Ground coverage caps the footprint at ground level, and the land-use structure fixes how the rest of the site is divided between green, roads and amenities.
How much of the plot may the building actually sit on?
In Institutional Zone II: 66% for educational, public utility and facility buildings; 33% for social, sports and cultural buildings; 40% for offices and other buildings. Institutional Zone III takes 30%.
CGDCR-2017 Part II, Table 6.39 — and 1 related rules below.
The rules — all 2
GMC ground coverage — Institutional Zones II and III
verbatim
In Institutional Zone II: 66% for educational, public utility and facility buildings; 33% for social, sports and cultural buildings; 40% for offices and other buildings. Institutional Zone III takes 30%.
CGDCR-2017 Part II, Table 6.39· Institutional
Ground coverage (%)
66
Everywhere else in GMC, the margins decide the coverage
verbatim
For zones other than Institutional II and III, ground coverage in Ahmedabad is not given as a percentage at all — it is whatever area remains after the required margins have been provided. The margin tables are therefore the operative constraint on footprint, not a coverage figure.
CGDCR-2017 Part II, Table 6.39, note
Work it out for your own plot
Permissible floor area, coverage and height for your plot — straight from the HP slabs.
Trace your tatima to get the real area, side lengths and a dimensioned plan. Automatic
compliance checking runs on Himachal rules today — for Gujarat the
52 rules published here are the reference, and the check is yours
to make.