Small Extension (3mx2m) Quotes

How much on average for a 3m x 2m extension on back of a terrace house, with a toilet.

I was quoted £55k approx in the SE, but for a 3mx2m with a toilet at the back of a terrace house seems quite high, especially when I have to provide the tiles for the flooring and toilet and basin.

Thoughts?

Asked by Vanessa on 15th Jan 2024
Expert Trade Answers
"Have you asked the builder for a breakdown of the costs involved? I know material costs have risen quite high, but that does seem a little high.
Alan"
Answered on 15th Jan 2024 - Member since Jan 2024 - report
"Yes that is very, very high. A rough estimate for a job of that size would be £20,000. That would include all labour and materials required to finish the job."
Answered on 15th Jan 2024 - Member since Jan 2023 - report
"Typical costs you can expect to pay:
For a small (15m²) rear house extension, the cost is around £30,000 – £42,000. For a medium (30m²) rear house extension, the cost is around £40,000 – £56,000. For a large (50m²) rear house extension, the cost is around £100,000 – £140,000.

So yes, £55k seems very high, especially if everything isn't included"
Answered on 16th Jan 2024 - Member since Jan 2024 - report
"I do think the price for this is really expensive especially not supplying tiles toilet and basin, usually prices are charged at £4,500 to £6,500 per square meter depending on what your are getting, but for a 3m by 2m the price is high, would recommend getting more quotes to see the difference. If you have anymore information please send me a message"
Answered on 16th Jan 2024 - Member since Jun 2022 - report
"Tbf that seems about right but if was me I would include the matrails in with that price does not seem fair if you have to get the matrails at that price they gave"
Answered on 17th Jan 2024 - Member since Jan 2024 - report
"Hi seems high tbh . Are the foundations traditional strip foundations or piling being done ?? I would say approx £25/30 k but maybe more depending on windows doors specification etc .

Kindest Regards

James Barney

Building solutions"
Answered on 15th Jan 2024 - Member since Jan 2024 - report
"Hi. To be honest with you the price is high for that. I can do it less than that. Text me"
Answered on 15th Jan 2024 - Member since May 2020 - report
"Hi Vanessa,

Yes that price is too much depending on structural calculations but i would say your looking at around £ 50k all in

Regards Lee
Lcd Design And Build Ltd"
Answered on 15th Jan 2024 - Member since Oct 2023 - report
"It varies due to footings or might need a raft footing which is going to be a lot more than just a concrete footing and access to the job and the specification of the Finnish so I would have a conversation with the customer and come to a amicable agreement"
Answered on 15th Jan 2024 - Member since Jan 2024 - report
"Approx 12-15k for build to plastered finish then coat of services and facilities max 10k so 25k tops but I’m based NWest"
Answered on 15th Jan 2024 - Member since Apr 2017 - report
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