Lower in Flooring in Attached Garage Conversion
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110sb
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Lower in Flooring in Attached Garage Conversion

by 110sb » Sat Apr 17, 2021 11:29 pm

I am wanting to convert my attached single story garage into a utility space and an office space.

In the utility space I want to put a shower but would have very little headroom once I've damp proofed and insulated the current floor. The floor is typical concrete slab. Can anyone advise if I would be able to excavate the floor in the proposed utility space then create a floating floor at depth lower than current slab? What would be needed to get it passed by building control?

Thank you in advance.

stoneyboy
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Re: Lower in Flooring in Attached Garage Conversion

by stoneyboy » Sun Apr 18, 2021 9:57 pm

Hi 110sb
With luck you will be able to dig down to the depth of the existing house foundations, form a new sub floor and build retaining walls as required before forming a new suspended floor.
It’s a matter of doing some exploratory digging and then agreeing with the BI how to proceed. Suggest you do this using the building notice route.
Regards S

110sb
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Re: Lower in Flooring in Attached Garage Conversion

by 110sb » Sat Apr 24, 2021 11:16 am

Thank you for the reply.

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