Only if the project to add a LULA or lift is less than 20% of the cost of renovations/alterations.... Since this is not an addition or new construction but in reality a repair... the accessibility must meet the criteria for an existing building since the existing use is staying the same. I assume that the CBC and the IBC are similar in language,,,,
3411.9 Historic buildings.
These provisions shall apply to facilities designated as historic structures that undergo alterations or a change of occupancy, unless technically infeasible. Where compliance with the requirements for accessible routes, entrances or toilet rooms would threaten or destroy the historic significance of the facility, as determined by the applicable governing authority, the alternative requirements of Sections 3411.9.1 through 3411.9.4 for that element shall be permitted.
Exception: Type B dwelling or sleeping units required by Section 1107 are not required to be provided in historical buildings.
3411.9.1 Site arrival points.
At least one accessible route from a site arrival point to an accessible entrance shall be provided. 3411.9.2 Multilevel buildings and facilities.
An accessible route from an accessible entrance to public spaces on the level of the accessible entrance shall be provided. 3411.9.3 Entrances.
At least one main entrance shall be accessible.
Exceptions: 1. If a main entrance cannot be made accessible, an accessible nonpublic entrance that is unlocked while the building is occupied shall be provided; or2. If a main entrance cannot be made accessible, a locked accessible entrance with a notification system or remote monitoring shall be provided.
Signs complying with Section 1110 shall be provided at the primary entrance and the accessible entrance. 3411.9.4 Toilet and bathing facilities.
Where toilet rooms are provided, at least one accessible family or assisted-use toilet room complying with Section 1109.2.1 shall be provided.