Single storey extension eaves height and planning permission

[Joethecrow]

Well hang on, why have Building Control said you can do what you want and not mentioned anything about Build Overs, that seems pretty lapse on their behalf, you should check by reading the guidance on the water company website before making them alert to the situation, the websites usually have everything you need to know with regards to what you need to do get an agreement. Don't forget if it arises that a build over was not agreed when you come to sell that can stir up issues too.

He did mention the build over, and I have applied for and received confirmation of my build over agreement.

I just had a look at this again and you’re right with regards to the 500mm clearance needed. Not too sure why building control said this wasn’t actually needed as we were discussing it… I was mid dig so rather than referring back to my emails I took this as a bonus and decided to make use of the extra space… possibly a costly mistake, however if as Marty has said above is correct and the manhole is my responsibility, might be best I just don’t mention it for now and budget to have it moved if it comes to it.

 

[jono_h]

Once he’d received a copy of my (self certified) build over agreement, my BCO has been similarly relaxed. As long as everything mmets Part H he’s happy. I too pushed my foundations out to be slightly less than 500mm from the manhole, but all he cared about was the foundation depth being below the invert.

I can’t believe that anyone from the Water Authority is going to turn up with a tape measure, I reckon they rely on the BCO policing the design & build. That said if there’s a subsequent problem caused by failing to meet their requirements, I’m sure it would become your (mine) problem to resolve / pay for.

 

[Joethecrow]

Once he’d received a copy of my (self certified) build over agreement, my BCO has been similarly relaxed. As long as everything mmets Part H he’s happy. I too pushed my foundations out to be slightly less than 500mm from the manhole, but all he cared about was the foundation depth being below the invert.

I can’t believe that anyone from the Water Authority is going to turn up with a tape measure, I reckon they rely on the BCO policing the design & build. That said if there’s a subsequent problem caused by failing to meet their requirements, I’m sure it would become your (mine) problem to resolve / pay for.

Thanks, I was beginning to think I may have misinterpreted my BCO being so relaxed… Mine said the same regarding digging down to the invert. I’ve basically just dug level with the base of the manhole footings.

But as you say, if there’s an issue, my having not followed their instructions will be a perfect opportunity to pass the costs onto me.. which I’m prepared to take on the chin given the little bit of extra space I have gained.