Home / Plot sizes
House plans for your plot size
Type the size of your plot and get a real, scaled floor plan drawn for it — rooms, doors, windows and stairs, in about a minute. Not sure what your size allows? Everything below explains it.
Browse by plot size
Every size below has a page of its own: what fits on it, what the setbacks leave you to build on, and an example plan drawn at that size. Any other size works just as well — the generator takes whatever you type.
Compact plots
Up to about 1,000 sq ft (93 m²). A narrow frontage, so the rooms sit front to back and a first floor is usually what buys the third bedroom.
- 20 × 30 ft600 sq ft (56 m²)1–3 bedrooms, one floor or two.See plansGenerate
- 20 × 40 ft800 sq ft (74 m²)1–3 bedrooms, one floor or two.See plansGenerate
- 25 × 40 ft1,000 sq ft (93 m²)2–4 bedrooms, one floor or two.See plansGenerate
- 20 × 50 ft1,000 sq ft (93 m²)2–4 bedrooms, one floor or two.See plansGenerate
Standard plots
Roughly 1,000 to 2,400 sq ft (93–223 m²). The most common band by a distance: room for a hall, a kitchen of its own and two to four bedrooms across one floor or two.
- 9 × 12 m108 m² (1,163 sq ft)2–4 bedrooms, one floor or two.See plansGenerate
- 30 × 40 ft1,200 sq ft (111 m²)2–4 bedrooms, one floor or two.See plansGenerate
- 25 × 50 ft1,250 sq ft (116 m²)2–4 bedrooms, one floor or two.See plansGenerate
- 30 × 50 ft1,500 sq ft (139 m²)2–4+ bedrooms, one floor or two.See plansGenerate
- 40 × 40 ft1,600 sq ft (149 m²)2–4 bedrooms, one floor or two.See plansGenerate
- 10 × 15 m150 m² (1,615 sq ft)2–5 bedrooms, one floor or two.See plansGenerate
- 35 × 50 ft1,750 sq ft (163 m²)3–4 bedrooms, one floor or two.See plansGenerate
- 30 × 60 ft1,800 sq ft (167 m²)2–4 bedrooms, one floor or two.See plansGenerate
Large plots
About 2,400 sq ft (223 m²) and up. The house no longer has to fill the plot, so setbacks stop being the constraint and the leftover ground becomes garden, parking and a wider frontage.
The sizes people ask for most
These are the plot sizes typed into HousePlanAI most often over the last thirty days, commonest first. A size with a page of its own links to it; the rest go straight to the generator with the dimensions filled in.
| Plot size | Area | Usually drawn as | Plans |
|---|---|---|---|
| 30 × 50 ft9.1 × 15.2 m | 1,500 sq ft (139 m²)167 sq yd | 3 BHK, G or G+1 | See plans |
| 30 × 40 ft9.1 × 12.2 m | 1,200 sq ft (111 m²)133 sq yd | 3 BHK, G or G+1 | See plans |
| 25 × 40 ft7.6 × 12.2 m | 1,000 sq ft (93 m²)111 sq yd | 2–3 BHK, G or G+1 | See plans |
| 40 × 60 ft12.2 × 18.3 m | 2,400 sq ft (223 m²)267 sq yd | 3–4 BHK, G or G+1 | See plans |
| 20 × 30 ft6.1 × 9.1 m | 600 sq ft (56 m²)67 sq yd | 2 BHK, G or G+1 | See plans |
| 40 × 40 ft12.2 × 12.2 m | 1,600 sq ft (149 m²)178 sq yd | 3 BHK, G or G+1 | See plans |
| 60 × 100 ft18.3 × 30.5 m | 6,000 sq ft (557 m²)667 sq yd | 4 BHK and up, G or G+1 | Generate |
| 30 × 45 ft9.1 × 13.7 m | 1,350 sq ft (125 m²)150 sq yd | 3 BHK, G or G+1 | Generate |
| 20 × 50 ft6.1 × 15.2 m | 1,000 sq ft (93 m²)111 sq yd | 2–3 BHK, G or G+1 | See plans |
| 50 × 80 ft15.2 × 24.4 m | 4,000 sq ft (372 m²)444 sq yd | 4 BHK and up, G or G+1 | See plans |
| 20 × 40 ft6.1 × 12.2 m | 800 sq ft (74 m²)89 sq yd | 2–3 BHK, G or G+1 | See plans |
| 30 × 30 ft9.1 × 9.1 m | 900 sq ft (84 m²)100 sq yd | 2–3 BHK, G or G+1 | Generate |
| 30 × 60 ft9.1 × 18.3 m | 1,800 sq ft (167 m²)200 sq yd | 3–4 BHK, G or G+1 | See plans |
| 25 × 50 ft7.6 × 15.2 m | 1,250 sq ft (116 m²)139 sq yd | 3 BHK, G or G+1 | See plans |
| 15 × 30 ft4.6 × 9.1 m | 450 sq ft (42 m²)50 sq yd | 1–2 BHK, usually G+1 | Generate |
How to read your plot size
The first number is the frontage
In “30 × 40”, the 30 is the width of the edge that meets the road, and the 40 is how far the plot runs back from it. That order matters more than it looks: a 30 × 40 and a 40 × 30 are the same area and two quite different houses, because the frontage decides how many rooms can stand side by side along the street and how deep the ones behind them have to be.
