The general guidelines given below are to be followed by all BOI Enterprises in the planning, designing and construction of factory buildings. The Architect/Engineer designing the factory complex shall also take into consideration inter-alia, the location, site conditions, services, required, number of workers, processes involved, raw materials used, factory effluents and solid waste to be disposed of etc., before finalising the building plans for submission to the BOI for approval.


Selection of Site

In selecting a site for the factory buildings of the proposed project, among other things, the following aspects should be taken into consideration:

a. The covered area of factory buildings and other ancillary structures such as warehouses and workshops.

b. Internal roads, paking areas, footpaths, loading and unloading space, and garden area.

c. Fire gap and fire escape routes.

d. Space and locations within the site for installation such as gas cylinders, transformers, water tanks, underground water sumps, treatment plants, storm water drains etc.

If the factory is to be located outside an EPZ or an industrial park, among other matters, transportation, availability of eating establishments, adequacy of infrastructure facilities such as power, water, telecommunication and means of discharging effluents if any, disposal of solid waste and storm water etc. also should be taken note of.

In addition, prevailing by-laws/regulations in force in the area of the Local Authority, particularly those pertaining to road reservations, streetlines, construction of buildings and waste disposal which would affect the siting of buildings and operation of the factory should be given due consideration.


Factory Buildings and Services

All buildings and services shall be designed and constructed in accordance with accepted Codes of Practice and in conformity with the current Factories Ordinance.

Architectural Appearance and Quality

The building and other structures shall be aesthetically pleasing and of a high standard acceptable to the BOI. Major building components, type of finishes, (such as external finishes of walls), electrical fans, extractors, blowers, doors, windows, louvres, lighting points, air conditioncrs (if any) shall be clearly indicated in the building plans.

Final Ground and Floor Levels

Final ground and floor levels of the factory must be fixed in relation to the surrounding lay of the land, adjoining road levels, invert levels and location of the nearest manholes in order to ensure proper surface water drainage and sewage disposal.

Floor Space

No factory shall be over crowded so as to cause risk or Injury to the workers. The space requirement should be decided upon taking into consideration the numbers and size of machinery that would be installed, tables/work benches, bins and other equipment that need to be accommodated in the production areas, pathways, emergency exits and temporary storage requirements. The total covered area should take into account the production area required, stores space, office, canteen, toilets, service areas, first aid room, fire escape routes, maintenance space, tool room/(s), workshops, boiler room, treatment plants, etc.

The amount of work space allowed for each worker should be not less than 400 cu. ft. No space over a height of 14 ft. from the floor shall be taken into account when calculating this cubic space.

Storeyed Buildings

In storeyed factory buildings, in addition to the main stairway leading to the working area there shall be provided an additional stairway which would serve as an escape route in case of fire. All stairways should be provided with railings and the top railing should not be less than 90 cm high. The completed structure consisting of anchor posts and railings should be of solid construction and should be capable of withstanding a point load of at least 90 kgs applied in any direction at any point on the top rail.

Guarding of wall openings, open-side floors, platforms and catwalks.

All wall openings, open-side floors, platforms and catwalks should be suitably guarded by means of railing or fencing. Where there is a hazard of material falling from open-side floors, platforms etc., suitable protective measures should be adopted by the provision of toe-boards or screens of solid construction.

Boundary Walls

The boundary walls along the perimeter of the site and the gate shall be 6 ft. high. Prior approval should be obtained for the location of the gate.

The premises and road frontage should be well landscaped. As many of the existing trees as possible should be preserved and only those which need to be removed for buildings should be felled.

Parking Areas and Access

Adequate parking areas and suitable access road should be provided within the site, so as to avoid parking of vehicles on the highway.

Security Lights

The factory compound shall be provided with adequate security lights.

Exit Doors

Minimum of two exit doors in every floor or every big room should be provided.

Electrical Installations

All electrical installations shall be carried out to the satisfaction of the Ceylon Electricity Board.


During the planning stages due consideration should be given to the expansion programmes of the project so that at later stages when the layouts are modified or the work force is increased changes required and the provision of amenities to the increased work force do not become problematic.

Source: Board of Investment (BOI) , Sri Lanka
Copyright © 2002 Homepage (Pvt) Ltd. All rights reserved.