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BC Update: No.82 - New online calculator for toilet facilities in buildings

23 April 2008: The Department has published a new online calculator for toilet facilities in new public buildings and buildings that are undergoing a change of use. The calculator is guidance under section 175 of the Building Act 2004 and does not change any of the current requirements, which have been in place since 2000.

The calculator simplifies the complex manual calculation provided in Acceptable Solution G1/AS1. It will help designers calculate the number of sanitary facilities needed in new public buildings and buildings undergoing a change of use.  It will also simplify consenting and compliance checking by building consent authorities.

The online calculator uses two methods to calculate the number and type of facilities needed:

  • the building type and the number of occupants
  • the building type and occupant densities multiplied by the floor area of the building to get the number of occupants.

The calculator delivers a variety of options, including unisex and single sex facilities. Results can be saved in PDF format or printed.

Acceptable Solution G1/AS1 will still be needed to provide details, for example where toilets are needed, toilet layouts, privacy and accessible facilities. Limitations are listed in the supporting FAQs.