Accessory structures are governed by the following requirements.
A. 
Minimum Front Yard and Street Side Yard Setbacks. Accessory structures shall not be located within the front yard or street side yard of a corner lot required for the primary structure, except that arbors, arches and similar structures are permitted within these areas, provided they are located at a walkway, and provided that they do not exceed eight feet in height, five feet in width along the frontage and three feet in depth. The maximum number of such structures shall not exceed two per street frontage and in no case shall exceed three such structures per lot.
B. 
Minimum Interior Side Yard Setbacks.
O District: 15 feet
R-1-40,000, R-1-20,000, R-1-12,500 and GMU Districts: Six feet
R-1-6,000, DR, RM, MP and ORM Districts: Three feet
R-1-3,500 District: None
MU District: None, unless the lot is adjacent to an R District, in which case a minimum side yard of 10 feet shall be provided and maintained.
I District: None, unless the lot is adjacent to an R District, in which case a minimum side yard of 10 feet shall be provided and maintained.
C. 
Minimum Rear Yard Setbacks.
O District: 15 feet
R-1-40,000, R-1-20,000, R-1-12,500 and GMU Districts: Six feet
R-1-6,000, DR, RM, MP and ORM Districts: Three feet
R-1-3,500 District: None
CS District: 10 feet
MU District: None, unless the lot is adjacent to an R District, in which case a minimum side yard of 10 feet shall be provided and maintained.
I District: None, unless the lot is adjacent to an R District, in which case a minimum side yard of 10 feet shall be provided and maintained.
D. 
Notwithstanding the above, no accessory structure used for human habitation, and no swimming pool, or structure containing machinery or other fixed equipment capable of creating noise audible outside of the structure, shall be located closer than five feet to a side or rear property line and shall not exceed the sound level standards as set forth in Chapter 9.32 HMC.
E. 
Notwithstanding the above, on reversed corner lots, an accessory structure shall not be located closer to the rear property line than the required side yard on the adjoining key lot.
F. 
Notwithstanding the above, detached covered parking setbacks shall be governed by HMC § 20.16.170(D).
(Ord. 950 § 2 (Exh. A § 1820), 1998; Ord. 956 § 2 (Att. A § 1820(d)(2)), 1999; Ord. 964 § 2 (Att. A § 1820), 2000; Ord. 971 § 2 (Att. A § 5), 2001; Ord. 1003 § 2 (Exh. A § 17), 2003; Ord. 1010 § 3 (Exh. A § 9), 2003; Ord. 1012 § 2 (Exh. B § 1, Exh. C § 1), 2004; Ord. 1187 § 3, 2019)
In the aggregate, no more than 500 square feet or 10 percent of the combined area of the primary structure's required side and rear yards, whichever is greater, shall be covered by accessory structures, except that up to 400 square feet of detached garage may be located in the required side and rear yard and not count toward the aggregate accessory structure area; provided, that the lot contains no other feasible location for the garage. On reversed corner lots, an accessory structure shall not be located closer to the rear property line than the required side yard on the adjoining key lot.
(Ord. 950 § 2 (Exh. A § 1820), 1998; Ord. 964 § 2 (Att. A § 1820), 2000; Ord. 1012 § 2 (Exh. C § 1), 2004)
A. 
Accessory structures shall not exceed a height of 12 feet above finished grade, as measured according to HMC § 20.16.060.
B. 
Notwithstanding the above, the planning and building director may allow heights of accessory structures to extend to a maximum of 18 feet when the following findings can be made in writing:
1. 
The additional height is necessary to allow architectural integrity and harmony between the accessory structure and the main structure.
2. 
An accessory structure height of 18 feet will not result in adverse conditions to adjoining properties nor will it prove injurious to public health or safety.
3. 
All other requirements of the Land Use Code and Building Code have been or will be met.
(Ord. 950 § 2 (Exh. A § 1820(d)), 1998; Ord. 956 § 2 (Att. A § 1820(d)(2)), 1999; Ord. 1003 § 2 (Exh. A § 18), 2003)
Metal cargo, freight or van box type containers, trailers and other similar structures that were constructed and used primarily for commercial or industrial storage, transport or shipping are not permitted in residential, commercial and mixed use zoning districts.
(Ord. 971 § 2 (Exh. A § 6), 2001)