The Town and Country Planning (General Permitted Development) (England) Order 2015 No. 596

SCHEDULE 2 E+W Permitted development rights

PART 14 E+W Renewable energy

Class N – installation etc of flue for biomass heating system on non-domestic premises E+W

Permitted development E+W

N.  The installation, alteration or replacement of a flue, forming part of a microgeneration biomass heating system, on a building other than—

(a) a dwellinghouse or a block of flats; or

(b) a building situated within the curtilage of a dwellinghouse or a block of flats.