The facing direction — north facing, east facing and so on — says which way that frontage points. It does not change the plot: a north-facing 30 × 40 and a south-facing 30 × 40 are the same rectangle turned around, with the gate, the main door and the parking moved to the other end. So there is no separate plan per facing; say which way yours faces and the plan is drawn that way round.
Square feet, square metres and gaj
Multiply the two numbers and you have the plot area. A 30 × 40 ft plot is 1,200 sq ft; the same plot is 9.1 × 12.2 m, or about 111 m². Where land is sold by the square yard — a gaj in much of northern India — divide the square feet by nine: those 1,200 sq ft are about 133 gaj.
Plot area is not built area. What you end up living in is the area inside the walls of each floor added together, and on most plots that is well under the plot's own figure once the open ground around the house is taken out — which is what the next section is about.
Setbacks turn plot area into buildable area
A setback is the strip of open ground you have to leave between the house and the plot's boundary. HousePlanAI leaves its own by default — on a 30 × 40 that is 5 ft at the front, 3 ft at the back and 3 ft down each side, which leaves a buildable rectangle of about 24 × 32 ft — roughly 768 sq ft of footprint per floor out of the plot's 1,200. Ground coverage works the same way from the other end: where a rule says you may cover 60% of the plot, that is 720 sq ft on a 30 × 40 whatever the setbacks leave.
Those are the generator's numbers, not your municipality's. Setback, ground-coverage and floor-area rules differ from one city — sometimes one street — to the next, and HousePlanAI neither knows them nor checks them. Find out what applies to your plot first, then describe the footprint those rules leave you and the plan is drawn to that instead. It is the single most useful thing to know before you look at any plan.
One floor, or a first floor as well
On a narrow plot the first floor is usually what buys the extra bedrooms. Below about 1,000 sq ft of plot, a floor that has to hold a hall, a kitchen, a bathroom and a stair has room for one or two bedrooms and no more — so a 20 × 30 that wants three bedrooms wants them on two floors, with one bedroom kept downstairs for whoever should not be climbing stairs.
Going up also costs floor: the staircase takes about 70 to 90 sq ft out of every level it passes through, and on a small plot that is most of a bedroom. It is worth generating both versions and looking at them — the plan is drawn in about a minute either way, and the 3D walkthrough tends to settle the question faster than comparing two drawings does.
Corner plots
A corner plot has road on two sides, so it has two frontages and one fewer neighbour. That is worth real money in daylight: the rooms along the second road get windows that an identical mid-block plot cannot have, and the entrance can be moved to whichever side suits the layout rather than the side the plot was sold as. The trade is that setbacks usually apply along both roads, so the buildable rectangle is a little smaller than the same-sized plot in the middle of a row.
Row plots and party walls
A narrow plot in a terrace of identical plots is built differently: the house runs wall to wall across the full frontage, sharing a party wall with the neighbour on each side, and all the light comes from the front, the back and any internal shaft. HousePlanAI draws it that way below about 1,200 sq ft of plot — a 20 × 30 keeps its full 20 ft of width and gives up only 3 ft at the front and 2 ft at the back, which is the only reason a 20 ft frontage works at all — and it puts the bathrooms, the stair and the store against the shared walls, where having no window costs nothing.
