Cost study: Coin Street housing | Features

Cost analysis of Coin Street site B
	Housing and retail £/m2 7056m2 gifa	Car park £/m2 7001m2 gifa	Total £/m2	Outline specification
Enabling works		40.05	19.95
Substructure		128.56	64.03	Suspended reinforced concrete slab foundations
Superstructure
Frame	5.25	4.08	4.67	Insitu reinforced concrete frame; Everdure Caltite waterproof concrete deck over car parking
Upper floors	117.29	1.07	59.41	Insitu reinforced concrete
Roof	66.60	83.35	74.94	Exposed Douglas fir joists with plydecking and standing-seam Rhinezinc; insitu RC paved terrace
Stairs	37.47	0.96	19.29	Prefab timber to dwellings; painted steel frames and screed infill
External walls	102.16	10.32	56.42	Chelwood Sunbury red handmade brick, cavity and dense blockwork; Vitex Cofassus hardwood cladding
Windows and external doors	122.83	3.00	63.15	Wicona polyester powder-coated aluminium system
Internal walls and partitions	55.11	3.67	29.49	Dense concrete blockwork plastered
Internal doors	32.49	3.16	17.88	Solid-core doors painted, plus fire-rated glass panels to kitchen
Finishes and fixtures
Wall finishes	41.10	0.52	20.89	Paint finish on plaster; Fendor Hansen lift screens
Floor finishes	42.09	0.55	21.40	Danskin timber floating floor; Freudenberg vinyl
Ceiling finishes	26.18	0.06	13.17	Painted plasterboard
Fixtures and fittings	21.89	0.55	11.26
Services installation
Sanitary installation	8.71	0.04	4.39
Disposal installation	19.72	1.54	10.67
Water installation	39.82	7.67	23.81	Condensing boilers, solar panels
Heat source	18.07		9.07
Space heating/air treatment	6.27		3.15
Ventilating system	44.85	38.16	41.52	Heat-recovery ventilation system
Electrical installation	37.47	20.34	28.94	By Briggs Forrester; Erco lighting for common parts
Gas installation	4.43		2.22
Lift installation	7.13	2.52	4.83	European Lifts side-action traction passenger lift
Protective installation	2.56	27.11	14.79	Sprinklers to car park
Communications installation	7.53		3.78
Special installation	7.51		3.77
Builders’ work in connection	15.36	3.17	9.29
External works and overheads
External works	104.76	17.41	61.26
Preliminaries	134.88	48.52	91.87
Contingencies	9.08	3.27	6.19
Total	£1,138.61	£449.65	£795.50
Costs are based on original tender of February 1999, covering main and enabling contracts but excluding professional and statutory fees.