The Town and Country Planning (General Permitted Development) (England) Order 2015

Class G – hard surfaces for office buildings

Permitted development

G.  Development consisting of—

(a)the provision of a hard surface within the curtilage of an office building to be used for the purpose of the office concerned; or

(b)the replacement in whole or in part of such a surface.

Development not permitted

G.1  Development is not permitted by Class G if—

(a)the cumulative area of ground covered by a hard surface within the curtilage (excluding hard surfaces already existing on 6th April 2010) would exceed 50 square metres; or

(b)the development would be within the curtilage of a listed building.

Conditions

G.2  Development is permitted by Class G subject to the following conditions—

(a)where there is a risk of groundwater contamination, the hard surface is not made of porous materials; and

(b)in all other cases, either—

(i)the hard surface is made of porous materials, or

(ii)provision is made to direct run-off water from the hard surface to a permeable or porous area or surface within the curtilage of the office building.