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Keep up to dateTypical space allocations | |
Function | % |
Primary laboratory space | 20-25 |
Other primary space (write-up/offices) | 15-20 |
Secondary space | 18-25 |
Tertiary space | 10-20 |
Total net useable areas | 70-80 |
Gross internal area (excluding plant) | 100 |
Source: Wellcome Trust. The total space allowance per scientist varies enormously in accordance with laboratory requirements and the extent of secondary space. Net space allowances in the private sector can range from 21 m² to more than 32 m² per scientist. |
Research laboratory cost breakdown | |||
element cost | cost/m² gfa £ | % of total cost | |
Substructure | 842 000 | 76.55 | 4.71 |
Ground slab; 200 mm thick reinforced insitu concrete bed, hardcore; damp-proof membrane; reinforced concrete pad and perimeter foundations | 4500 m2 | @ £110 | |
Extra over for basement construction | 400 m2 | @ £280 | |
Allowance for below-ground drainage and incoming services | 45m2 | @ £50 | |
Extra over for sump chamber and pump installation | Item @ £10 000 | ||
Frame | 877 900 | 79.81 | 4.91 |
Insitu concrete frame; comprising 250 mm thick shear walls and rectangular and circular columns | 5900 m2 | @ £30 | |
Structural steel framing to roof level plant rooms including roof purlins; (average rate for universal and hollow sections) | 235 tonnes | @ £1300 | |
Extra over for structural steel framing to external service ducts | 85 tonnes | @ £840 | |
Timber roof structure, glu-lam beams, ply box beams; structural steel connections | 1800 m2 | @ £180 | |
Upper floors | 626 000 | 56.91 | 3.50 |
Insitu concrete troughed floor slabs; 650 mm thick overall | 3600 m2 | @ £110 | |
Insitu concrete flat slabs; average 300 mm thick | 2300 m2 | @ £100 | |
Roof | 597 800 | 54.35 | 3.35 |
Roof cladding; raised-seam terne-coated stainless steel sheet cladding, inner tray, insulation, vapour barrier, plywood base | 5570 m2 | @ £70 | |
Extra over for ridges, edge trims, cappings and gutters | 5570 m2 | @ £10 | |
Rooflights; double-glazed units; polyester powder-coated aluminium frame; including allowance for opening lights | 240 m2 | @ £500 | |
Allowance for roof safety system | 460 m | @ £70 | |
Stairs | 251 000 | 22.82 | 1.40 |
Insitu concrete stairs and half landings; screed to treads and risers | 58 m | @ £500 | |
Allowance for balustrades and handrails to staircases; stainless steel with glazed panels to feature stairs, powder-coated mild steel to others; timber handrails | Item @ £100 000 | ||
Allowance for balustrades and handrails to access bridges; stainless steel with glazed panels to feature bridge, powder-coated mild steel to others; timber handrails | Item @ £30 000 | ||
Allowance for timber handrails to reception area; including glazed panels | Item @ £17 000 | ||
External escape staircases; spiral; galvanised mild steel; 2.1m diameter, 9 m high; including access gantries | 6 | @ £12 500 | |
External walls, windows and doors | 1 594 000 | 144.91 | 8.92 |
Facing brickwork cavity walls; handmade facings, insulation and blockwork; windposts | 3075 m2 | @ £130 | |
Wall cladding; raised-seam terne-coated stainless steel sheet cladding, underlay; insulation; plywood base | 2900 m2 | @ £110 | |
Curtain walling; aluminium-framed, sealed double-glazed units; low E glass to inner pane; including structural steel secondary support | 820 m2 | @ £300 | |
Extra for glazed double doorsets; ironmongery and accessories | 12 | @ £3000 | |
