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Extensions

1st floor extension

Anonymous user 23/02/2024 - 3.06 PM

I realise there are many variables that can predict the answer, but what I am wondering is if there was any standardisation back in 2010 that stipulate standards (for Scotland) for the below, if builder and architect followed them? Looking at a 1950s house with a 2010 ground floor extension. Do you think it would be possible to construct a bedroom and showroom ensuite on top? Space is circa 3mx6m and the shower room would be next to current bathroom or above the 2010 ground floor cloakroom. I'd like to think the roof timber structure and tiles can be reused as it's the same pitch as the 1950s house. Only knock through would be for the door and access in attic level so a second loft hatch doesn't need to be installed. I know foundations is the big question in regards to this, but also read that something may be in place by 2010 to say they have to be deep enough.

Are you a tradesperson and able to answer this question?

1 Answer

Moloney Contractors Limited

Rating: 4.8 out of 5

Chippenham

Hi, building regulations in the UK for the last 30-40 yrs would of required foundations for any extension regardless of it being one or two storeys to be excavated to solid ground and at a depth to be at least 900mm deep. Then either concrete poured in mass to produce a trench fill foundation or concrete poured to a thickness of 225mm then concrete blocks laid up to ground level to produce a strip foundation. So long as the original extension was passed off by building control, the foundation would be sufficient to carry a single storey or two storey extension. You should be able to get hold of the original plans and the building regulation certificate from your local authority and this should then assure you that the work was carried out to the required level. Either way the building control for the proposed new works, might ask for an inspection hole to verify the original foundation depth. I hope this helps Best regards Brendan

Answered1 December 2016