ANOTHER kitchen conversion..... prices?

[DanoS4]

Well, we're looking at a conservatory demolition and single storey rebuild.....



Sizes are about 3x4m.... I've been getting initial ideas of about £500+vat per sq/m..... BUT I'm toying with the idea of timber frame.....
There's already a concrete base in place (subject to it being good enough).....

Is there any price difference between brick /double skin and timber frame? Are there any benefits?
This is part of a MUCH bigger renovation anyway

Then looking at knocking through from the house (via an existing double window - so a lintel will be required). The new kitchen roof will have velux as well.
I'm assuming planning will be required due to it now being a permanent addition rather than a conservatory.

Here's a little sketch I did (in SweetHome 3D) -


Would welcome you thoughts....

[ikarl]

Reflection from the window (behind the sofa) on your tv in the living room?

[DanoS4]

Yeh, it's not intrusive thankfully. And in cinema mode, the curtains will be shut

[Busa mav]

Whoever gave you the budget of £500 /m2 must have been in a coma for 20 years

[DanoS4]

Got the price from another thread on here. Why what should it be?

[subsea99]

£1000-1500 per m2 is average depending on location and quality of materials

[bigdom]

The £500 sqm was I assuming from the garage thread? As mentioned, you'll be into 1-1.5k sqm.

The slab will only be useable if already insulated, if not, and at the same floor level as house, it's coming out.

Building regs will want a minimum of 60mm of celotex in or under it for 'u' value. If you stepping down into it, you could still have options, although you'll need roughly 125mm for insulation and poured screed.

[BoRED S2upid]

Your looking at £1000/sq m depending on builder and where you live in the country, further north this price can be achieved finished to a high standard.

You will be very lucky if you can use the slab we had a 20sq m single story side extension last year and building regs insisted the footings were deep enough for a double height extension which costs more. What's the chance of your conservatory slab having such foundations?

Also timber frame ie oak will cost more than brick. Bricks are cheap.

[DanoS4]

Thanks for this - I thought it was rather cheap (ie too good to be true).

Granted, we live on the Welsh border, so prices are a bit cheaper, but not that much

I wasn't actually thinking of Oak frame, more so boggo timber. I'm assuming that the cost is offset by the speed of building with prefabricated frames.
However, I don't mind brick either.

Yes, cost is a big factor here, but there's also a lot of I want to do some work myself. I'm by no means a skilled craftsman (my area's music production!), but I do enjoy learning new things and putting them into practice. I also enjoy wielding a sledgehammer

So my intention is to get as much of the prep-work done as I can before the trades come in. (or at least with their instruction as to what I should do)

With reference to the base, it wouldn't surprise me if it's got to come up - we have the house that Jack built, so if a corner could have been cut, no doubt it will be in the base. There's no step down - it's all level at present. But I'm sure a builder will make light work of what needs to be done
But thanks for the clarification on pricing

Edited by DanoS4 on Wednesday 4th March 09:50