Extra for revolving entrance doors; ironmongery and accessories | 1 | @ £18 000 | |
Structural glazing; double-glazed units; including structural steel secondary support | 115 m2 | @ £600 | |
Windows; sealed double-glazed units in polyester powder-coated steel frames | 830 m2 | @ £220 | |
Doors and frames; part-glazed; polyester powder-coated steel; ironmongery | 36 | @ £2500 | |
Doors and frames; part-glazed; hardwood; ironmongery | 38 | @ £1000 | |
Louvre panels to plant areas; stainless steel | 520 m2 | @ £330 | |
Sunshading; perforated louvre cassettes | 185 m | @ £130 | |
Internal walls and partitions | 619 600 | 56.33 | 3.47 |
Blockwork partitions; 100 mm and 140 mm thick; head restraint (average rate) | 3700 m2 | @ £36 | |
Part-glazed partitions; non-fire rated; powder-coated steel frame; single-glazed lights; plasterboard lining both sides; doors; ironmongery (average rate) | 1470 m2 | @ £210 | |
Part-glazed partitions; fire rated; powder-coated steel frame; single-glazed lights; plasterboard lining both sides; doors; ironmongery (average rate) | 290 m2 | @ £330 | |
Metal stud partitions; 2 layers wallboard each side; insulation | 150 m2 | @ £40 | |
Toilet cubicle partitions and backpanels | 26 | @ £1200 | |
Shower cubicle partitions and backpanels | 2 | @ £2400 | |
Internal doors | 222 450 | 20.22 | 1.25 |
Flush doors; fire-rated; solid-core veneer-faced; hardwood frames; ironmongery; complete | 107 | @ £700 | |
Flush doors; fire-rated; solid-core laminate-faced; hardwood frames; ironmongery; complete | 140 | @ £750 | |
Flush doors; non-fire-rated; solid-core veneer-faced; hardwood frames; ironmongery; complete | 74 | @ £575 | |
Wall finishes | 181 070 | 16.46 | 1.01 |
Sand cement render; 13 mm thick | 650 m2 | @ £10 | |
Plaster; two coats, 13 mm thick | 6875 m2 | @ £8 | |
Extra for allowance for radiused internal and external angles to plasterwork in special lab areas (average rate) | 580 m | @ £35 | |
Two coats emulsion paint; to plaster or plasterboard | 13 500 m2 | @ £3 | |
Two coats woodstain; to timber | 640 m2 | @ £8 | |
Ceramic tiles; to sand cement backing or plasterboard | 485 m2 | @ £50 | |
Hygienic wall coverings; three coats acrylic polymer | 940 m2 | @ £10 | |
Hygienic finish to kitchen areas; laminate panels | Item @ £20 000 | ||
Floor finishes | 386 310 | 35.12 | 2.16 |
Sand cement screed; 75 mm thick; floated finish; including scabbling to floor slab | 6800 m2 | @ £11 | |
Raised access floor; 150 mm deep floor void; including allowances for cavity and acoustic barriers, services bridging and so on | 1440 m2 | @ £37 | |
Extra for 450 mm deep floor void | 680 m2 | @ £6 | |
Extra for bonded vinyl floor finish | 45 m2 | @ £20 | |
Heavy duty carpet tiles; to raised floor tiles or screed | 3500 m2 | @ £30 | |
Heavy duty vinyl; including smoothing compound and coved skirting | 4400 m2 | @ £20 | |
Softwood skirting; woodstain finish | 1000 m | @ £10 | |
Natural stone flooring; including allowances for screeds and skirtings; to reception area | 350 m2 | @ £90 | |
Epoxy resin floor finish to concrete floor slabs in plant rooms | 2750 m2 | @ £5 | |
Allowance for mats and matwells | Item @ £5 000 | ||
Ceiling finishes | 315 210 | 28.66 | 1.76 |
Suspended ceilings; metal tray; concealed grid | 2600 m2 | @ £35 | |
Extra for perforated tiles | 2200 m2 | @ £3 | |
Extra for acoustic treatment, absorbent pads | 1350 m2 | @ £2 | |
Suspended ceilings; mineral fibre acoustic plank; concealed grid | 960 m2 | @ £43 | |
