Extension single storey

Building prices for extension single storey

Total cost of project and m2 costs for having a single floor extension added to your home. The area of the house is usually specified by its internal floor area though sometimes it can be the external area. Also, pay attention in the detailed comments to what was and wasn't included in the build costs. A simple construction may be just a shell structure (basic plumbing, electrics and building work) whereas many people will specify the actual cost i.e. after you have put in all the fittings (e.g. new kitchen or bathroom/shower suite) furnished and decorated (including carpets or other type of flooring) the extension.

Building prices for extension single storey: Disclaimer
Detailed Description of WorkPrice/CostUnitsLocationLast Updated
Single storey extension to living space, no windows or doors, pitched roof. Knock through and make good inside. £5,000 item/job Surrey 2009-09-24
extention length 5910.width 4820.foundation walls are 3course inside wall.2 course outside wall.super structure 11 course high.with 1800 patio door. £1,500 item/job Nairnside 2009-08-24
Single story extension to lounge, pitched roof with double ridge marley tiles upvc facias all drainage, upvc windows/doors, all steel (inc calculation) and lintels, electricals, plastering and stud work. All materials for above. £13,550 item/job Northamptonshire 2009-07-27
sunroom, pitched tiled roof, pvc windows all round with french doors. one radiator and 4 double sockets and roof light. slabs round extension and all rubbish taken from site. 16 meters squared. £1,000 m2 Aberdeen 2009-05-29
30m2 Single storey extension. Remove 2 walls and install RSJ for kitchen and dining room. Shell only + plasterboad ceiling plus move soil stack. 6m opening to rear of extension with steel bean. Supplying own folding sliding door and window (extra £8000). No electrics or plumbing. £23,000 item/job Kent 2009-02-25
single story extension 20meters shell fixtures and fitting no rads move boiler and electric box plumbing and electric plus plaster fit rsj and knock out wall £17,000 item/job Westmidlands 2009-02-03
Remove existing conservatory and replace on same foot print a more substantial structure. Plumbing, electrics, three radiators, plastering etc. (Edited from previous submission to be in metre squared) £1,560 m2 Hampshire 2008-12-04
5 metre by 3.4 metre single story pitched roof extension with 2 velux rooflights, large patio doors. Construct internal walls to make a separate toilet, provide drainage, external retaining wall (6.5metres in length by 900mm high)and steps; pave area outside patio doors (12sq metres). Edit: Changed to price per meter 2 was £18500 £1,089 m2 Swansea 2008-12-01
Single storey Conventional pitched roof kitchen extension to provide Breakfast area.
Internal size 3.1 x 3.3 Metres.
Two windows and French Doors. Complete with heating and Electrics but no decoration or floor finish. Standard brick built.
Planning and building regs complied with.
No access problems but required relocation of water main.
£38,000 item/job North Surrey 2008-07-28
4.8x3.5 single storey 2 upvc windows and pair of French doors with pitched tiled roof (edit: changed price to per m2 Total was £18,000) £1,071 m2 Buckinghamshire 2008-07-07
25 square metres . Remove existing conservatory and replace on same foot print a more substantial structure. Plumbing, electrics, three radiators, plastering etc. £39,000 item/job Hampshire 2008-07-01
Central Heating: 2 radiators,1 rooms, 1 BATHROOM £20,000 item/job WEMBLEY 2008-06-16
Single storey side extension. Pitched roof with gable. En- suite bedrooom. Labour only in shower en- suite. 2 rads. Customer supplied windows. Patio to rear and paved path to side. £27,000 item/job Gillingham, Kent 2008-04-29
kitchen,pitched roof, 1 radiator,electrics,plumbing £10,000 item/job Cambridgeshire 2008-04-10
28m2 Kitchen extension; Timber Frame, block and render. Including new Kitchen, new Gas CH Boiler. 35m2 engineered flooring with underfloor heating. £40,000 item/job EH38 2008-03-26
4 radiators £35,000 item/job Norwich 2008-03-09
Extension to the kitchen Timber Frame, block and render. Including new Kitchen, new Gas CH Boiler. 35m2 engineered flooring with underfloor heating. £1,250 m2 EH38 2008-03-05
Single story extension, Pitched roof, Patio doors on two sides. One room bedroom, with private bathroom, no toilet. overall size 4.5m x 6m £15,000 item/job Yorkshire 2008-02-15
10m x2.4m ,200mm block wall shell with three openings,insulated concrete floor,50% new foundations,sloping roof,wet dash render,lead work coupes,not joinerwork or internal finish £16,500 item/job Fife 2008-02-01
one room+one batroom build including fundation, flat roof, under floor heating, new boiler, lights, 2windows+4doors rendering+plastering including all materials £42,000 item/job Croydon 2008-01-30
BED EXTENTION TOBE 3600 X 3000 X 2100 INTERNAL SIZES TO INCLUDE 2 OFF SOCKETS AND LIGHT PLUS 1 OFF SENSOR FOR ALARM 1 OFF DOOR 1 OFF WINDOW IN GOLDEN OAK UPVC FLAT FELT ROOF £6,200 item/job CANNOCK STAFFS 2008-01-09
Costs is really just for the shell as did much of the internal work/labouring my self. Floor area 20m^2 with pitched roof Includes all materials and additional labour Total cost of extension £12000 £594 m2 Nottingham 2007-11-02
Build 2 new exterior kitchen walls. Knock down existing kitchen wall to create a larger kitchen and a new utility room. The plans require that the existing kitchen wall is replaced with a RSJ.The single storey extension has a pitched tiled roof £25,000 item/job Northamptonshire 2007-10-24
Dig out & lay foundations for 3x walled structure at side of house. Perspex roof, fully plastered. 15m2 in total £341/m2 £5,300 item/job Southport, Merseyside 2007-10-16
Needed extra space for downstairs kitchen. Kitchen not included, supplied and fitted separately at additional cost of £5k £1,050 m2 Rotherham 2007-10-07
Needed more room for kids and a home office. 4.5x3.5m ground floor extension. Total cost £19000 £1,206 m2 Darlington 2007-09-04
Downstairs toilet and washroom. Interior needs finishing up Pitched roof 12 m^2 £12,100 item/job Worcester 2007-08-28
Double skin brickwork, inc mat, qualified builders and guaranties. £500 m2 Teesside 2006-12-18
Shell only £500 m2 Shropshire 2006-06-25
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