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
ground works, brickwork, two doubled glazed French doors,flat roof, plastering, electrics, plumbing and decoration also all rubbish taken from job £18,000 item/job Luton,beds 2011-06-28
I had my extension built by smart build Bristol the work was carried out to a very high standard and at a very reasonable rate i had previous quotes which some came in through the roof as the extension room was only 4m by 3m Andy and the team carried work out amazingly professional I was a bit apprehensive at first as Andy the boss is only 25 but my god does he have amazing ideas and knowledge would highly recommend calling him on 07809222098 builder Bristol £14,500 item/job Bristol 2011-06-22
a kitchen extension, one radiator, £30,000 item/job London 2011-05-20
3m x 5m external size price for basic shell of a pitched roof single storey extension £1,650 m2 Ely 2011-04-24
10 m2 kitchen diner, brick & tile, 2 windows, 3m glass connecting doors, gas, electric, water, new concrete paths. central heating radiator, Date.2007-06-15 £15,000 item/job York 2011-03-11
To include: foundations, brick, block-work, insulation, concrete/timber floors, doors, windows, flat roof, drainage, fascia, guttering, plasterboard/skim, 2nd fix timber. But excluding - plumbing/heating, electrics, decorating. 4x3m minimum area. www.medway-bs.co.uk £1,000 m2 Kent 2011-03-08
kitchen/dining room extension 25m2 in total including fitting of kitchen 2 radiators,move boiler,12 spot lights,bi fold screen doors,3 velux windows full decoration all planning etc taken care of had 4 quotes ranging from £30000 to £48000 went with the cheapest quote very happy with the work completed on time and a very good standard we used complete building solutions 07796370973 £30,000 item/job Cramlington 2011-02-18
floor extension works 3 bedrooms bathroom plumbing electric stairs everything no paint, 9\6area wc, bath, 4 radiators, 5 doors, 7 windows, skirting boards, coving very professional job, on time, high standard 07852625752 £25,000 item/job Petwrborough 2011-02-01
groundwork,drainage,plumbing,electrics,plastering,roof and knock through ready to decorate, excellent builder and very tidy, would recommend to anyone...his name j c walsh building services 07748324257 £925 m2 Chelmsford 2011-01-10
Just finished a single storey extension to enlarge a kitchen with velux window fitted. client very happy £1,000 m2 Sutton coldfield 2011-01-10
walk-in bath room with separate toilet all electrical,plumbing,two radiators etc, £20,000 item/job Leicester 2010-12-08
move kitchen wall out 1mt (4x1) move boiler, gas meter, electrics, water. £35,000 item/job Berkshire 2010-11-12
Extension of current kitchen Diner by 8"x8" into patio area, plus extended into existing garage to create a new open plan kitchen, dining & living space. Also built a new garage and utility. £35,000 item/job Coventry 2010-10-24
to built extension 3m by 10m £12,000 item/job West midlands 2010-10-20
We have just had a single storey extension completed by Carl Williams Construction . It has Half rendered and half dressed local stone outside . dot n dab plastered inside with pine t&g ceiling all electrics, heating. the roof is flat and has been covered in grp fibreglass and used floor joists in roof as been used as balcony with railings all round and door into upstairs hallway. Absolutely fantastic finishing all round would recommend to anyone £32,000 item/job Cumbria 2010-10-01
size 4.5m x 7m underfloor heating off main boiler glass fibre roof 4 double plugs 8 down lighters 1 telephone point 1 skylight 2double glazed windows 2m x1.5m double doors 2mx2m 1double glazed window 1.5mx1.5m pebble dashing £23,000 item/job Lancashire 2010-09-26
to include-foundations, brick, block work, insulation, concrete/timber floors,doors, windows, roof, drainage, fascia, guttering, plasterboard/skim, 2nd fix timber, but excluding - plumbing/heating, electrics, decorating. 12m2 minimum area £925 m2 Leicestershire 2010-09-19
Single storey extension to bungalow. External diam.4m by 7m approx. All works included except decoration and provision of bathroom fittings although plumbing and fitting of sanitary ware included. Pitched and tiled roof. To provide bedroom and bathroom. Some works needed to existing building to provide entrance to new part.Such as repositioning window and radiator, blocking up 2 windows not now needed. New Electric consumer unit as required. Price includes VAT. Plans drawings and building control cost extra ( about £1000) £32,000 item/job W Norfolk 2010-09-13
3m x 3m one storey to rear to make bigger kitchen. All building work including roof, wiring, plumbing, plastering and new kitchen. Very happy with finished addition to my home. It was done by a Nottingham based company called Charles Francis. Their number is 01773 713344 or 07814004238 £18,000 item/job Nottinghamshire 2010-09-01
