Building Code Board of Appeals Agenda and Packet 2009 09 17

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City of Lafayette Ordinance 39, Series 2007 Page 4 of6 calculation of the number of visitable dwelling units that are required pursuant to subsection (a) above results in a whole number and a fraction that is less than 0.75 then the total number of visitable dwelling units required within the Residential Development shall be equal to the whole number. Section 30-4 1 3. Visitability Requirements. (a) Visitable Route. One (I) zero-step entrance route (no steps/stair risers) shall be provided to every visitable dwelling unit. The route shall have a minimum width of thirty-six (36) inches. TIle maximum allowed slope shall be I: I 2 (8.3%) and shall comply with Section R31 1.6 of the International Residential Code 2006 (JRC 2006). The zero-step entrance into a visitable floor level of the dwelling unit is allowed to be located at the front, sides, or rear of the dwelling unit, or in an anached garage. When the zero-step entrance is located within an attached garage the visitable route shall begin within the garage. When the zero-step entrance is not located within an attached garage then the visitable route shall begin at the opposite end of the thirty-six (36) inch wide walkway that connects to the visitable entrance. The building official, or his/her representative, shall be responsible for determining where the visitable route begins in the event that an interpretation is necessary. (b) Doors and Doorways. The zero-step entrance route door and all interior doors and doorways on the visitable floor level, except those serving closets or pantries less than fifteen (15) square feet in area, intended for user passage shall have minimum net clear opening width of 32 inches and shall comply with Section 404.2.2 of the International Code Council/American National Standards AI 17.1-2003 (ICCI/>J~SI AII7.1-2003). Where provided, thresholds on the visitable floor level at doorways shall have a maximum beveled height of one-half (1/2) inch and shall comply with Section 404.2.4 ICCIANSI AI 17.1-2003. Door hardware on doors required to comply with the minimum 32 inch net clearing opening width shall include handles, pulls, latches, and/or locks in compliance with Section 404.2.6 ICCIANSI AI17.1-2003_ (c) Interior Hallways. All interior hallways on the visitable floor level shall have a minimum clear width of 36 inches and shall comply with Table 403.5 ICC/ANSI A117. I -2003. (d) Bathrooms. The visitable floor level shall include at least one (I) bathroom, which shall, at a minimum, contain a water closet (toilet) and lavatory (sink). The minimum net clear floor area of the visitable bathroom shall be 30 by 48 inches and shall comply with Section 305 ICCIANSI Al 17.1-2003. Additional net clear floor area shall be required, if necessary, to accommodate the opening and closing of the bathroom door.