Suspended ceilings; hygienic ceiling finish to kitchen; extruded PVCu | 320 m2 | @ £34 | |
Suspended ceilings; plasterboard on MF system; including access panels | 120 m2 | @ £40 | |
Extra for plasterboard in margin work to other suspended ceiling systems | 220 m2 | @ £50 | |
Plywood roof panels; vapour barrier and insulation | 1100 m2 | @ £60 | |
Intumescent clear finish; to plywood ceiling panels and exposed timber roof members | 3150 m2 | @ £13 | |
Furniture and fittings | 116 000 | 10.55 | 0.65 |
Reception desk | Item @ £20 000 | ||
Crash protection rails | 630 m | @ £45 | |
Vanity units; melamine-coated | 15 m | @ £770 | |
Allowance for cloakroom fittings, lockers and so on | Item @ £10 000 | ||
Allowance for teapoints in office areas. | Item @ £10 000 | ||
Allowance for shelving and so on | Item @ £10 000 | ||
Allowance for window boards | Item @ £7000 | ||
Window blinds | 260 m2 | @ £35 | |
Allowance for statutory signage | Item @ £5000 | ||
Allowance for directional signage | Item @ £5000 | ||
Sanitary fittings | 40 000 | 3.64 | 0.22 |
WCs, urinals, washhand basins; generally | 75 | @ £400 | |
Allowance for fittings for disabled WCs | Item @ £2000 | ||
Allowance for hand dryers | Item @ £8000 | ||
Services equipment | 1 382 600 | 125.69 | 7.74 |
Laboratory furniture installation; worktops, shelves and underbench units | 3850 m2 | @ £80 | |
Laboratory furniture installation; plumbing services and laboratory sinkwastes | 3850 m2 | @ £30 | |
Laboratory furniture installation; service outlets | 3850 m2 | @ £10 | |
Laboratory furniture installation; electrical installation | 3850 m2 | @ £30 | |
Laboratory fume cupboard installation; based on variable air-volume system | 93 | @ £5000 | |
Extra for non-standard fume cupboards (12 walk-in fume cupboards) | Item @ £22 000 | ||
Services installations and connections to fume cupboards; ductwork connections to extract system, plumbing and waste outlets, electrical services, fire protection | 93 | @ £1700 | |
Laboratory cold room installation | Item @ £20 000 | ||
Kitchen installation complete; catering, storage and dishwash equipment | Item @ £70 000 | ||
Servery equipment | Item @ £70 000 | ||
Disposal installations | 187 800 | 17.07 | 1.05 |
Rainwater goods; steel downpipes | 425 m | @ £60 | |
Soil, waste and vent to landlord’s installation; PVCu pipework and fittings | 11 000 m2 | @ £2 | |
Soil, waste and vent to tenant’s installation; including kitchen installation and special wastes to laboratory areas | 6100 m2 | @ £23 | |
Water installations | 296 500 | 26.95 | 1.66 |
Hot and cold water service; calorifiers; hot and cold water storage; distribution | 11 000 m2 | @ £2 | |
Hot and cold water service to laboratory and kitchen/servery areas; calorifiers; hot and cold water storage; distribution | 6100 m2 | @ £45 | |
Space heating and air treatment | 3 083 300 | 280.30 | 17.26 |
Gas installation | Item @ £13 000 | ||
Low-temperature hot-water heating; boiler plant; stainless steel flues; pumps and valves; distribution within plant rooms; insulation | 11 000 m2 | @ £30 | |
Low-temperature hot-water heating; general distribution; pipework; insulation; radiant panels | 11 000 m2 | @ £30 | |
Chilled water installation; sized for laboratory cooling loads; chillers and heat rejection plant; pressurisation unit; pumps and valves; distribution within plant rooms; insulation and trace heating | Item @ £330 000 | ||
Supplementary chilled water installation; chillers and heat rejection plant; pressurisation unit; pumps and valves; distribution within plant rooms; insulation and trace heating . | 7900 m2 | @ £17 | |
