Exterior wall construction question

I am considering the idea of building my own ground-floor extension,
in consultation with relevant professionals for the specification, of
course. I've got a mid-terraced house build in 1900 in North London,
and it seems to me that it would be prudent to make the external walls
from something light (perhaps a timber-based construction?) so that I
don't have to dig too far down. This might be easier than a block or
brick construction, and would minimise party wall complications with
What do you think? My main worry is durability, I suppose.
Reply to
No reason why you can't build a timber framed extension (think American house). But the building control officer may still require deeper foundations than you would expect. You could probably build it on a concrete slab to reduce the digging depth. It may not add as much value to the house as a masonry build though. However, if it's rendered afterwards it would not *look* like a timber extension ! Alternatively, you could build a "conservatory" on one one the light foundation methods that are available. A conservatory should have an external door from the house, but may people take these doors off. This has been done on many home makeover TV programmes ! Simon.
Reply to
The depth of the foundations has little or nothing to do with supportung the weight, and everything to do with finding stable subsoil to start from.My house is timber:I still had to go down over 2m in places due to tree roots.
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The Natural Philosopher
Thanks - that's good to know. Think I'll try a chat with buildings regs.
I'm a bit averse to building a conservatory because I'm hoping to live in the extension all year round, and would imagine anything substantially glazed would cost a fortune to heat (and we're rather overlooked by other houses).
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I have heard of people who have built conservatories, the quietly put "proper" roofs on them, as well as removing the doors to the "main" house. I don't know how get-away-with-able that is, anyone like to comment? You'd also need not to impose a greater load on the atructure than it was able to take.
Regards Richard
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