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Single Storey Extension Costs by City

Every UK city ranked by single storey extension cost, highest to lowest. National rates adjusted for regional pricing differences.

Other builder job types:

Garage ConversionInternal Wall RemovalPatio Construction

Where does your city rank?

#CityAvg. Costvs Avg
1Central London£20,300 – £55,100+45%
2Westminster£20,160 – £54,720+44%
3Kensington£20,020 – £54,340+43%
4Chelsea£19,880 – £53,960+42%
5Islington£19,600 – £53,200+40%
6Camden£19,460 – £52,820+39%
7Hackney£19,320 – £52,440+38%
8Hammersmith£19,180 – £52,060+37%
9Wandsworth£19,040 – £51,680+36%
10Richmond upon Thames£19,040 – £51,680+36%
11Fulham£19,040 – £51,680+36%
12Southwark£18,900 – £51,300+35%
13Lambeth£18,900 – £51,300+35%
14Wimbledon£18,900 – £51,300+35%
15Brixton£18,760 – £50,920+34%
16Stratford£18,760 – £50,920+34%
17Greenwich£18,620 – £50,540+33%
18Ealing£18,620 – £50,540+33%
19Kingston upon Thames£18,620 – £50,540+33%
20Walthamstow£18,620 – £50,540+33%
21Lewisham£18,480 – £50,160+32%
22Barnet£18,480 – £50,160+32%
23Enfield£18,340 – £49,780+31%
24Hounslow£18,340 – £49,780+31%
25Harrow£18,340 – £49,780+31%
26Bromley£18,200 – £49,400+30%
27Croydon£18,200 – £49,400+30%
28Bexley£18,200 – £49,400+30%
29Henley-on-Thames£17,920 – £48,640+28%
30St Albans£17,780 – £48,260+27%
31Sevenoaks£17,640 – £47,880+26%
32Guildford£17,500 – £47,500+25%
33Oxford£17,360 – £47,120+24%
34Woking£17,360 – £47,120+24%
35Winchester£17,220 – £46,740+23%
36Brighton£17,080 – £46,360+22%
37Tunbridge Wells£17,080 – £46,360+22%
38Watford£17,080 – £46,360+22%
39Hove£16,800 – £45,600+20%
40Reading£16,800 – £45,600+20%
41Chichester£16,520 – £44,840+18%
42Horsham£16,520 – £44,840+18%
43Slough£16,520 – £44,840+18%
44Newbury£16,520 – £44,840+18%
45High Wycombe£16,380 – £44,460+17%
46Maidstone£16,240 – £44,080+16%
47Basingstoke£16,240 – £44,080+16%
48Canterbury£16,100 – £43,700+15%
49Crawley£16,100 – £43,700+15%
50Bath£16,100 – £43,700+15%
51Cambridge£16,100 – £43,700+15%
52Milton Keynes£15,960 – £43,320+14%
53Worthing£15,960 – £43,320+14%
54Aylesbury£15,960 – £43,320+14%
55Chelmsford£15,960 – £43,320+14%
56Hertford£15,960 – £43,320+14%
57Southampton£15,680 – £42,560+12%
58Bristol£15,680 – £42,560+12%
59Stevenage£15,680 – £42,560+12%
60Harlow£15,680 – £42,560+12%
61Saffron Walden£15,680 – £42,560+12%
62Eastbourne£15,540 – £42,180+11%
63Portsmouth£15,400 – £41,800+10%
64Hastings£15,400 – £41,800+10%
65Margate£15,400 – £41,800+10%
66Folkestone£15,400 – £41,800+10%
67Bournemouth£15,400 – £41,800+10%
68Poole£15,400 – £41,800+10%
69Cheltenham£15,400 – £41,800+10%
70Southend-on-Sea£15,400 – £41,800+10%
71Luton£15,400 – £41,800+10%
72Basildon£15,400 – £41,800+10%
73Salisbury£15,120 – £41,040+8%
74Cirencester£15,120 – £41,040+8%
75Exeter£14,840 – £40,280+6%
76Dorchester£14,840 – £40,280+6%
77Stroud£14,840 – £40,280+6%
