UK Tender Price and Building Cost Indices

Release date 1 July 2026

Tender Price and Building Cost Indices

This page contains a chart and table of historic, current and forecasted UK tender price and building cost indices.

The indices given here are provided in good faith as an indicative guide only and should be used with understanding. You should also consider other sources of information. Costmodelling Limited cannot accept any liability for any work produced using these figures. You should always seek professional advice in producing costs for any construction project.

Please also be aware that some of these figures may change as more data becomes available, particularly the latter date figures when provisional data is superseded by more firm data.

The indices are based on Year 2000 = Index 100

  • The current date is: 3rd Quarter 2026
  • The current tender price index is: 233
  • The forecasted rise in tender price over the next 12 months is: 2.60% per annum
  • The current building cost index is: 248
  • The forecasted rise in building costs over the next 12 months is: 2.80% per annum

Tender Price Indices index the price the client pays to have have a building project constructed. They can be used to update the cost of a building project, or obtained building contract price, from one time period to another time period. They are also normally used as a basis to calculate an allowance for future tender price inflation to include in a building project budget for the period from the base date of the budget to the proposed construction start date.

Building Cost Indices index the costs to the contractor in constructing the building, i.e. the building contractor's own internal costs. They mainly index the cost of construction labour and materials. They are normally used as a basis to calculate an allowance for future building cost inflation to include in a building project budget for the period from the proposed construction start date to the proposed construction completion date.

indices

Date Tender price index Building cost index
2000 100 100
101 101
102 102
103 103
2001 104 104
105 105
106 107
108 109
2002 110 111
112 113
114 115
116 116
2003 118 117
119 119
121 120
122 121
2004 123 122
124 123
126 124
129 125
2005 131 127
133 129
135 131
138 133
2006 141 135
143 137
144 139
146 140
2007 148 142
150 144
151 146
152 148
2008 152 149
152 150
153 151
153 152
2009 151 153
148 153
146 152
144 151
2010 142 149
141 148
140 148
139 148
2011 138 149
138 150
138 151
137 152
2012 137 153
137 154
137 155
136 156
2013 136 157
136 158
136 159
137 159
2014 138 160
139 161
141 162
143 162
2015 146 162
149 163
152 164
156 164
2016 159 165
162 166
165 167
168 168
2017 169 169
170 170
171 171
172 172
2018 173 174
174 176
175 177
177 178
2019 178 180
179 182
181 184
183 185
2020 186 185
187 186
186 187
187 187
2021 188 189
189 191
191 195
192 199
2022 196 204
200 209
204 216
207 221
2023 209 225
211 228
213 229
215 227
2024 216 228
218 233
219 235
221 238
2025 223 238
224 241
226 242
227 243
2026 229 244
230 246
233 248
234 250
2027 235 252
237 253
239 255
240 257
2028 242 259
244 260
245 262
247 264
UK Construction Market Data

Below are various organisations, in alphabetical order, who publish UK construction market data: