Massing Study — early feasibility for a single plot

Enter the plot and its planning limits. Everything is computed in the browser — nothing is uploaded, and the page works offline once loaded. Figures are indicative: they are the arithmetic of a feasibility sketch, not a planning determination.

Study name

Plot

Width m

Depth m

Surveyed area m²

For an irregular plot, enter the surveyed area. It overrides width × depth in every ratio.

Setbacks

Front m

Rear m

Left m

Right m

The front edge faces the bottom of the drawing; north is marked on the sheet.

Building

Storeys

Floor to floor m

Step back from storey

Step back by m

Net to gross %

The share of gross floor area that ends up as usable space. 80–85% is typical for housing.

Planning limits

Max plot ratio

Max height m

Max coverage %

Leave a limit blank and it is not checked.

View

Camera bearing °

Camera elevation °

Sun study

Cast the ground shadow

Latitude °N

Day of year

Solar time h

Day 355 is the December solstice — the longest shadows of the year north of the equator.

Axonometric

Schedule

Site area: —
Buildable envelope: —
Footprint: —
Gross floor area: —
Net floor area: —
Plot ratio: —
Site coverage: —
Height: —

Area schedule

Floor area by storey
Level	Plan m	Area	At height	Note
Gross floor area		—

Planning checks

—

Scheme against the plot's planning limits
Check	Scheme	Limit	Headroom	Result