Knowledge of Building Regs / Sewerage Regs / Similar
Knowledge of Building Regs / Sewerage Regs / Similar
Author
Discussion

J_S_G

Original Poster:

6,177 posts

280 months

Wednesday 13th February 2008
quotequote all
After finally getting planning permission sorted for a house renovation, and the builders starting on the groundwork, the building regs WAS all going to go through... until Unitied Utilities have come back saying that the extension (going into the back garden) is going to be within 5.5m of a main sewer (11" wide job - allegedly towards the back of the garden - still waiting on sewer plans to be sent through).

Anybody who's done renovations/extensions/new builds/similar know how likely I am to be able to come to some arrangement over this? Anybody had similar problems? The extension is only 3m, so worst case is I'm leaving 2.5m+ access to it, and could easily pull the extension back by 1-2ft to make it 3m+ access. They have 100ft+ access to it on the other side.

Wouldn't normally post on this, but it could be financial doom for me if I can't figure something out!

Thanks all... smile

Plotloss

67,280 posts

300 months

Wednesday 13th February 2008
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They're probably not concerned about access as much as your foundations breaking it.

Prepare your chequebook.

J_S_G

Original Poster:

6,177 posts

280 months

Wednesday 13th February 2008
quotequote all
Right now I'd settle for a few £k bill to ensure there's no pressure put onto it from foundations, etc, and to shut them up! Just wondering if anybody's ever got away with that or if the 5.5m rule is an absolute? (Or 6m as it appears to be with other councils after a bit of Googling). And whether most councils count that as X metres either side, or X/2 metres either side. Etc. Etc.

I can't understand how planning permission got granted for the work if this is the case, either?!?

  • feels sick with the agro this place is causing* frown

Sam_68

9,939 posts

275 months

Wednesday 13th February 2008
quotequote all
As Plotloss says, the chances are they are more concerned about damage to the sewer - either by excavation or pressure from the foundations.

I've done an office block in Leeds (Kirkstall Road end of the Headrow, if you're ever visiting smile) that sits bang on top of one of the city's main sewers (a Victorian brick jobby you could walk down!), by designing the foundations to span over the top of it using ground beams.

Back in the real world, though, don't expect them to so you any favours for a domestic extension.

It depends on the nature and depth of the sewer, though; ultimately, you're just going to have to talk to them and see what they might be willing to accept.

Edited by Sam_68 on Wednesday 13th February 18:40

J_S_G

Original Poster:

6,177 posts

280 months

Sunday 17th February 2008
quotequote all
Cheers matey. smile

Looking at the none-too-detailed plans they've provided of the sewers and overlaying it on top of the architect's view of the plot, there should be at least 3.5m of space before I even start scaling down the extension. Fingers crossed there'll be a reasonable-human-being (TM) dealing with this. Just won't hold my breath...

e21jason

738 posts

249 months

Monday 18th February 2008
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Hi

Normally you pay for a condition survey at the start, & the end then pay for any repairs caused by construction. or if that is no acceptable you pay yo have it diverted.

Jason

aw51 121565

4,773 posts

263 months

Tuesday 19th February 2008
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Whenever I've looked at my local council's online planning pages, specifically the planning committee's section (it gets quiet at work sometimes...), people applying for planning permission (or more often their agents) provide maps with the planning application that show any sewer easements in the vicinity if necessary - and such maps are rarely seen on there.

It seems to be OK to build access roads over a sewer easement, but not buildings. These sewer easements tend to (literally) cover main sewers draining several thousand properties, and not an 11" (or whatever the OP wrote) sewer.

Summat fishy here, I'd say, that United Utilities flagged this up after planning permission was given and not before. Would they have been consulted while the application for planning permission was ongoing, and they have just replied?

A - W

1,724 posts

245 months

Tuesday 19th February 2008
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As has already been said, most councils work to the BRegs of approx main drainage being 5m away from any building. Each council and persons within work differently so you need to speak to them and see what they want.


ginettag27

7,145 posts

299 months

Tuesday 19th February 2008
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Exactly how far away and how deep is the main sewer? Please PM me if you want some easy help on this.

J_S_G

Original Poster:

6,177 posts

280 months

Tuesday 19th February 2008
quotequote all
Cheers again, all. beer

Sadly, 7 days on, I've STILL not got to speak to an engineer at United Utilities about this - they just keep promising one will phone.

E21Jason: They're disputing that I should be allowed to do the work at all given the proximity to a sewer and the access they require, rather than issues of me damaging it, unfortunately.

AW51: Having got the plans through, and a copy of the letter they wrote to Building Regs on this, it's only a 10" pipe, so I can't imagine there being an easement at all.

Looking at Severn Trent's website (this kind of information isn't given on United Utilities), there's the following: "For small diameter sewers up to 300mm (12&quotwink we consider that close means building within 3 metres of the centerline of the sewer. This increases to 5 metres for larger sewers."

I'd *hope* the same applies to the various utility companies.

This definitely seems a bit fishy that they're getting involved at this stage rather than planning, but it does mention (on the S.T. website, again), that they liaise on building regs. Bit peeved as to why my architect didn't do a search on this months ago, mind! And why this wasn't mentioned when I bought the property in all the searches.

A-W: I'm hoping it's 3m for such a piddly little pipe, I really am!

ginettag27: Thanks for the offer, I'll drop you a mail! smile


ginettag27

7,145 posts

299 months

Wednesday 20th February 2008
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Reply sent smile


Obiwonkeyblokey

5,400 posts

270 months

Wednesday 20th February 2008
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there was a job on Grand Designs in Bristol a few weeks ago where they also hit a sewer. It cost 11k to have it moved so they could carry on building the house.

davea3

118 posts

227 months

Wednesday 20th February 2008
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could be a hole world of s**t