Release date 12 October 2018
Below is a guide to typical construction costs of various buildings per m2 of gross internal floor area (internal area measured over internal walls and partitions, stairwell openings etc). The costs are typical guide costs for a building of the size stated, constructed to a typical or mid-range specification. Building shape, number of storeys, design and material specification can all have a significant impact on costs. It is quite possible for costs to vary from -10% to +20% from the guide costs given here and even this range is not absolute but a guide only.
Costs are set at current index 178 - 4Q2018 (Year 2000 = 100), at UK national average (index 100). See the Construction Indices, the Regional Variations and the Project Value Adjustments pages for more details. The costs are for the building only, inclusive of preliminaries and contractor's overheads and profit. The costs are exclusive of furnishings, external works, allowances for risk (contingencies), fees and VAT.
If you don't know any better, we would typically add a further 20% of the costs below to cover the possible costs of external works (hard pavings, landscaping, external fences and walls, etc., foul and surface water drainage, and external services) and to the new sub-total figure a further 15% to cover risk (contingencies). This is only very much a rough guide and depends very much on the size of the site associated with the building and the level of specification and complexity of the external works. Professional fees can be anything from 5% to 10% depending on the size of the project - generally the larger the project the smaller fee percentage.
Building prices can be influenced significantly by local conditions, local market conditions, size and specification. The prices given here are intended only as an indicative guide and should be used with caution as prices outside these ranges can be encountered in meeting local conditions and specific client requirements.
An example of how a construction works budget may be put together is given at the end of this page.
|Advance factory including office accommodation (core service supplies to factory)||5000m2||£770|
|Warehouse including office accommodation||5000m2||£830|
|High bay warehouse 20m high including offices and dock-levellers (excludes racking)||10000m2||£1,250|
|Distribution centre including office accommodation||71750m2||£600|
|Office, low rise, non-air conditioned||3000m2||£1,510|
|Office, low rise, air conditioned||3000m2||£1,710|
|Office, high rise, non-air conditioned||10000m2||£1,730|
|Office, high rise, air conditioned||10000m2||£1,910|
|Shop unit (block of three small units)||500m2||£1,430|
|Shop unit with flats above||1500m2||£1,290|
|Shop unit with offices above||1000m2||£1,260|
|Health and welfare buildings|
|Home for the elderly||2000m2||£1,800|
|Home for the mentally ill||5000m2||£1,800|
|Refreshment, entertainment and recreation buildings|
|Leisure centre with swimming pool||4000m2||£2,400|
|Sports hall with swimming pool||9000m2||£2,390|
|Sports changing pavilion||200m2||£1,360|
|Educational, cultural and scientific buildings|
|College, non-air conditioned||5000m2||£1,740|
|College, air conditioned||5000m2||£1,900|
|Hall of residence||1500m2||£1,750|
|Hotel, non air conditioned||5000m2||£1,810|
The following is an example of how an early cost advice budget may be put together when all that is know about the project is building size (gross floor area), location and an indicative start of construction date.
This example is for a proposed new office block in York, 2000m2 gross floor area, with a proposed construction start date of October 2019.
|Base cost from cost per m2 table above|
|Office, low rise, air conditioned||2000m2 x £1,710||3,420,000|
|Adjustment for location (York = 97)||0.97|
|Adjustment for project value|
|Base cost factor (3000m2 x 1,710 = 5,130,000)||0.91|
|Cost factor for this project (base value 3,317,000)||0.93|
|Adjustment (0.93 - 0.91) / 0.91||2.20%||73,000|
|Adjustment for construction start date|
|Current tender price index October 2018||178|
|Forecasted tender price index October 2019||182|
|Adjustment (182 - 178) / 178||2.25%||76,000|
|Allowance for external works||say 20%||693,000|
|Allowance for risk||say 15%||624,000|
|Indicative total building works cost||£4,800,000|
Estimate base date: 12 October 2018.
Cost excludes land purchase, fees and VAT.