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• AGENDA ITEM E-1 ATTACHMENT 1 DATE: July 16, 1990 MEMORANDIIM: TO: Planning Commission FROM: Susan Hoyt, City Planner RE: Proposed Code Revision to 9-2.04 (2)(b) - Lot Coverage of Detached Accessory Buildings. The proposed amendment to lot coverage of detached accessory structures reads: Area: Detached accessory buildings shall not occupy more than 35~ of the area of an existing rear yard, and shall not exceed a total of 1,000 sq. ft. The intent of this revision was to allow homes in the Northome neighborhood to construct standard two and one-half car garages approximately 528 to 576 sq. ft. in size on the 50 ft. wide lots (attachment 3). This neighborhood is particularly affected by this section of the code because most garages are detached accessory buildings along the alleys. However, after reviewing this proposed revision, I find that the use of the term "existing" rather than "required" rear yard may accommodate larger structures and greater lot coverage than is desirable. Applying the proposed code revision to an average existing rear year of 50 ft. measured from the rear of the residence to the rear property line (attachment 2), the following lot coverage would be allowed: 50 ft. wide x 50 ft. deep x .35 percentage = 875 sq. ft. of lot coverage This would mean a person could potentially build an accessory building(s) 25 ft. x 35 ft. or 875 sq. ft. on these lots. This is 58 percent of the required rear year. This substantially exceeds the lot coverage needed to build a 24 ft. x 24 ft. garage, which is a very large, but reasonably sized residential garage (attachment 2, figure 1). Furthermore, allowing this large lot coverage may be undesirable for the following reasons: 1. The existing rear yard may be reduced in size due to an addition after the detached accessory structures are constructed. It is only the required rear year that is guaranteed free from residential additions (attachment . 2, figure 1). 1