Building Occupancy Classes

Article Contents

Building Occupancy Classes

Class Occupancy
1 Domestic and Residential

Single family dwellings

Office and work areas

Light pedestrian traffic routes

2 Domestic and Residential

Multi-occupancy, balconies and edges of roofs

Office and work areas – areas not susceptible to over-crowding

Areas without obstacles for moving people and not susceptible to over-crowding, stairs, landings, corridors and balconies

3 Areas where people might congregate

Areas having fixed seating within 530mm of the barrier

Areas with fixed seating – restaurants and bars

Areas susceptible to overcrowding – footways or footpaths less than 3mtrs wide adjacent to sunken areas

Retail areas – All retail areas including banks, building societies and betting shops

4 Areas Susceptible to over-crowding

Theatres, cinemas, shopping malls, assembly areas. Footways or pavements greater than 3mtrs wide adjacent to sunken areas

Design Load Categories

Building Occupancy Class Line Load in kN/m run applied 1100mm above finished floor level UDL in kN/m²applied to the whole infill panel below the line load height Concentrated load in kN applied to any part of the infill panel below the line load height
1 0.36 0.50 0.25
2 0.74 1.00 0.50
3 1.50 1.50 1.50
4 3.00 1.50 1.50

We therefore advise that areas most associated with private individual purchases fall into Building occupancy class 1 & 2.

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