6.17.2 Review and Improve
An audit on the existing provisions (6.17.2a) should be conducted prior to planning of addition and alterations works. This is particularly important for historical buildings. Major addition and alteration works provide an opportunity to improve and upgrade the accessible facilities in the existing premises. However, the planning of additional facilities within the existing premises should not take away accessible facilities already provided unless the same or enhanced facilities can be provided in the improvement works.

The maintenance aspect and ease of use of the fixtures, fittings and features are factors for consideration when improvement works are planned. For example, in considering the provision of a ramp or a platform lift, apart from ease of access and installation, spatial constraint, the recurrent cost to maintain such equipment should be considered as well.

Furthermore, as new technology and materials become available in the market, more options for accessibility could be considered.