So me and the neighbour arent going to be sure where it actually is if the little I know about it is correct. I remember with my last place the solicitor doing the conveyance said that to be sure you have to hire a surveyor to do a proper search and measure?
I viewed down the fence yesterday and saw that the fence isnt straight, it zig zags a bit at that particular point.
If anyone has any thoughts on whether I should have the windowsills or the walls a metre from the boundary id love to know. I assume im reading too much into the drawing?
Best thing to do is confirm with your Architect that the planning policy is in fact 1m or a "suggested" 1m (which could be say, 900mm if need be). And is it a policy of both neighbours needing to keep 1m from a boundary or can one actually build up to the boundary and the other then denied this.
However, be aware that the 1m to a boundary is normally at first floor level, and at ground floor extensions can go up to the boundary. Check the local policy
Typically, the planners require separation and a space between properties to avoid them looking joined up, or known as "terracing". The distance is often not prescriptive, and whilst 1m is mentioned it can be less or more depending in the site specifics.
Whatever the distance is, it's to the wall face, not any projections.
If the properties are a typical say, row of semis with a fence and passageway each side, the legal boundary, and also the dividing boundary for planning purposes would tend to be half the distance between each property wall. But these two could differ.
Building regulations is a definitive 1m between the wall face and the boundary. In this case the boundary can be determined by the concepts of a notional and a relevant boundary, but this only an issue in terms of the openings in the wall facing a boundary, not the position of that wall.