78Colchester£14,840 – £40,280+6%
79Bedford£14,840 – £40,280+6%
80Braintree£14,840 – £40,280+6%
81Solihull£14,700 – £39,900+5%
82Edinburgh£14,700 – £39,900+5%
83Gloucester£14,560 – £39,520+4%
84Swindon£14,560 – £39,520+4%
85Frome£14,560 – £39,520+4%
86Bury St Edmunds£14,560 – £39,520+4%
87Warwick£14,560 – £39,520+4%
88Leamington Spa£14,560 – £39,520+4%
89Taunton£14,280 – £38,760+2%
90Torquay£14,280 – £38,760+2%
91Weston-super-Mare£14,280 – £38,760+2%
92Falmouth£14,280 – £38,760+2%
93Norwich£14,280 – £38,760+2%
94Birmingham£14,280 – £38,760+2%
95Sutton Coldfield£14,280 – £38,760+2%
96Plymouth£14,000 – £38,000Avg
97Truro£14,000 – £38,000Avg
98Penzance£14,000 – £38,000Avg
99Yeovil£14,000 – £38,000Avg
100Barnstaple£14,000 – £38,000Avg
101Ipswich£14,000 – £38,000Avg
102Peterborough£14,000 – £38,000Avg
103Great Yarmouth£14,000 – £38,000Avg
104Kings Lynn£14,000 – £38,000Avg
105Northampton£14,000 – £38,000Avg
106Coventry£13,720 – £37,240-2%
107Worcester£13,720 – £37,240-2%
108Lichfield£13,720 – £37,240-2%
109Market Harborough£13,720 – £37,240-2%
110Glasgow£13,720 – £37,240-2%
111Aberdeen£13,720 – £37,240-2%
112Musselburgh£13,720 – £37,240-2%
113Shrewsbury£13,440 – £36,480-4%
114Nottingham£13,440 – £36,480-4%
115St Andrews£13,440 – £36,480-4%
116Leicester£13,300 – £36,100-5%
117Manchester£13,300 – £36,100-5%
118Chester£13,300 – £36,100-5%
119Altrincham£13,300 – £36,100-5%
120Wilmslow£13,300 – £36,100-5%
121York£13,300 – £36,100-5%
122Harrogate£13,300 – £36,100-5%
123Cardiff£13,300 – £36,100-5%
124Wolverhampton£13,160 – £35,720-6%
125Hereford£13,160 – £35,720-6%
126Stafford£13,160 – £35,720-6%
127Derby£13,160 – £35,720-6%
128Loughborough£13,160 – £35,720-6%
129Kettering£13,160 – £35,720-6%
130Wellingborough£13,160 – £35,720-6%
131Knutsford£13,160 – £35,720-6%
132Leeds£13,160 – £35,720-6%
133Ilkley£13,160 – £35,720-6%
134Inverness£13,160 – £35,720-6%
135Stirling£13,160 – £35,720-6%
136Walsall£13,020 – £35,340-7%
137Salford£13,020 – £35,340-7%
138Dudley£12,880 – £34,960-8%
139Telford£12,880 – £34,960-8%
140Kidderminster£12,880 – £34,960-8%
141Lincoln£12,880 – £34,960-8%
142Corby£12,880 – £34,960-8%
143Warrington£12,880 – £34,960-8%
144Stockport£12,880 – £34,960-8%
145Macclesfield£12,880 – £34,960-8%
146Newcastle upon Tyne£12,880 – £34,960-8%
147Sheffield£12,880 – £34,960-8%
148Dundee£12,880 – £34,960-8%
149Perth£12,880 – £34,960-8%
150Paisley£12,880 – £34,960-8%
151Livingston£12,880 – £34,960-8%
152East Kilbride£12,880 – £34,960-8%
153Dunfermline£12,880 – £34,960-8%
154Penarth£12,880 – £34,960-8%
155Stoke-on-Trent£12,600 – £34,200-10%
156Chesterfield£12,600 – £34,200-10%
157Grantham£12,600 – £34,200-10%
158Liverpool£12,600 – £34,200-10%
159Skipton£12,600 – £34,200-10%
160Ripon£12,600 – £34,200-10%
161Falkirk£12,600 – £34,200-10%
162Fort William£12,600 – £34,200-10%
163Oban£12,600 – £34,200-10%
164Kirkcaldy£12,600 – £34,200-10%