Which way your plot faces
Facing is the direction the frontage points — the road side. It changes where the gate, the main door and the parking go, and which rooms get the morning sun. The placement notes below are the conventional ones in Indian practice (vastu); they are switched on by default for Indian visitors and can be turned off in the generator, and nothing in the plan depends on them.
| Facing | What it usually means | Start |
|---|---|---|
| North facing | Even, indirect light through the front all day. Conventionally the entrance sits toward the north-east corner, with the kitchen kept to the south-east. | Draw a plan facing this way |
| East facing | Morning sun on the front rooms. The most asked-for facing in India: the entrance toward the north-east, living space at the front, bedrooms behind. | Draw a plan facing this way |
| South facing | Strong afternoon sun on the frontage, which a deeper porch or a front terrace shades. Conventionally the entrance sits toward the south-east corner rather than the middle. | Draw a plan facing this way |
| West facing | Evening sun, and the hottest front wall of the four in a warm climate. Bedrooms are usually kept off the west face and the kitchen away from the north-east. | Draw a plan facing this way |
Questions people ask
In 30x40, which number is the frontage?
The first one. A 30 × 40 plot has 30 ft along the road and runs 40 ft back from it. The facing direction — north, east, south or west — says which way that 30 ft edge points, and the gate, the main door and the parking all belong on that side.
How much can I build on a 30x40 plot?
Less than the 1,200 sq ft the plot measures, because of the setbacks. With HousePlanAI's own defaults — 5 ft front, 3 ft back, 3 ft each side — a 30 × 40 leaves a buildable rectangle of about 24 × 32 ft, roughly 768 sq ft of footprint per floor. Your municipality's setback and coverage rules may be stricter or looser; the generator does not know them, so look them up and describe the footprint they leave you.
Is 20x30 enough for a 2 BHK?
Yes, on a plot that narrow the two bedrooms usually sit one behind the other with the hall and the kitchen along the other side, and it is drawn as a row house — built wall to wall across the frontage, with light from the front and the back. A third bedroom on 600 sq ft means a first floor.
Should I go G+1 on a 25x40?
A 1,000 sq ft plot holds a comfortable 2 BHK on one floor. If you want three or four bedrooms, or a separate family area upstairs, the first floor is the answer — and the staircase then takes 70 to 90 sq ft out of the ground floor as well, which is worth knowing before you decide. Generate both and compare them; each takes about a minute.
Does the plan use my exact setbacks?
It uses the ones you give it. HousePlanAI starts from its own defaults, which are sensible rather than legal, and you can state your own front, rear and side setbacks in the brief — the plan is then drawn inside exactly that rectangle. It does not check any building code or local bylaw, and it is not a substitute for an architect or a municipal approval.
Can I change the plot size after generating?
Yes. Tell the copilot the new size in plain words — “make it 30 by 50” — and it redraws the plan for the new plot. You can also start again from the top with a different size; nothing is lost, because each plan is its own drawing.
What if my plot is in metres or square yards?
Type it as it is. Switch the unit to metres and “9 x 12” is read as metres; write “9 x 12 m” and the unit is taken from the text whatever the toggle says. Square yards (gaj) are a plot AREA rather than a pair of sides, so you still need the two dimensions — a 133 gaj plot is 1,200 sq ft, which could be 30 × 40 or 24 × 50, and those are different houses.
My plot is not a rectangle. Can I still use this?
Partly. Plans are drawn on a rectangular plot, so the honest approach for an irregular plot is to give the largest rectangle that fits inside yours and treat the leftover as open ground. For a plot that is a long way from rectangular — a sharply angled corner, a deep L — the plan is a starting point to take to a professional rather than something to build from.
What plot sizes does it support?
Any size. Common sizes are one tap away in both feet and metres — 20×30, 30×40, 30×50 and 40×60 ft, or 9×12 and 10×15 m — and you can type your own width and depth instead. Switch between feet and metres whenever you like.
Is HousePlanAI free?
You can start without a card and without an account: describe your house, generate a plan and look around it in 2D and in 3D. A free account is optional, and what it gives you is your plans kept in the cloud rather than only in this browser. If a price applies to anything beyond that, you will see it before you pay, and it is one payment rather than a subscription.
Any size, not just the common ones
The sizes above are the ones people ask for most, not a list of what works. Type your own width and depth — in feet or metres, whole numbers or not — answer a few questions about how you live, and HousePlanAI drafts a real, scaled plan for that plot: rooms at their true sizes, doors and windows placed, stairs drawn. Look it over in 2D, walk through it in 3D and price the build. Starting is free and takes no sign-up.
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