20 × 50 house plan — 1000 sq ft on a narrow plot

Twenty feet wide and fifty feet deep is the hardest common plot shape in India. Only the front and back walls can take a window. The plan below solves that the way row houses always have: a light well in the middle and rooms arranged either side of a single spine.

Plot size
20 × 50 ft
Plot area
1000 sq ft
Buildable envelope
17 ft × 42 ft
Built-up per floor
≈ 714 sq ft
Suits
2 BHK / 3 BHK

Setbacks assumed: Front 5 ft, rear 3 ft, sides 1.5 ft each. Setback rules vary by state, city, road width and number of floors — confirm yours with your local authority before you finalise anything.

Room schedule

RoomSize (ft)Approx. sq ftVastu zone
Living / hall 11 × 13 143 North / North-East
DiningOpens onto the light well. 9 × 10 90 Centre / West
Kitchen 8 × 10 80 South-East
Master bedroom 11 × 12 132 South-West
Bedroom 2 10 × 11 110 West
Light wellOpen to sky — the only light the middle gets. 5 × 7 35 Centre
Attached toilet 4.5 × 7 31 West
Common toilet 4 × 6 24 North-West
Staircase 3.5 × 11 39 South

Sizes are internal (carpet) dimensions. Add 9 inches for external walls and 4.5 inches for partitions when you set these out on the envelope.

Designing a 20 × 50

With 1.5 ft side setbacks you cannot put an opening on the side walls under most bye-laws, and even where you can, your neighbour will build up to their line. Design as if the side walls are blind.

The light well is not optional on a 42 ft deep envelope. Five by seven feet, open to the sky, placed between the dining and the stair, will light four rooms.

Go up rather than back. A G+1 on 20 × 50 gives 1400 sq ft of built-up area and lets the bedrooms move upstairs where they get front and rear windows.

Vastu for a 20 × 50 plot

The zones above follow the standard arrangement: kitchen in the south-east, master bedroom in the south-west, pooja and water in the north-east, toilets in the north-west, and the centre of the plan kept open. Which facing you have changes where the main door sits, not where the rooms go — see the guides for north, east, west and south facing plots.

Frequently asked questions

How many sq ft is a 20x50 plot?

1000 sq ft, about 111 sq yards, with roughly 700 sq ft buildable per floor.

How do I get light into a 20x50 house?

A central open-to-sky light well, a stair with a skylight over it, and a clear line from the front window to the rear window for cross ventilation. Those three moves are what separate a liveable narrow house from a dark one.