South-facing 20×40 ft house plan in Chennai
A 20×40 ft plot (800 ft², about 1.8 cents) with the road on its south side. South-facing plots are the facing buyers discount most — which is exactly why it can be a value buy. Vastu does not forbid south plots; it asks for a carefully placed entrance and a heavier southern mass, both of which a good plan handles.
Where the rooms go on a south-facing plot
Vastu corners are compass-fixed — what changes with facing is where they land relative to your road. On a south-facing plot the road is the south side, so:
| Room | Vastu corner | On this plot |
|---|---|---|
| Pooja room | North-east (Ishanya) | rear, toward the east |
| Kitchen | South-east (Agni) | front, toward the east |
| Master bedroom | South-west | front, toward the west |
| Staircase | South or west side | front, toward the west |
These are the same placements Plot2Plan's design-checks card scores a generated plan against — advisory guidance, never a legality rule.
Sun, entrance and the south road
The facade gets high-angle sun that eaves and a small overhang shade easily — in practice a south front is cooler than a west one. Rooms on the north side stay bright without heat.
The main door opens on the south (road) wall. South entrances get the most Vastu scrutiny — tradition favours the eastern half of the wall (toward the south-east) rather than the south-west corner.
Setbacks & buildable area
Facing changes the orientation, not the by-law numbers: side and rear setbacks stay 1.5 m, the front setback (on the south wall) depends on the road width, FSI stays 2 and the height cap 12 m. On a typical 30 ft road that leaves roughly a 10.2×25.2 ft footprint (~256 ft² per floor) and up to 1,600 ft² of total built-up area. Full road-band tables are on the 20×40 plot guide.
Get a south-facing 20×40 floor plan — free
The generator drafts a plan for this exact facing: the rule engine puts the front setback and main door on the south wall, AI arranges rooms toward the Vastu corners above, and a validator checks every wall, door and stair before you see it.
Generate a south-facing 20×40 planRun the feasibility report
Frequently asked questions
Is a south-facing 20×40 plot good as per Vastu?
South-facing plots are the facing buyers discount most — which is exactly why it can be a value buy. Vastu does not forbid south plots; it asks for a carefully placed entrance and a heavier southern mass, both of which a good plan handles.
Where should the main door be on a south-facing house?
The main door opens on the south (road) wall. South entrances get the most Vastu scrutiny — tradition favours the eastern half of the wall (toward the south-east) rather than the south-west corner.
Where should the kitchen be on a south-facing 20×40 plot?
In the south-east (Agni) corner — on a south-facing plot that is the front, toward the east of the plot. The fire corner — traditional for cooking, catches morning cross-light.