Cost breakdown |
| Element cost | cost/m2 gfa £ |
Substructure | 979,000 | 222.5 |
Basement construction; excavation and disposal; reinforced insitu concrete ground beams, walls and suspended slab; vapour barrier and protection board; average depth 4.60 m 1300 m2 @ 400 | Ìý | Ìý |
Piling; 600 diameter; average 35 m long; testing; disposal 48 @ 2500 | Ìý | Ìý |
Contiguous piling; 450 and 600 diameter; average 17 m long; testing; disposal 190 @ 1400 | Ìý | Ìý |
Allowance for additional foundation works Item @ 3000 | Ìý | Ìý |
Allowance for incoming services Item @ 70,000 | Ìý | Ìý |
Frame and upper floors | 718,000 | 163.18 |
Insitu reinforced concrete columns, core walls and suspended slabs; 400 thick 4000 m2 @ 170 | Ìý | Ìý |
Extra for exposed trough slab; 400 thick 1450 m2 @ 8 | Ìý | Ìý |
Structural steel frame; hollow sections at roof level; surface finishes; erection 24t @ 1100 | Ìý | Ìý |
Roof | 307,100 | 69.8 |
Zinc raised seam roofing; 0.8 mm thick; low pitch; softwood roof members, plywood deck; vapour barrier, insulation 425 m2 @ 130 | Ìý | Ìý |
Inverted mastic asphalt roof; lightweight screed, average 105 thick; isolating layer; rigid board insulation; gravel ballast, 80 mm thick; including detailing to kerbs for plant and rooflights 495m2 @ 120 | Ìý | Ìý |
Proprietary opening rooflights; double glazed; Velux; average size 1 m2 32 @ 1000 | Ìý | Ìý |
Purpose made patent glazing; aluminium glazing bars; sealed double glazed units 280 m2 @ 350 | Ìý | Ìý |
Allowance for flashings; fascias; sheathing felt etc Item @ 20,000 | Ìý | Ìý |
Rainwater goods; gutters and roof outlets Item 14,000 | Ìý | Ìý |
Cleaning gantry Item @ 18,000 | Ìý | Ìý |
Mansafe system Item @ 5,200 | Ìý | Ìý |
Pavement rooflights; smoke vents 12 m2 @ 440 | Ìý | Ìý |
Stairs | 97,000 | 22.05 |
Insitu reinforced concrete stairs and half landings; 1600 wide; 3.7 m average rise 8 @ 4800 | Ìý | Ìý |
Allowance for balustrades and handrails 190 m @ 140 | Ìý | Ìý |
Allowance for roof level access ladders 4 @ 3,000 | Ìý | Ìý |
Allowance for catwalks and platforms in plant rooms Item @ 20,000 | Ìý | Ìý |
External walls | 208,500 | 47.39 |
Cavity wall construction; facing bricks; blockwork; DPCs; insulation; lintels 345 m2 @ 100 | Ìý | Ìý |
Cavity wall construction; facing bricks; built against concrete walls; DPCs; insulation; lintels 690 m2 @ 80 | Ìý | Ìý |
Precast concrete copings 250 m @ 75 | Ìý | Ìý |
Windows and external doors | 301,200 | 68.45 |
Proprietary steel-framed, double-glazed windows; polyester powder-coated 75 m2 @ 380 | Ìý | Ìý |
Curtain walling; steel frame; sealed double-glazed units ; insulated steel-faced spandel panels; polyester powder-coated 470m2 @ 450 | Ìý | Ìý |
Clerestory windows; sealed double-glazed louvre motorised units; controls 30 m2 @ 900 | Ìý | Ìý |
External doors; double-glazed, steel-framed doors and doorsets; polyester powder-coated; stainless steel ironmongery 10 @ 1700 | Ìý | Ìý |
External doors; aluminium louvre doors and doorsets; polyester powder-coated; stainless steel ironmongery 7 @ 800 | Ìý | Ìý |
Allowance for security shutters Item @ 2000 | Ìý | Ìý |
Window boards; painted 320 m 30 | Ìý | Ìý |
Internal walls and partitions | 160,000 | 36.36 |
Partitions; facing blockwork; 150 average thickness (average rate); ancillaries 1340 m2 @ 40 | Ìý | Ìý |