165Hamilton£12,600 – £34,200-10%
166Newport£12,600 – £34,200-10%
167Belfast£12,600 – £34,200-10%
168Mansfield£12,320 – £33,440-12%
169Bolton£12,320 – £33,440-12%
170Crewe£12,320 – £33,440-12%
171Bury£12,320 – £33,440-12%
172Kendal£12,320 – £33,440-12%
173Durham£12,320 – £33,440-12%
174Gateshead£12,320 – £33,440-12%
175Hexham£12,320 – £33,440-12%
176Whitley Bay£12,320 – £33,440-12%
177Huddersfield£12,320 – £33,440-12%
178Wakefield£12,320 – £33,440-12%
179Beverley£12,320 – £33,440-12%
180Ayr£12,320 – £33,440-12%
181Kilmarnock£12,320 – £33,440-12%
182Greenock£12,320 – £33,440-12%
183Elgin£12,320 – £33,440-12%
184Motherwell£12,320 – £33,440-12%
185Peterhead£12,320 – £33,440-12%
186Swansea£12,320 – £33,440-12%
187Barry£12,320 – £33,440-12%
188Lisburn£12,320 – £33,440-12%
189Holywood£12,320 – £33,440-12%
190Preston£12,040 – £32,680-14%
191Wigan£12,040 – £32,680-14%
192Lancaster£12,040 – £32,680-14%
193Rochdale£12,040 – £32,680-14%
194Oldham£12,040 – £32,680-14%
195Sunderland£12,040 – £32,680-14%
196Morpeth£12,040 – £32,680-14%
197South Shields£12,040 – £32,680-14%
198Bradford£12,040 – £32,680-14%
199Doncaster£12,040 – £32,680-14%
200Rotherham£12,040 – £32,680-14%
201Halifax£12,040 – £32,680-14%
202Dumfries£12,040 – £32,680-14%
203Wrexham£12,040 – £32,680-14%
204Bridgend£12,040 – £32,680-14%
205Caerphilly£12,040 – £32,680-14%
206Bangor£12,040 – £32,680-14%
207Newtownabbey£12,040 – £32,680-14%
208Blackpool£11,760 – £31,920-16%
209Carlisle£11,760 – £31,920-16%
210Middlesbrough£11,760 – £31,920-16%
211Darlington£11,760 – £31,920-16%
212Stockton-on-Tees£11,760 – £31,920-16%
213Berwick-upon-Tweed£11,760 – £31,920-16%
214Hull£11,760 – £31,920-16%
215Scarborough£11,760 – £31,920-16%
216Barnsley£11,760 – £31,920-16%
217Llandudno£11,760 – £31,920-16%
218Pontypridd£11,760 – £31,920-16%
219Cwmbran£11,760 – £31,920-16%
220Carrickfergus£11,760 – £31,920-16%
221Burnley£11,480 – £31,160-18%
222Redcar£11,480 – £31,160-18%
223Grimsby£11,480 – £31,160-18%
224Scunthorpe£11,480 – £31,160-18%
225Aberystwyth£11,480 – £31,160-18%
226Bangor£11,480 – £31,160-18%
227Neath£11,480 – £31,160-18%
228Colwyn Bay£11,480 – £31,160-18%
229Brecon£11,480 – £31,160-18%
230Tenby£11,480 – £31,160-18%
231Derry£11,480 – £31,160-18%
232Newry£11,480 – £31,160-18%
233Hartlepool£11,200 – £30,400-20%
234Carmarthen£11,200 – £30,400-20%
235Haverfordwest£11,200 – £30,400-20%
236Rhyl£11,200 – £30,400-20%
237Ballymena£11,200 – £30,400-20%
238Coleraine£11,200 – £30,400-20%
239Craigavon£11,200 – £30,400-20%
240Antrim£11,200 – £30,400-20%
241Larne£11,200 – £30,400-20%
242Merthyr Tydfil£10,920 – £29,640-22%
243Omagh£10,920 – £29,640-22%
244Enniskillen£10,920 – £29,640-22%
245Downpatrick£10,920 – £29,640-22%
246Cookstown£10,920 – £29,640-22%
247Dungannon£10,920 – £29,640-22%
248Armagh£10,920 – £29,640-22%
249Strabane£10,640 – £28,880-24%
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