Untitled Document

Building Design Cost Management

Case Study - BCIS Information - Available Information - Cost

Electronics Factory D

A - 1 - 2,865

Building Function :	275.5 - Factories for electronics, computers, or the like
Type of Work :	New build
Gross Floor Area :	2,865 m²

Job Title :

Electronics Factory, Northern Ireland

Location :	Northern Ireland
District :
Grid Reference :

Dates :	Receipt : 13-Apr-1995
	Base : 13-Apr-1995
	Acceptance : 10-May-1995
	Possession : 11-May-1995

Project Details :

Single storey factory building, 95x28x4.4m, with attached boiler and compressor house, 9.4x18m, ready for occupation. External works include macadam and insitu concrete paving, chain link fencing, landscaping, services, drainage, security hut and chemical store.

Site Conditions :

Level green field site with moderate ground conditions. Excavation above water table. Unrestricted working space and access.

Market Conditions :

Project tender price index: 75 on 1985 BCIS Index Base

Client :
Tender Documentation :	Bill of Quantities
Selection of Contractor :	Selected competition
No of Tenders :	Issued : 6 Received : 6
Contract :	GC/Wks/1 edition 2
Contract Period ( mths ) :	Stipulated : 4 Offered : - Agreed : 4
Cost Fluctuations :	Fixed

Tender List :	£ 1,810,990	-
	£ 1,858,401	2.6%
	£ 1,874,212	3.5%
	£ 1,899,439	4.9%
	£ 1,914,045	5.7%
	£ 1,953,259	7.9%

Contract Breakdown :
Measured Work	£ 1,078,990
Provisional Sums	£ 51,000
Prime Cost Sums	£ 509,200
Preliminaries	£ 131,800
Contingencies	£ 40,000
Contract Sum	£ 1,810,990

Accomodation and Design Features : Factory with offices, canteen, stores and attached utilities block. Concrete strip and pad foundations, ground slab. Steel portal frame. Rendered block dwarf walls, steel cladding to walls and roof. Double glazed aluminium windows; electric steel roller shutter doors. Block partitions, WC cubicles. Flush doors. Plaster and paint only to walls; special screed, vinyl, carpet and tiles to floors; suspended ceilings. Fittings. Kitchen fitments. Sanitaryware. Oil HW heating. Extract fans, electric light and power. Sprinklers. Burglar and fire alarms, CCTV. Ext works.

Basement	0 m²	Area of External Walls	1,597 m²
Ground Floor	2,865 m²	Wall to Floor Ratio	0.56% %
Upper Floors	0 m²	Average Storey Heights
		Basement	- m
Gross Floor Area	2,865 m²	Ground	- m
		Upper	- m
Usable Area	2,608 m²
Circulation Area	88 m²	Internal Cube	- m³
Ancillary Area	169 m²
Internal Divisions	0 m²	Spaces Not Enclosed	- m²

Gross Floor Area	2,865 m²	Number of Units	1

Analysis

Element	Total Cost	Cost per m²	Element Unit Quantity	Element Unit Rate	Percent- age
1 Substructure	£ 109,079	£ 38.07	2,865 m2	£ 38.07	6 %
2A Frame	£ 122,000	£ 42.58	2,865 m2	£ 42.58	6 %
2B Upper floors
2C Roof	£ 92,920	£ 32.43	3,041 m2	£ 30.56	5 %
2D Stairs
2E External walls	£ 45,967	£ 16.04	1,334 m2	£ 34.46	2 %
2F Windows and external doors	£ 35,883	£ 12.52	263 m2	£ 136.44	1 %
2G Internal walls and partitions	£ 37,291	£ 13.02	1,798 m2	£ 20.74	2 %
2H Internal doors	£ 17,930	£ 6.26	51 No	£ 351.57
2 Superstructure	£ 351,991	£ 122.86			19 %
3A Wall finishes	£ 25,360	£ 8.85			1 %
3B Floor finishes	£ 53,020	£ 18.51			2 %
3C Ceiling finishes	£ 21,353	£ 7.45			1 %
3 Internal finishes	£ 99,733	£ 34.81			5 %
4 Fittings	£ 16,215	£ 5.66
5A Sanitary appliances	Included in element 5F
5B Services equipment
5C Disposal installations	Included in element 5F
5D Water installations	Included in element 5F
5E Heat source	Included in element 5F
5F Space heating and air treatment (includes others)	£ 174,000	£ 60.73			9 %
5G Ventilating systems	Included in element 5F
5H Electrical installations	£ 150,000	£ 52.36			8 %
5I Gas installations
5J Lift and conveyor installations
5K Protective installations	£ 52,200	£ 18.22			2 %
5L Communications installations
5M Special installations
5N Builder's work in connection	£ 70,372	£ 24.56			3 %
5O Builder's profit and attendance
5 Services	£ 446,572	£ 155.87			24 %
Building sub-total	£ 1,023,590	£ 357.27			56 %
6A Site works	£ 442,112	£ 154.31			24 %
6B Drainage	£ 118,630	£ 41.41			6 %
6C External services	Included in element 5F
6D Minor building works	£ 54,858	£ 19.15			3 %
6 External works	£ 615,600	£ 214.87			33 %
7 Preliminaries	£ 131,800	£ 46.00			7 %
Total (less Contingencies)	£ 1,770,990	£ 618.15			97 %
8 Contingencies	£ 40,000	£ 13.96			2 %
Contract sum	£ 1,810,990	£ 632.11			100 %

