My extension........is hideously expensive...

[dave_s13]

....and not even laid a brick yet.

They stared putting the piles today.

Quoted for a 6m depth at 150 dia.

Only got 2 in (9 total)which took over 4.5hrs and they both went down 14m before they set. Fvckin gutted. The charge is £28 per metre + VAT over and above the 6m quoted.

That's a LOT of extra bstd money!

It's madness. The piles down the side of the house are going to 14m deep, yep 14 METRES, that's 46 feet, 2.5 double decker buses. All that's connected with a 450sq ring beam and it's only supporting a single storey structure FFS. It's only partial 2 storey on the back as well. Jesus, talk about covering your arse

I'm off to fetch a beer.

I've been busy over the last couple of weeks doing the groundworks which had saved a few quid I suppose. Pics of random trenches.




Doesn't really give you much of an idea of scale but it's not a massive job relatively speaking.

I will have spent nearly 10k when this is done (prof fees, move gas/elec meters, groundworks, foundations). Then we can start laying brick.

It better be fking worth it!

Edited by dave_s13 on Monday 13th September 19:44

[Plotloss]

So the piles are going to be 3.5 times deeper than the structure they support?

[dave_s13]

Plotloss said:

So the piles are going to be 3.5 times deeper than the structure they support?

Esentially, yes.

This is an early drawing but gives an idea. Only 2 storey for the new bedroom.



The house is built on an old mining area so it's made up of ash/coal/stty stuff. We dug 2 2m deep trial pits, engineer came out and said they needed piling. Next dooe has a similar extension and his also needed piling, this was 5 years ago. His depths varied from 4 to 9 metres.

The house is built on what seems to be a conventional strip footing, it's still here after 80 years and not a crack or even a hint of movement anywhere.

[Zip106]

dave_s13 said:

[

The house is built on what seems to be a conventional strip footing, it's still here after 80 years and not a crack or even a hint of movement anywhere.

Until they've finished knocking hell out of the ground around it, and then the rest of the house will look like spiders web.
Probably.

And to the cost involved - st a brick!

ETA - do you have a Smart car?
It looks a little tight down to the garage

Edited by Zip106 on Monday 13th September 21:01

[NiceCupOfTea]

Are you building an underground lair?

[Nevin]

The new houses on the road just up from me are built on a lime spoil heap (very old) and they had to pile over 20 metres 10 years ago. They are subsiding already, so it can't have been deep enough.

Worth doing properly.