Please note only a few basic allowences are included below and those are subject to additional rules so please check with us or your local Planning Authority

This provides permitted development rights for the erection of a porch outside any external door of a dwellinghouse. 
Development is not permitted by Class D and require planning permission first if - 
(a) the ground area (measured externally) of the structure would exceed 3 square metres  
(b) any part of the structure would be more than 3 metres above ground level or  

(c) any part of the structure would be within 2 metres of any boundary of the curtilage of the dwellinghouse with a highway