Specification

Element		Specification
1	Substructure	Excavation in unstable ground. 1995m2 Type 3 crushed rock. Concrete C35/20 in foundation trenches, C40/20 reinforced concrete slab, power float finish, 200mm thick. Reinforced concrete stanchion bases. 215mm precast concrete block walling.
2A	Frame	PC sum £122000 for single span steel portal frame.
2C	Roof	BSC Colorcoat steel cladding, insulated core and powder coated inner skin. Translucent rooflights. Kingspan Highline steel gutters. PVC rainwater pipes.
2E	External walls	Precast concrete block dwarf walls, rendered, with BSC Colorcoat insulated composite metal cladding.
2F	Windows and external doors	Kawneer 102 series double glazed aluminium windows and external screens; Leaderflush doors. 2No electrically operated steel roller shutters.
2G	Internal walls and partitions	10.5N/mm2 precast fairfaced concrete blocks, mainly 215mm. Toilet cubicles.
2H	Internal doors	51No 44mm Leaderflush solid core doors in softwood frames.
3A	Wall finishes	2 coats Carlite plaster and vinyl emulsion to blockwork.
3B	Floor finishes	Sealed concrete floor with 2mm Larcote SL or Laybon Sealdeck; 421m2 vinyl flooring; 86m2 ceramic tiles; 261m2 Interface Genesis carpet.
3C	Ceiling finishes	1122m2 Armstrong Minaboard Dune suspended ceilings.
4	Fittings	Minor shelving, vanity kitchen units, bench seats, reception desk.
5A	Sanitary appliances	14No WCs, 15No wash basins, included in 5F.
5C	Disposal installations	Included in 5F.
5D	Water installations	Included in 5F.
5E	Heat source	Included in 5F.
5F	Space heating and air treatment	PC sum £174000 for 2 boilers, calorifiers, compressors, dryer, air receiver, 2 toilet extract fans, 2 general extract fans, 7 smoke ventilators.
5G	Ventilating systems	Included in 5F.
5H	Electrical installations	PC sum £150000 for electric light, power, switchgear and CCTV.
5K	Protective installations	PC sum £52200 for sprinklers.
5L	Communications installations	Intruder alarm and fire detection.
5N	Builder's work in connection	Concrete bases, tank platforms, holes, pipe casings.
6A	Site works	Grassing; 4462m2 reinforced concrete roads; 4057m2 asphalt roads; 1801m2 macadam paving; 2022m2 macadam footpaths; chain link fencing, rendered block retaining wall with galvanised balustrading.
6B	Drainage	2915m2 PVC drain pipes, 110mm diameter; 92No gullies; 44No manholes. Pumping chamber.
6C	External services	Oil supply, sprinkler mains, water, electricity.
6D	Minor building works	Security hut, utility building and chemical store with rendered block walls and composite roof panels.
7	Preliminaries	8.04% of remainder of Contract Sum (excluding Contingencies).
8	Contingencies	2.44% of remainder of Contract Sum (excluding Preliminaries).

Credits

Submitted by:	Construction Economist
Client:
Supervising Officer:
Quantity Surveyor:	Building Design Cost Management Associates
Engineers Structural:
Engineers: Home