Am I right in thinking that if my parents want to do a simple rear extension to their 4 bed semi-detached house (4th room is a loft room), that we can simply start this straight away without approaching the council as long as we stick to the limits of 3m in depth, max 3m at the eaves and circa. 5m in width so that we dont go past the side flank wall where we have a shared drive?
We are not in a conservation or designated land area.
If the answer to the above is yes, is it still advisable to approach the council for a certificate of lawful development? We have new neighbours moving in soon (on the shared drive side) so I want to start this work asap before they move to avoid dirt and inconvenience to them with builders etc.
Also, if my other neighbour already has a rear extension, and we are to leave a small gap (party wall etc), how do the builders build a cavity and also do both sides of the brick work and insulation given that you cannot walk around it due to the neighbour's flank extension wall?
Thanks.
We are not in a conservation or designated land area.
If the answer to the above is yes, is it still advisable to approach the council for a certificate of lawful development? We have new neighbours moving in soon (on the shared drive side) so I want to start this work asap before they move to avoid dirt and inconvenience to them with builders etc.
Also, if my other neighbour already has a rear extension, and we are to leave a small gap (party wall etc), how do the builders build a cavity and also do both sides of the brick work and insulation given that you cannot walk around it due to the neighbour's flank extension wall?
Thanks.
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