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Converting sous-sol


Richardk

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We're looking to convert the ground floor or our

property which is currently a garage. It's split into two level with

one having a height of 2.25m and the other 1.9m at the lowest points

(under concrete supporting beams running across the building). Think an

oblong in shape and that's broadly it. This image should help to

visualise the beams etc..

The

taller area is approx. 70sqm, and the shorter area 80sqm. The previous

owner told me the floor is 5 to 6cm of concrete, and that the walls go

down about 5 courses of blocks - they are breeze block, but haven't

verified what size. We're located in 66, it's pretty dry here & I imagine the gound is hard as ... rock.

We plan to convert all of the area with

the 2.25m height, and want about 30sqm of the lower area. With the

beams as they are to use this we have to take up the existing floor,

dig down and relay. Damp proofing is a consideration here, although not quite sure what to do.

Our

choice is whether to dig up, then down over the entire 80sqm, or target

just the 30 which we need. Either way, we're getting professional help.

Q1. Realistically, how easy is it to dig down just for an area of 30sqm within a larger area? Or is it an all or nothing thing for example?

Q2. What would a new ground floor be composed of? xcm hardcore, ycm concrete, etc...?

Thanks for your advice.

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Possible. In general we won't have a problem with height, however, there is one beam which once we've screeded and then tiled would bring my head awfully close to the beam. Anyone over 6ft would have to duck. I'm also not sure what spec a floor should be and don't want it all cracking up in years to come due to it not being good enough.

That said....our bank balance loves the idea of not digging it up....

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