Section 105.2, Work exempt from permit, under the International Building Code (IBC) and International Residential Code (IRC) is adopted and amended as follows:

Exemptions from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction.

1. The work exempt from permit under IRC Section 105.2 (1) is amended to read: One-story detached buildings used as tool and storage sheds, garages, playhouses, agricultural buildings and similar uses, provided that such buildings are for private use only and are accessory to single family dwellings and provided the floor area does not exceed 400 square feet. Eaves may project not more than 24 inches beyond the wall line.

2. The work exempt from permit under IBC Section 105.2(1) is amended to read: One-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses, provided the floor area does not exceed 120 square feet.

3. The work exempt from permit under IBC Section 105.2 (6) is amended to read: Sidewalks, and driveways not more than 30 inches (762 mm) above adjacent grade, and not over any basement or story below and are not part of an accessible route.

4. The work exempt under IBC/IRC Sections 105.2 is amended to include the following exemption: Minor construction and alteration activities to single-family dwellings (R-3 and IRC) and their accessory structures where the total valuation, as determined by the Building Official or as documented by the applicant to the satisfaction of the building official, does not exceed $1,500 in any 12-month period; provided that, the construction and/or alteration activity does not affect any structural components or reduce existing egress, light, air, and ventilation conditions. This exemption does not include electrical, plumbing, or mechanical activities. The permit exemption shall not otherwise exempt the construction or alteration from the substantive standards of the codes enumerated in Section 19.27.031 RCW, as amended and maintained by the state building code council under Section 19.27.070 RCW.

5. The work exempt under IRC Section 105.2 (10) is amended to read: Decks not more than 30 inches vertically above grade at any point measured horizontally 36 inches from the edge of the deck to adjacent grade.

Unless otherwise exempted, separate plumbing, electrical, and mechanical permits will be required for work exempt under IBC/IRC Section 105.2 and as amended in this Section.