Extra over for 215 thick blockwork 450 m2 @ 15 | Ìý | Ìý |
Stud partition; ancillaries; acoustic sealants 1600 m2 @ 50 | Ìý | Ìý |
Allowance for fire-rated drylining to service risers 360 m2 @ 40 | Ìý | Ìý |
Cubicle partitions; polyester powder-coated, steel-faced composite panels 12 @ 440 | Ìý | Ìý |
Internal doors | 177,900 | 40.43 |
Flush doors; solid core; ply-faced; vision panels; wrot softwood frame; 30/30 fire resistance; stainless steel door furniture; decorations 200 @ 800 | Ìý | Ìý |
Extra for; oak veneer finish 70 @ 170 | Ìý | Ìý |
Allowance for borrowed lights Item @ 6000 | Ìý | Ìý |
Wall finishes | 71,600 | 16.27 |
Plasterboard wall linings; timber battens; ancillaries 2070 m2 @ 14 | Ìý | Ìý |
Two-coat plasterwork 1060 m2 @ 10 | Ìý | Ìý |
Skim coat; to plasterboard 760 m2 @ 4 | Ìý | Ìý |
Ceramic tiles 100 m2 @ 50 | Ìý | Ìý |
Painting plaster two coats emulsion paint 8000 m2 @ 3 | Ìý | Ìý |
Floor finishes | 348,000 | 79.09 |
Hardwood flooring; clear lacquer finish 100 m2 @ 80 | Ìý | Ìý |
Raised access floor; 150 average cavity depth; dust sealer to cavity 2600 m2 @ 50 | Ìý | Ìý |
Extra for acoustic and fire cavity barriers 2600 m2 @ 5 | Ìý | Ìý |
Allowance for floor diffusers 260 @ 100 | Ìý | Ìý |
Allowance for services bridges Item @ 5000 | Ìý | Ìý |
Screeds; sand cement and proprietary concrete screeds; average 60 thick; | Ìý | Ìý |
average rate used 825 m2 @ 20 | Ìý | Ìý |
Extra for insulation board 140 m2 @ 18 | Ìý | Ìý |
Carpet tile; to general areas 2900 m2 @ 30 | Ìý | Ìý |
Rubber tile safety flooring; skirting 210 m2 @ 56 | Ìý | Ìý |
Rubber sheet flooring; to general areas 680 m2 @ 37 | Ìý | Ìý |
Floor paint; to plant rooms 390 m2 @ 4 | Ìý | Ìý |
Softwood skirting; painted 1950 m @ 10 | Ìý | Ìý |
Ceiling finishes | 63,900 | 14.52 |
Allowance for mats and matwells Item @ 2000 | Ìý | Ìý |
Suspended ceilings; plasterboard on MF; access panels; paint finish 750 m2 @ 30 | Ìý | Ìý |
Allowance for radiant panel ceiling Item @ 22,000 | Ìý | Ìý |
Plasterboard linings; access panels; paint finish 560 m2 @ 20 | Ìý | Ìý |
Painting; to exposed concrete ribbed soffits; one coat clear sealer 4100 m2 @ 2 | Ìý | Ìý |
Furniture | 307,000 | 69.77 |
Purpose-made fixed furniture; tables and seating to non-teaching areas Item @ 150,000 | Ìý | Ìý |
Reception desk Item @ 20,000 | Ìý | Ìý |
Lecture theatre and seminar room equipment; whiteboards, hanging rails, | Ìý | Ìý |
flipcharts and pinboards Item @ 60,000 | Ìý | Ìý |
Fixed seating to lecture theatre 200 @ 150 | Ìý | Ìý |
Window blinds 300 m2 @ 50 | Ìý | Ìý |
Motorised blind to skylight Item @ 5000 | Ìý | Ìý |
Blackout blinds to teaching spaces Item @ 25,000 | Ìý | Ìý |
Statutory and orientation signage Item @ 2000 | Ìý | Ìý |
Sanitary fittings | 54,400 | 12.36 |
WCs, urinals, washhand basins, fittings; cleaners’ sinks; complete (average rate) 80 @ 260 | Ìý | Ìý |
Extra for fittings for disabled WCs 5 @ 400 | Ìý | Ìý |
IPS system panels; including access panels; ancillaries 80 m2 @ 200 | Ìý | Ìý |
Modular washroom units; stainless steel 8 @ 1600 | Ìý | Ìý |
Hand dryers 14 @ 200 | Ìý | Ìý |
Disposal installations | 103,600 | 23.55 |
Rainwater downpipes, outlets and connections to drains 4400 m2 @ 10 | Ìý | Ìý |
Extra for basement drainage 1300 m2 @ 12 | Ìý | Ìý |
