Extend my garage

[crankedup]

I have a single garage attached to the side of my house, I would like to extend it by removing the external garage wall to the boundary of my house. I have about 2.2m of dead ground beside the garage which I want to utilise for the extension.

I assume the existing flat roof will be in its entirety to be removed along with the existing external wall and garage door. Extend concrete floor into new extension, build new wall to existing height, build new flat roof structure and fit double width garage door. Total length of existing garage is around 7.10m.

Pure gues from me based upon the 'index finger in breeze' method is £5K.
Is this somewhere around the mark or completely off piste?
Thanks for any inputs.

[mcg_]

I recon more than 5k unless you're good friends with all the trades involved

[crankedup]

mcg_ said:

I recon more than 5k unless you're good friends with all the trades involved

Unfortunately it won't come under 'mates rates' it's going to be employed labour.

[kiethton]

Triple it and you won't be far off I reckon, especially if you're in the South East.

[crankedup]

kiethton said:

Triple it and you won't be far off I reckon, especially if you're in the South East.

Fortunately we are in East Anglia, 15k !! seriously? Jeeezz builders around here don't drive Lambo's.

[oldnbold]

I live in the east midlands and extended my garage 3 years ago, I did have a tiled roof so will be slightly more expensive and I spent £12k. That was with me paying a builder on a day rate and me labouring for him.

I doubt you'll be far adrift of £10k.

[ozzuk]

Don't forget you'll need new foundations, I'd agree you've no chance at 5k unless you were doing it yourself, 3k could be eaten up just on the groundworks.

[crankedup]

Thanks guys, looks like I'm living in the 1990's with my idea of cost .

[maccas99]

I've got to do exactly the same thing with our garage. It's a bungalow with an attached garage that I want to extend level or just off from the front of the property. It's all single skin so in my eyes demolishing it and starting again would be the best approach (unless you tell me different).

We are planning on dividing the space in half putting a utility at the back and leaving the front to have racking either side.

I was going to budget about 20-25k to include new foundations, construction of new walls, insulation, plumbing, electrics, roof, garage door and patio doors at the back.

Does that sound about right?