Extension costs - interesting.......

[dirty boy]

Further to the last thread, i've enquired about extension costs. I've just had this quote back from a big local building company.

Substructure Works
Enabling Works 1 item 500.00 500.00
Substructure 18 m2 75.00 1,350.00
Drainage 18 m2 15.00 270.00
Sub Total 2,120.00

Superstructure Works
External Wall (incl. Lintels etc.) 50 m2 90.00 4,500.00
Roof 18 m2 225.00 4,050.00
Windows 2 nr 500.00 1,000.00
External Doors 1 nr 250.00 250.00
Facia, Soffts & Rainwater Goods 1 item 500.00 500.00
Sub Total 10,300.00

Internal Works
Internal Doors 1 nr 125.00 125.00
Wall Finishes 30 m2 16.00 480.00
Ceiling Finishes 18 m2 16.00 288.00
Fittings 1 item 2,500.00 2,500.00
Heating & Water Installation 1 nr 1,000.00 1,000.00
Electrical Installation 1 nr 750.00 750.00
Sub Total 5,143.00

Garage Fit Out
Garage Door 1 nr 450.00 450.00
Floor Screed 18 m2 65.00 1,170.00
Electrical Installation 1 nr 500.00 500.00
Sub Total 2,120.00

On Cost
Architects / Planning 1 item 750.00 750.00
Scaffolding 1 item 600.00 600.00
Building Regulation Fees 1 item 500.00 500.00
Total On Costs 1,850.00

Approximate Construction Cost 21,533.00
+ 10% contingency 2,155.00
+ Vat 27,241.00





this was for a two storey extension - garage below, bedroom above, 6m x 3m

He said a 'one man band' builder would be able to do for up £5k less and possibly no vat!

So for 36m2 worked out at £757 per m2.

Not bad?

[The jiffle king]

Just from reading PH for the past few years, I'd say this is a good cost and includes VAT. I recall 1000 per SqM being the average, so whilst not a builder or a person who knows everything about building, I think this is a fair price. (I recognise that some of this is a garage, so it will be less than the average)

T-J-K

[thehos]

dont forget, £1000 per m2 is ground floor, I dont double it for two storey, you still need a roof and footings 1 or 2 storey

[Slagathore]

That seem a pretty good price for a double story extension.

[Busamav]

Too good to be true .

[dirty boy]

Busamav said:

Too good to be true .

I think you lot are forgetting where I live.

It's a genuine quote.

And don't forget vat needs to be added on.

[Busamav]

IF it is a quote , i would save £1345 gross and not have a screeded floor finish in the garage

Edited by Busamav on Saturday 2nd May 14:22