Attaching a detached garage?

[Grangey]

Silly question but wanted to check.
Currently have a single garage (single brick) separated from the house by a circa 1m wide walkway.

If I wanted to block either side of the walkway up, and extend the garage roof over to join to the house… would this need planning?

Thanks!

 

[Wayners]

Probably.
Just phone the local planning department and ask. They are helpful. No charge for advise.