20.30.100 Accessory buildings and uses.
A. Generally.
1. Uses and buildings accessory to the permitted principal use shall be allowed unless specifically prohibited.
2. Uses accessory to a conditional use shall be permitted outright if contained within the main building. Buildings accessory to the main building of a conditional use shall be permitted outright if less than 800 square feet in total floor area. However, if said building will exceed 800 square feet in total floor area, separate approval as a conditional use is required.
3. Exempt home occupations and babysitting shall be considered an accessory use.
B. Regulations.
1. The regulations of BMC 20.30.040 shall apply to all accessory buildings except that:
a. Accessory buildings shall not exceed one story in height, or 12 feet under either height definition.
b. Accessory buildings may be located in a rear yard and in the rear 22 feet of an interior side yard.
c. An accessory building that consists partly or entirely of a detached accessory dwelling unit may be allowed pursuant to BMC 20.10.036.
2. Buildings accessory to single-family homes shall not be used for human habitation other than the resident family, nor used to conduct any business, unless specifically permitted.
3. Accessory buildings shall not be constructed prior to the commencement of the construction of the main building.
4. An accessory building may not exceed 800 square feet in area, provided:
a. The hearing examiner may approve, by conditional use permit, larger buildings after proper review and consideration; or
b. If the accessory building consists partly of a detached ADU, the standards in BMC 20.10.036 shall apply. [Ord. 2018-05-009 § 15; Ord. 2002-10-069 § 52; Ord. 9024, 1982].