Would it be cheaper to do a two storey extension rather than two separate one storey extensions? Also, what are the foundation costs for a 1, 2 or 3 storey extension? I assume they don't double or triple?
TIA Suzanne
yes, sligthly.
not much compared with everything else.
PS watch out for loss of space if you need a second staircase..
| Also, what are the foundation costs for a 1, 2 or 3=20 | storey extension? I assume they don't double or triple?
I recently discussed this point with my son in law who is in the middle of extending, and his answer was hardly any increase. He put two storey foundations in for a single storey extension, just in case.
--=20 Dave Fawthrop Sick of Premium SMS scams, SMS marketing, Direct marketing phone calls, Silent phone calls?=20 Register with
Two storey is somewhat cheaper, as you only need one roof and the foundations and lower storey barely need to be different. You use half the land, too, which is a bigger saving.
However, it depends what you need the space for. Most people prefer to sleep upstairs so that they can leave their windows open and not have axe wielding murderers popping in for a chat. Most people prefer their reception rooms downstairs so that they are not forever trooping up and down the stairs.
Christian.
According to my local BCO, foundations are the same for one or two storey extensions these days. 1 metre default, with extra depth according to ground conditions. Of course difficult ground may need a raft. Building 2 single storey extensions is double the foundations, which is can be a few grand in cost. Simon.
Yes ... as you only pay for 1 roof and 1 set of foundations.
Impossible to say foundation costs without knowing what type of foundations you are going for .. standard strip, trenchfill, raft, mini-pile etc. If you want a guide as around neighbours - that will give a guide to typical foundation requirements - but no guarantee until you start to dig what you have there.
Rick
A two-storey extension can look more as though it was part of the house originally, especially if the planners and the budget permit a pitched roof to be integrated into the main house roof. That, and preserving more of the garden, mean it is likely to be better for enhancing the resale value of the property.
It can also be better for keeping the number of reception vs bedrooms in balance.
The main problem is usually access to the new rooms; it's usually acceptable to have reception rooms leading off one another both from lifestyle and Building Regulations fire escape points of view, but that works less well with bedrooms on upper floor.
Owain
Is anybody up for a quick poll ?
Is there anybody here, who isn't a planner, who thinks an extension is better if it is *not* closely integrated and, if so, why ?
I really can't see why planners are so dead set on extensions being built in a way that emphasizes that an extension has been added rather than minimizing the impact. It seems, to me, to defy common sense.
Cheers,
John
I agree. But my colleagues in Building Control don't seem so keen. I don't understand why? Suz,
If you mean requiring the front wall of a side extension to be set back
1m or so from the front of the house, then the reason for this is to avoid the appearance of terracing in road of semis.
Sounds reasonable in that situation, but there's a house down the road from me which is detached, but "because it's in a conservation area" the front wall had to be moved back 30cm and the side extension isn't big enough to make the resulting house look like a pair of semis or anything.
Very weird,
Cheers,
John
It also masks the join between supposedly matching bricks, and mortar with possibly differently sourced sand. The planners 20 years ago wanted me to stagger the front, but I didn't. the joint hasn't shown, but for the first 10 years or so it was masked by the drainpipe from the guttering.
No, I don't.
I had an old house with a less old roof and a modern extesnion. UI ripped it all down and was fiorced to put up what looked like an old house with a slightly less old extension.
Complete bollocks.
Frankly, if I wanted to extend a period house I'd want to extend it as closely matching the original..I hate seeing old timber framed houses with conservatories in UPVC tacked on.
Its presumably in their book of rules.
Wait till you see our local monstrosity. A 16th century timber framed house with a 21st century timber clad packing crate tacked on the side, complete with HUGE pcture window. Surrounded by enough sodium lamps to be seen for miles.
Its LISTED too. AND it got third prize in RIBA awards last year.
Google 'wakelyns' for all the pseudo bollocky artistic prententiousness.
>
Winner of the Stirling Prize - Scottish Parliament.
Voted onto Top 10 Buildings to be X Listed for Demolition - Scottish Parliament.
Owain
There is a remarkable similarity.
Can't find it. Can you paste a link?
The bad news is that the bottom of the garden is heavy clay.....
This rule was applied to us, despite our semi being on the corner plot. Strangely another extension in the middle of the row was allowed without a "set-back".
Mark.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.