Double storey extension £££

[rebeccamg]

I know this is pretty hard to give an idea but we literally have no idea on cost! Anyone had a double storey extension? How much did it cost?

Nope, but we have had a 1.5 storey (room above garage) and the biggest outlay was for foundations which were required to be suitable for 2 storey (even in the single storey parts - which was most of it).

Therefore, if you can afford it, it's better value to go 2 storey as much of the money is below ground anyway!

Can I ask exactly what you had done and how much it was? X

A really rough guide is £130-150 per square foot.

Ours was about eighty grand for a side and rear two storey extension. Did include VAT, didn't include fitting kitchen/bathrooms.

Similar quite to mummytomog, although ours didnt include VAT but did include fitting of bathroom (that we supply). Part single storey, part double storey. Extra bedroom & small ensuite, extending kitchen and getting new utility rm doenstairs.

That's really helpful. Not sure in square footage...

£80k seems good for side and rear! Ours needs to include kitchen and bathroom upstairs so I think that will increase costs...

We got a kitchen diner, a utility, a new bathroom and a big en suite double bedroom out of it. Had to drop to single storey for about three metres of the rear extension next to our joined on neighbours. They wanted a ridiculous amount to fit the bathrooms though, in the end I've done them, but would have got someone else to do it rather than builders.

We added 36sqm on the ground floor and about 20sqm on the second floor.

Ah that's my dream extension! Might have to settle for just some of it. And have a kitchen diner with bedroom above and bathroom.

How long did it take? Whereabouts are you? Recommend your builders? X

It took about six months, but the last two of that involved a lot of fannying about and the original joiner was aghast that it took so long to finish (he left two months before the end of the build). We are in the south east. I would not recommend our builders. They are knobs. Luckily I am a relatively handy person, because otherwise I would be spending a lot of time trying to get them back to fix things. As it is, they haven't completely finished and are totally blanking us on when they can come and do the last waste pipes in the bathrooms.

Watching with interest....we had an architect friend round last night to look at our enourmous patio that we want to extend our kitchen into.....we live in a traditional victorian layout house, and he completely threw a curveball by asking if we've considered a double height extension - garden room / open plan kitchen (but we are keeping current 2 year old kitchen intact) plus new bedroom above, he reckons for under £100k (we're wiltshire), possibly much cheaper. He says it'll be the change in roofing that adds to the cost.

We've budgeted about 50k. The likely cost will end up at around 70k. That does included the kitchen (if not the appliances). We've done some of the work ourselves.