Waste, soil and vent installation; PVCu pipework and fittings 4400 m2 @ 10 | Ìý | Ìý |
Water installations | 83,400 | 18.95 |
Mains water; cold water storage and distribution, water treatment 4400 m2 @ 10 | Ìý | Ìý |
Hot water installation; calorifiers; distribution; insulation 4400 m2 @ 6 | Ìý | Ìý |
Local water heaters; distribution; insulation Item @ 13,000 | Ìý | Ìý |
Space heating and air treatment | 583,600 | 132.64 |
Boiler; 575 kW, pumpset and pipework in plantroom; flue Item @ 62,000 | Ìý | Ìý |
Chilled water plant; 260kW; pipework and valves in plantrooms and risers Item @ 49,000 | Ìý | Ìý |
Air handling units; supply and extract; total mass flow rate 17 kg/s Item @ 82,000 | Ìý | Ìý |
LTHW distribution pipework; ancillaries; insulation 4400 m2 @ 20 | Ìý | Ìý |
Chilled water distribution pipework; ancillaries; insulation 1930 m2 @ 10 | Ìý | Ìý |
Supply and extract ductwork; grilles and diffusers; ancillaries; including allowances for two-hour fire-rated smoke extract ductwork 1930 m2 @ 90 | Ìý | Ìý |
LTHW heating; trench heating Item @ 26,000 | Ìý | Ìý |
LTHW heating; panel radiators Item @ 34,000 | Ìý | Ìý |
Allowance for radiant panel heating and cooling installation to double height spaces 485 m2 @ 40 | Ìý | Ìý |
Allowance for supplementary cooling to ICT rooms; packaged DX units Item @ 17,000 | Ìý | Ìý |
Toilet extract installation 4400 m2 @ 3 | Ìý | Ìý |
Electrical installations | 444,500 | 101.02 |
Mains and sub – mains installation 4400 m2 @ 20 | Ìý | Ìý |
Small power installation 4400 m2 @ 20 | Ìý | Ìý |
Extra over for small power to offices and IT areas; floor outlet boxes 1800 m2 @ 5 | Ìý | Ìý |
Lighting and luminaires; generally 4400 m2 @ 35 | Ìý | Ìý |
Extra for enhanced lighting; public spaces and cellular offices 1700 m2 @ 45 | Ìý | Ìý |
Emergency lighting; generally 4400 m2 @ 5 | Ìý | Ìý |
Power supply installation to mechanical equipment Item @ 7000 | Ìý | Ìý |
Gas installation | 13,000 | 2.95 |
Gas supply to central boiler and kitchen area Item @ 13,000 | Ìý | Ìý |
Lift installation | 86,000 | 19.55 |
Four-person electric traction lift serving five floors 2 @ 43000 | Ìý | Ìý |
Protective installations | 22,200 | 5.05 |
Lightning protection 4400 m2 @ 2 | Ìý | Ìý |
Earthing and bonding 4400 m2 @ 1 | Ìý | Ìý |
Dry riser 1 @ 9000 | Ìý | Ìý |
Communications installation | 152,900 | 34.75 |
Fire alarm installation; smoke detectors; call points 4400 m2 @ 15 | Ìý | Ìý |
Disabled alarm Item @ 3000 | Ìý | Ìý |
Structured cabling installation; 120% capacity 1250 m2 @ 25 | Ìý | Ìý |
Security and access control system; intruder alarm 4400 m2 @ 4 | Ìý | Ìý |
Allowance for CCTV system Item @ 20000 | Ìý | Ìý |
Telephone and data wireways; for ICT, CCTV and security systems Item @ 15000 | Ìý | Ìý |
Special installations | 110,000 | 25 |
ºÚ¶´ÉçÇø management system 4400 m2 @ 25 | Ìý | Ìý |
Builder's work in connection | 82,700 | 18.8 |
Forming holes, chases etc Allow 5% Item @ 82700 | Ìý | Ìý |
Preliminaries and contingencies | 995,800 | 226.32 |
Testing and commissioning of services; record drawings Item @ 10,000 | Ìý | Ìý |
Management costs, site establishment and site supervision Allow 13% Item @ 711,800 | Ìý | Ìý |
Contingency sum Allow 5% Item @ 274,000 | Ìý | Ìý |
Total construction cost – building only | 6,471,300 | 1470.75 |