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Off-street parking: <br />• Residential (except senior citizen <br />housing) <br />See TMC 18.56, Off-street <br />Parking/Loading Regulations <br />• Office <br />3 per 1,000 sq. ft. <br />usable floor area <br />• Retail <br />2.5 per 1,000 sq. ft. <br />usable floor area <br />• Manufacturing <br />1 per 1,000 sq. ft. <br />usable floor area minimum <br />• Warehousing <br />1 per 2,000 sq. ft. <br />usable floor area minimum <br />• Other uses, including senior citizen <br />housing <br />See TMC 18.56, Off-street <br />Parking & Loading Regulations <br />Performance Standards: Use, activity and operations within a structure or a site <br />shall comply with (1) standards adopted by the Puget Sound Air Pollution Control <br />Agency for odor, dust, smoke and other airborne pollutants, (2) TMC 8.22, "Noise", <br />and, (3) adopted State and Federal standards for water quality and hazardous <br />materials. In addition, all development subject to the requirements of the State <br />Environmental Policy Act, RCW 43.21C, shall be evaluated to determine whether <br />adverse environmental impacts have been adequately mitigated. <br />Section 9. Ordinance Nos. 2500 §23, and 2098 §2, as codified at TMC Section <br />18.50.050, "Single -Family Dwelling Design Standards," are hereby amended to read as <br />follows: <br />18.50.050 Single -Family Dwelling Design Standards <br />All new single-family dwellings, as well as accessory dwelling units and other <br />accessory structures that require a building permit, must: <br />1. Be set upon a permanent concrete perimeter foundation, with the space <br />from the bottom of the home to the ground enclosed by concrete or an approved <br />concrete product that can be either load bearing or decorative. <br />2. If a manufactured home, be comprised of at least two fully -enclosed <br />parallel sections, each of not less than 12 feet wide by 36 feet long. <br />3. Be thermally equivalent to the current edition of the Washington State <br />Energy Code with amendments. <br />4. Have exterior siding that is residential in appearance including, but not <br />limited to, wood clapboards, shingles or shakes, brick, conventional vinyl siding, fiber - <br />cement siding, wood -composite panels, aluminum siding or similar materials. Materials <br />such as smooth, ribbed or corrugated metal or plastic panels are not acceptable. <br />5. Have the front door facing the front or second front yard, if the lot is at least <br />40 feet wide. This requirement does not apply to ADUs or accessory structures. <br />W: Word Processing\Ordinances\ADU regulations updated strike-thru 6-26-18.doc <br />NG:bjs <br />Page 13 of 18 <br />107 <br />