I am going to change the layout at the back of the house (a Victorian end terrace). I am pretty sure this is a permitted development.
1) I want to move the rear single story kitchen wall back 1 metre and add a large area of folding door. 2) I want to demloish an existing (Victorian) outbuilding which is located with a gap of 1.4 metres from the house.
Q) Does the outbuilding count as "part of the house" for building control and planning purposes?
Why is this important? Well, if the ourtbuilding is classed as part of the existing building then the contraints on window and door area resulting from Part L will be easier to satisfy.
I remember that there used to be a rule that any outbuidling within 5m of the house counted as part of the house. Is this still the case?
Other info: Area of outbuidling: 8 sq m., Construction: wood (double skin) with slate roof, built in about 1880 Area of extension of main house: 5 sq m. Window/door area in new wall: 5 sq m.
with thanks to anyone who cares to comment,