Sketch My House

20 × 30 house plan — what actually fits

600 sq ft of land. After a 5 ft setback all round you have about 200 sq ft to build on, which is tight for a full house at the standard we draw to.

The arithmetic

Your plot20 × 30 ft = 600 sq ft
Setback, all four sides5 ft
Buildable rectangle10 × 20 ft = 200 sq ft
A comfortable footprintabout 200 sq ft — 33% site cover, garden on every side

Setbacks vary by local rule and with building height. 5 ft is a modest figure used here for the arithmetic; confirm yours with the local authority before you rely on it.

How many bedrooms fit

At 914 mm clear each side of every bed and a 914 mm corridor — with a real kitchen, a living space and a covered entrance, not just bedrooms:

BedroomsNeeds aboutOn your plot
Two712 sq ft not on one floor
Three807 sq ft not on one floor

On a plot this size, more rooms means a second storey rather than smaller rooms. Decide that now, not later — a future upper floor changes the setbacks you are allowed and puts a stair footprint in the ground floor plan today.

What we would check before drawing anything

Get this drawn for your actual plot — dimensioned, checked, with the reasoning. Free, about two minutes.

Start your sketch — free

Related reading

How much space do you actually need around a bed?914 mm each side is the working minimum. Here is where that number comes from, and what a real bedroom measured out at. How far a septic tank must be from a borewell18 m is the separation that matters, and on a small plot it decides where the whole house sits. How many bedrooms fit in your square footage?The honest numbers, and why a tool that never says no is not doing you a favour.

Other plot sizes

25 × 40 · 30 × 40 · 30 × 50 · 30 × 60 · 40 × 40 · 40 × 60 · 50 × 80 · 60 × 40 · 60 × 90