Attenuation Tank Tedium

This for me is very very dull but I feel obliged to write about it briefly as it's been quite a big annoying issue for us;
During the design stage, planning and working with our code assessor no mention was ever made to us that we would need an attenuation tank to reduce the flow of rain water into the public sewers. It was not included in the plans, costed or quoted for but when our builder met with our code assessor it was brought up as being a mandatory requirement! Why it was never mentioned by our architect I don't think we'll ever know - during the design stage we had paid for a report to be done to calculate the rain water run off and apparently this tank is necessary for the one in one hundred year storm so that our house doesn't cause excessive strain on the the sewers.
The short of it is we now have to set a tank in the garden approx 4 metres long by 1metre deep. sounds simple but in fact it necessitates extra drains and quite serious digging, layers of various materials etc etc- yes I feel like going to sleep talking about it too!!!
We've been quoted £11k for this very dull thing - money I would have much preferred to spend elsewhere on something I can actually see and enjoy - as if we haven't sunk enough money in the ground already.

Due to the mammoth cost our builders are now trying to get quotes from specialist drainage companies to see if they can do it any cheaper - watch this space!!!!!

Catch Up

Last time I posted I think that we were having problems with the ring beam due to the layer of cellcore being missed out and highlighted by the NHBC inspector. After a bit of argy bargy about who hadn't read the drawings correctly the ground works team were forced to re-do the beam which was completed just before the end of November. As you can see in the photo, the rest of the ground is just a mud bath - when we come off site we're a couple of inches taller with all the clay that clings to your wellies!

Ring Beam

So on to site with the brick layers.... The picture below shows the beginnings of the walls as it was left just before Christmas and before the snows and bad weather came.

Site Before Christmas

We did much mooching about on the site in that strange time between Christmas & New Year and came to the conclusion that the the work done by the brick layers was not of a very good standard - we're not builders but even a lay man can see when there's gaps and messy cement left all over the walls. We kept passing the site and nothing had moved on, We were patient as the weather was freezing but eventually called the builder to ask what's going on....... he'd sacked the brick layers as he wasn't happy with their work or attitude!!

We were okay with him getting rid of bad brickies but anxious to get things moving. By mid February a new lot were on site and woking well. The decision had been made to remove the original brick work and start anew and also to leave the garage to later as access will be tight to the back of the house once the garage is up.

Here are some photos of our lovely new walls going up to damp proof course level 

Looking up towards living room and next level up of hallway & utility

Retaining wall at back of the kitchen and under the utility room

looking down site towards the North

Section of curved wall