I live in a mid terrace one bedroom house, neighboura juts out one metre of brick wall in my garden, his garden is 7 metres long will he need planning permission?

Will he need planning for what, ?

same as above, a bit more of an expalantion needed, is it conservatory or wall

all planning permitted development guidelines are available on the planning portal website. Being a terraced property, one of the criteria is no extension protruding 3m beyond the original wall of the house. If your neighbour's conservatory does need permission and he applies to your local authority, take a look at the plans and address your concerns in writing to them about the loss of light. Only if it needs to be applied for can you raise it as a concern. Hope this helps paul uk property services

all planning permitted development guidelines are available on the planning portal website.

Maybe talk with neighbour and agree something,and same above it tells you everything online about planning permission how high how long etc.....