Gap between extensions

Lewis81

New Member
Hi,

currently having a single rear storey extension built on a semi-detached house.

Builder is currently building up the foundation walls and has left a 200mm gap between neighbours property and the outer wall of my extension.

This isn’t how the wall looks on the planning or building reg drawings.

Will this cause me problems in sign off? Is there a reason they would choose do do this?

I will speak to them, just trying to get a general opinion first.
 
A few pictures attached.
 

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Plans are drawn to scale so it should be built according to plan. That’s what you employed the builder to do
 
As JC says: you have drawings done for the builder to follow. You need to sort this right now or there is the risk of him doing his own thing whenever he feels like it.
 
Could be to allow cross ventilation in the roof, to avoid cuts on every course of bricks or some other practical reason that wasn’t taken into account on the plans.
Whilst you go off the plans, on site there are practicalities that may call for slight deviations.
Cant see planning having an issue with being further from the boundary, if it was the other way round that would be cause for concern.
Best just to ask you builder along the way of anything you’re unsure about.
 
Could be to allow cross ventilation in the roof, to avoid cuts on every course of bricks or some other practical reason that wasn’t taken into account on the plans.
Whilst you go off the plans, on site there are practicalities that may call for slight deviations.
Cant see planning having an issue with being further from the boundary, if it was the other way round that would be cause for concern.
Best just to ask you builder along the way of anything you’re unsure about.

It would be even better if the builder agreed variations with the customer before making them
 
So does that mean the neighbour built his wall at the edge of the foundation or his foundation encrouched on the OPs land

In my experience its usually found that the first neighbour has encroached by building their foundation over the boundary line to enable their wall the be right on the edge of the boundary. That then causes the second neighbour issues later on.

I came across one recently where the first neighbour's wall had been set centrally on the boundary, presumably on purpose, thus making it a party wall. That enables the second neighbour to then just built up to it and incorporate it into the build, which was great.

Ive had planners insist that walls are pulled back from the boundary to prevent eaves overhangs over the boundary.
 
Doesn't there have to be a firewall/firebreak between properties in a case like this? My sister has a lean to extension and so does her attached neighbour. The extensions are joined via a "square" wall that stands higher than both roof lines.
 
Doesn't there have to be a firewall/firebreak between properties in a case like this? My sister has a lean to extension and so does her attached neighbour. The extensions are joined via a "square" wall that stands higher than both roof lines.

Whenever we’ve done this external wall is parapet wall, which then gets shared by neighbour when they build there’s, as a firewall and keeps guttering separate. Have done it where rebar was set in concrete for next door to join on the slab when they do their pour down the line
 
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