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(Note: This section is not applicable in the Shoreline Overlay District.)

A. Signs, Marquees and Awnings. See Sign Code, Chapter 22B.10 BCC.

B. Garages/Carports on Slopes.

1. If the topography of a lot is such that the front building line is eight feet or more above the street grade, and there is no reasonable way to construct a driveway up to the dwelling level, a garage/carport may be built into the bank and set at least five feet back from the front property line, except as set forth in subsection B.4 below.

2. If the topography of a lot is such that there is no reasonable way to construct a driveway with a slope less than 15 percent to the dwelling level, a garage/carport may be built in the front yard setback, LUC 20.20.010, subject to approval by the Director of the Development Services Department. The garage/carport must be set at least five feet back from the front lot line, and may not exceed 15 feet above street level measured to the peak of a pitched roof or nine feet above street level measured to the top of a flat roof. The garage/carport and its vehicular access must be located and oriented to minimize disturbance of the slope.

3. A garage/carport must comply with the street intersection sight obstruction requirements of BCC 14.60.240.

4. Notwithstanding any other provision of this subsection B to the contrary, a garage/carport may not be located within a critical area or critical area buffer unless allowed under Part 20.25H LUC.

C. Minor Building Elements. Subject to LUC 20.20.025.C.3, minor building elements including patios, platforms, eaves, trellises, open beams, fireplace chimneys, decks, porches, balconies, lanais, bay windows, greenhouse windows and similar elements of a minor character may intrude into a required setback as follows:

1. Any portion of a minor building element which equals or exceeds 30 inches above finished grade at its location may intrude into a required setback a distance no greater than 20 percent of the minimum dimension of that setback, or at least 18 inches, whichever is greater.

2. Any portion of a minor building element which is less than 30 inches above finished grade at its location may extend to any lot line.

3. Except for eaves, the combined length of all minor building elements which equal or exceed 30 inches above finished grade on any building facade shall not exceed 25 percent of the length of that facade.

4. Minor building elements may not be used to extend the enclosed building floor area into the required setback, except chimneys and bay windows protruding no more than 18 inches into the setback may extend to the finished grade at their location.

5. A minor building element may extend into a critical area structure setback required by LUC 20.25H.035 only if it is above the ground level and if vegetation will be maintained in a healthy condition. Solar access to vegetation must be maintained at least 50 percent of daylight hours during the normal growing season.

Note: Heat pumps are not minor building elements. Retaining walls and rockeries 30 inches or greater in height are not minor building elements.

D. Rockeries and Retaining Walls. On a lot of less than 30,000 gross square feet or on any single-family lot, rockeries and retaining walls 30 inches or greater in height may extend into setbacks established by LUC 20.20.010; provided, that the existing grade change is such that no feasible alternative to location or height exists. In any event, the critical area buffer and structure setbacks of LUC 20.25H.035 apply.

E. Underground Buildings and Buildings Constructed Partially Below Grade.

1. Limitations. This subsection cannot be used to develop any building (including an underground building) which intrudes into critical areas, critical area buffers, or critical area structure setbacks required by Part 20.25H LUC.

2. Subject to the limitations contained in this subsection E, underground buildings may intrude in the required setback.

3. Subject to the limitations contained in this subsection E, buildings constructed partially below grade and not higher than 30 inches above existing or finished grade, whichever is lower, may intrude into required setbacks subject to the following conditions:

a. The 30-inch height limit must be met at all points along the building except those areas necessary to provide reasonable ingress and egress to the underground portions of the building; and

b. The rooftop of the building shall be screened from abutting properties with 10 feet of Type II landscaping as described in LUC 20.20.520.G.2 except that the required trees shall be a minimum of 10 feet in height at planting or, if a use is proposed for the rooftop, the rooftop may be landscaped consistent with the planting requirements for the specific use that is proposed and for the land use district in which the use is located. All landscaping shall comply with standards set forth in LUC 20.20.520. The provisions of LUC 20.20.520.J (Alternative Landscaping Option) are applicable.

F. Stormwater BMPs. Where feasible, stormwater BMPs, as required by the 2014 Department of Ecology Stormwater Management Manual for Western Washington, now or as hereafter amended, may be located within setbacks required in LUC 20.20.010, provided they conform to the setback requirements in the City of Bellevue Storm and Surface Water Engineering Standards, now or hereafter amended. (Ord. 6417, 5-21-18, § 14; Ord. 6323, 11-21-16, § 4; Ord. 5683, 6-26-06, § 6; Ord. 5232, 6-26-00, § 3; Ord. 5089, 8-3-98, §§ 6, 7; Ord. 4973, 3-3-97, § 889; Ord. 4816, 11-27-95, § 989; Ord. 4654, 6-6-94, § 23; Ord. 3775, 5-26-87, § 8)