15.80.070 Standards – Interior routes.
A. New Construction – Mandatory to Install. There are no mandatory installations related to interior routes in a visitable residential dwelling.
B. New Construction – Mandatory to Offer. The following options for accessible interior routes on the primary entry level shall be offered and, if accepted, installed at the request and cost of the purchaser/owner if requested when installation is consistent with SMC 15.80.130:
1. At least one accessible route through the hallways consistent with the requirements of CBC Chapter 11A from the accessible entrance of the dwelling unit to the primary entry level powder room or bathroom, a common use room and the kitchen if located on the primary entry level.
2. No sunken or raised area in the bathroom or powder room, the common use room and the kitchen if on the primary entry level, on an accessible route.
3. Handrails installed in a manner consistent with CBC Chapter 11A on one or both sides of the accessible route, at the option of the purchaser/owner.
4. Handrail reinforcement installed on one or both sides of the accessible route.
5. An accessible route with a minimum width of 42 inches. A 39-inch hallway width may be provided when all doors leading to any bathroom, powder room, common use room or kitchen if on the primary entry level that must be accessible have a minimum clear door opening of 34 inches and a 36-inch hallway width may be provided when all doors leading to any bathroom, powder room, common use room, or kitchen on the primary entry level that must be accessible have a minimum clear door opening of 36 inches.
C. Substantial Rehabilitation. Any substantial rehabilitation of the interior route which leads to one primary floor powder room or bathroom shall comply with the requirements of subsection B of this section and the requirements and options in SMC 15.80.080(B) applicable to the interior route from the primary entrance shall be offered and, if accepted, installed at the request and cost of the purchaser/owner if requested when installation is consistent with SMC 15.80.130.