4 BY 5.. PITCHED ROOF..... GABLE ALL GLASS/THREE FLOOR TO CEILING WINDOWS... PLUS THREE VELUX ROOF WINDOWS. NO FLOOR FINISH... 8/SPOT LIGHTS/TWO DOUBLE P/POINTS. £27,500 item/job Brecon 2010-08-16
10m2 single storey extension adjacent to kitchen, knock down external wall through into new extension 4 rsj, new floor through extension and old kitchen, new roof and velux window on utility room, complete rewiring for old kitchen and extension and insulate all walls in old kitchen and utility with 50mm Kingspan, plastered all walls, new window and door. All completed to building regs £7,000 item/job South Wales 2010-07-31
2nd story ext with tiled roof to match the first story has adequate foundations .ext size 8ft x 10ft plus 1 window. bathroom to open onto bedroom. external finish rendered. existing plumbing soil etc 15ft away £15,000 item/job Malvern 2010-05-10
Just had a fantastic single storey extension undertaken (20m2) to provide a dining area to the kitchen. All foundation, brickwork, flat roof over with Velux, all electrical and plumbing works, plastered out plus all finishes to include French doors. It has made our house. Would recommend builder to anyone. Works done by Charles Francis Building Services. 07814004238. £12,600 item/job Nottingham 2010-04-24
3M x 2M Single storey extension with single pitch roof to kitchen including knock through and installation of 5M steel beam and supporting columns. 3 No Velux roof lights in sloping ceiling. Brick up 2 windows. £12,800 item/job Manchester 2010-04-14
4M X4M INCLUDING ROOF,2 WINDOWS, BLOCK AND BEAM FLOOR, WEYROCK FLOORING WITH INSULATION, TOILET, SHOWER, 1 BEDROOM, ELECTRICS, £16,000 item/job NEWCASTLE UPON TYNE 2010-04-06
extended kitchen, 1 radiator £20,000 item/job Reading 2010-03-25
Architect's visit, draw up plans and obtain planning and building control approvals from the authorities = £1000, Planning & building control application fees separate. £25,000 item/job London 2010-03-17
remove old extension, new outer brickwork, install new complete roof and install internal French doors. extension size: 3m x 3m £4,000 item/job Norfolk 2010-03-12
to make a single storey extension with toilet, shower and hand wash. one radiator £20,000 item/job London,E17 2010-03-04
building extension on flat roof 3 radiators 1 bathroom lighting 3 4x4 double glazed windows roof extension size 4 metre x 10.5 metre £10,000 item/job Christchurch dorset 2010-02-16
to include-foundations, brick, blockwork, insulation, concrete/timber floors, doors, windows, roof, drainage, fascia, guttering, plasterboard/skim, 2nd fix timber, but excluding - plumbing/heating, electrics, decorating. 12m2 minimum area £950 m2 Nottingham 2009-12-27
24 square meter extension to side of house 2 rooms 1 dining 1 utility small hallway window in hallway front and back room 3 radiators full electrics spots fitted in both rooms with four double power points in large room and 3 in small room and 1 in hall rcd breaker to cover extension all foundation work concrete poured brickwork and wooden kit with brickwork and rough cast finish and relocation of Gas meter £24,300 item/job Glasgow 2009-12-17
3 rooms kitchen utility and garden room £25,000 item/job Leicester 2009-11-29
12 metre square internal floor size. Rendered external finish, solid Celcon block construction, battens & Kingspan, plasterboard and skim. First and second fix electrics (white plastic electrical fixings). All kitchen plumbing and gas inc. column rad. Good quality Nordan double doors. Pitched roof inc. two skylights. Soak-a-way. Includes knocking through into existing building, inserting lintels etc, though making good on extension side only(!). Does not include internal wall decoration or floor covering. Builder did not move soil stack so it's boxed in through our extension. He moved a drain though and left boiler condensation pipe draining onto a paved area! This caused problems getting regulations cert but rectified by friendly plumber who diverted pipe into soil stack. Used cheaper chipboard rather than ply on the floor meaning I had to buy the more expensive tiling adhesive and grout to avoid cracking. Left rubbish behind. Expensive job but hopefully good quality other than above (time will tell)! Builder's favourite saying 'I haven't taken for that'. :-) £18,970 item/job Cheltenham 2009-10-17
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
Single story extension to lounge, pitched roof with double ridge Marley tiles upvc fascias all drainage, upvc windows/doors, all steel (including calculation) and lintels, electrical, 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 + plasterboard 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 roof lights, 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 bedroom. Labour only in shower en- suite. 2 radiators. 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

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