Which documents list the homes and land area of a project?+
The RERA registration with Karnataka's authority and the sanctioned building plan. In a phased project, take the numbers for the phase on offer.
Does the size of a project change what a buyer gets?+
Yes. Large sites can hold bigger clubhouses, parks and sports areas but are delivered in stages over years. Small sites trade facilities for a smaller community and often lower upkeep.
How can a buyer compare clubhouses fairly?+
Clubhouse floor area over homes served gives one ratio, and that figure compares projects regardless of brochure claims.

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