How to draw a house floor plan online

Smart Planning in Architect World draws a house floor plan in your browser: set the plot, draw rooms by typing their size or walls by their length, add doors, windows, stairs and furniture, and it keeps every room’s area and the plot’s used and remaining area as you draw. It is made for architects’ studios, on a computer or a tablet.

What you need

Steps in the app

  1. Open Smart Planning in the sidebar and press New plan.
  2. Pick the project, the Building type and the Units (Feet and inches, Feet or Metres). Enter the plot as length × width, or press Recommend a size. List the Rooms the client wants and press Create plan. Use the example fills in a sample house.
  3. Draw rooms with the Room tool (R): drag the inside of the room, or type its size, like 12 x 14, and click to place it. Or draw walls with the Wall tool (W), click by click or by typed lengths: 9 in outer walls and 4½ in inner walls.
  4. Add doors (D, 3 ft by default) and windows (N, 4 ft by default) on the walls, then stairs (S), furniture (F) and text (T). Measure (M) any distance.
  5. Use the right panel: Suggestions (Plan steps, What next?, Suggest furniture for this room and the design checks) and the Area Summary.
  6. Add floor for the floors above. The plan saves itself; Reports › Download Excel gives the area table.

How the areas are worked out

Each room’s area is its clear area inside its walls.

The bar at the top shows Total (the plot), Used (every room’s area added up) and Remaining (Total − Used). It turns red when the rooms are bigger than the plot.

Built-up area runs to the outside faces of the outer walls, so built-up − used is the walls’ share.

You can type lengths as 15'6", 15 ft 6 in, 15.5, 4.5m or 4500 mm. Everything is kept in millimetres, so changing the units never moves anything.

The checks point out rooms that are too small, passages under 3 ft, a room without a window and more. They are suggestions: a design aid, not a certificate of compliance.

Worked example

A 30 × 60 ft plot (1,800 sq ft) with one bedroom drawn by typing 12 x 14 with the Room tool, inside 9 in (230 mm) walls.

The area bar and the Area Summary
Total (the plot, 30 × 60 ft)1,800 sq ft
Used (the bedroom inside its walls, 12 × 14 ft)168 sq ft (9%)
Remaining1,632 sq ft
Built-up (to the outside of the walls)209.5 sq ft
Walls (built-up − used)41.5 sq ft

Worked out by the app’s own area code, shown to one decimal.

Common mistakes

Questions

Can I draw on my phone?

No. Phones show the plan to view; drawing works on a computer or a tablet.

Can I export the plan to DWG or DXF?

No. Reports › Download Excel gives the areas by room and floor, and you can share a 3D tour of the plan with a link.

Does it follow Vastu?

Show Vastu suggestions is off by default. Turned on, it gives eight rules as notes only.

Can I draw more than one floor?

Yes. Add floor makes the next one, up to 30, with the floor below shown faintly.

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