Hi all thanks for all your response's, sorry about delay in reply.
Came back sunday to find builders banging away to extent the house was shaking and couple of cracks also appeared on internal upstairs back wall.
on monday i took a look up where they were working.
this was last straw found...
Thanks for the continued responses.
I returned home from work yesterday, the builders had been back and completed more of the wall it now looks like this.
Without my agreement they have bridged the gap with a shoddy layer of mortar.
Terrypin
Thanks for pointing that out.
I mean roof going straight down from back wall, instead of the roof on the plan. Does a change in the roof design need new planning permission???.
Thanks for all the replies.
The neighbours have not moved in yet. They did applied for planning permission which was granted.
I was not informed by the owner before hand of the proposed extension, until i had received the planning notice from the council. we did raise are concerns...