30 x 40 house plan, west facing, as per Vastu
West-facing plots need a more deliberate layout to work well, since the road-facing wall isn't the classical entrance's natural first choice.
Sample 30x40 west-facing 3 BHK plan

What fits on a 30x40 plot
With the standard setbacks this planner uses — 4 ft on the road side and 2 ft on the other three sides — a 30 × 40 ft plot leaves a buildable rectangle of 34' × 26', or about 884 sq ft of the 1,200 sq ft plot.
The generated layout uses 884 sq ft of that as ground-floor built-up area, of which about 361 sq ft is open living and dining space.
Setback rules come from your local municipal byelaws — change them in the planner and every figure above recalculates for your plot.
Achievable room sizes on a 30x40 plot
Every figure below is the solved interior dimension from the generated layout — wall face to wall face, exactly as printed on that drawing. Nothing here is a rule of thumb.
| Room | Size | Area |
|---|---|---|
| Master Bedroom | 11'1" x 11'1" | 123.5 sq ft |
| Bedroom 1 | 9'9" x 11'1" | 107.9 sq ft |
| Bedroom 2 | 7'6" x 13'0" | 97 sq ft |
| Kitchen | 7'6" x 11'1" | 82.9 sq ft |
| Bathroom | 6'2" x 4'9" | 29.7 sq ft |
| Living + dining | open plan | 361 sq ft |
Vastu notes for a 30x40 west-facing plot
For a west-facing 30x40 plot, the entrance is best placed in the northwest third of the west wall, not the center — the true center of a west wall is a weaker classical position than the northwest shift gives you. Because the road-facing side isn't where the strongest directions sit, the internal layout does more of the work here: the kitchen still anchors in the southeast, the master bedroom in the southwest, exactly as with any other facing — what changes is how much of the plot's depth you have available behind the entrance to reach them. On a 30-foot width, this usually means a slightly longer entry sequence than an east or north-facing plan of the same size, with the living space bridging the gap. West-facing homes benefit from real attention to afternoon sun on the entrance-facing rooms — a practical consideration alongside the Vastu placement, not a substitute for it.
Get this plan for your own 30x40 plot
Start with 30 × 40 ft, west-facing and 3 BHK already filled in — then change anything that doesn't match your plot.
30x40 west-facing plans: common questions
Is a west-facing plot considered less favourable?
It's considered workable and common, particularly in many western and central Indian cities; the layout simply needs more deliberate planning around the entrance position.
Where should windows go on a west-facing plot?
Classical guidance doesn't restrict window placement the way it does main doors; practical afternoon-sun considerations often matter more here than on other facings.
Can a west-facing plot still have the kitchen in the southeast?
Yes — the kitchen's placement is independent of which wall faces the road.