Supply and extract ventilation; air-handling units; heating, cooling and reheat coils; ductwork in risers and plant rooms | Item @ £350 000 | ||
Air-conditioning; four-pipe fan-coil and variable-air-volume installations; chilled water distribution; condensate drainage; fan-coil units; ductwork; terminal units; insulation; grilles and diffusers | 8850 m2 | @ £140 | |
Extra for fume cupboard/safety cupboard extract system | 3850 m2 | @ £80 | |
Toilet extract installation | Item @ £26 000 | ||
Kitchen extract installation | Item @ £23 000 | ||
Electrical installations | 1 364 500 | 124.05 | 7.64 |
Allowance for HV switchgear and distribution | Item @ £30 000 | ||
Mains and sub-mains installation | Item @ £200 000 | ||
Small power distribution to laboratories | 5750 m2 | @ £25 | |
Small power distribution; busbar and floorbox to office areas, wall-mounted elsewhere | 5250 m2 | @ £15 | |
Lighting distribution and accessories | 11 000 m2 | @ £25 | |
Luminaires and lamps | 11 000 m2 | @ £25 | |
Emergency lighting installation | 11 000 m2 | @ £8 | |
Allowance for external lighting | Item @ £35 000 | ||
Power to mechanical services | Item @ £25 000 | ||
Containment; trunking, tray and ladder rack to laboratory areas | 5750 m2 | @ £17 | |
Containment; trunking, tray and ladder rack to office etc areas | 5250 m2 | @ £5 | |
Standby generator installation | Item @ £65 000 | ||
Landlord’s UPS installation | Item @ £25 000 | ||
Lift installations | 210 000 | 19.09 | 1.18 |
Glazed feature lifts; hydraulic; eight-person, serving two stops each | 2 | @ £45 000 | |
Extra for structural steel frame to feature lifts | Item @ £40 000 | ||
Passenger/goods lift; hydraulic; 21-person, 1600 kg; serving three stops | Item @ £50 000 | ||
Passenger/goods lift; hydraulic; 13-person, 1000 kg; serving two stops | Item @ £30 000 | ||
Protective installations | 79 000 | 7.18 | 0.44 |
Earthing and bonding | 11 000 m2 | @ £4 | |
Lightning protection | 11 000 m2 | @ £2 | |
Gaseous fire suppression system; to archive area | Item @ £13 000 | ||
Communications installations | 308 000 | 28.00 | 1.72 |
Fully addressable fire and smoke detection and alarm system | 11 000 m2 | @ £18 | |
Intruder detection | 11 000 m2 | @ £5 | |
CCTV installation | Item @ £35 000 | ||
Access control system | Item @ £20 000 | ||
Special installations | 660 000 | 60.00 | 3.69 |
Building management system | 11 000 m2 | @ £45 | |
Medical gases installation | Item @ £90 000 | ||
Vacuum-pump system | Item @ £75 000 | ||
Compressed air installation | Item @ £60 000 | ||
Builder’s work in connection | 635 000 | 57.73 | 3.55 |
Additional structural steelwork to plant room | Item @ £60 000 | ||
Forming holes, chases etc; allow 7.5% | Item @ £575 000 | ||
Preliminaries and contingencies | 2 990 000 | 271.82 | 16.74 |
Construction manager’s fee, establishment and supervision; allow 15% | Item @ £2 240 000 | ||
Contingency sum; allow 5% | Item @ £750 000 | ||
Overall construction cost | 17 866 040 | 1 624.19 | 100.00 |
Regional variations | |||
The cost breakdown is based on a scheme in the Cambridge area and should be adjusted by the following location factors for projects in other regions. | |||
Inner London | 1.11 | Yorkshire and Humberside | 0.94 |
Outer London | 1.06 | North-west | 0.94 |
South-east | 1.03 | North | 0.97 |
South-west | 0.97 | Scotland | 0.97 |
East Midlands | 0.96 | Wales | 0.94 |
West Midlands | 0.96 | Northern Ireland | 0.85 |