17.40.040 General Development Standards

A. Location and Required Setbacks. Accessory buildings and structures may be located within required yard areas in compliance with the development standards in Table 17.40.040-1 (General Minimum Setback Standards for Accessory Buildings and Structures). Figure 17.40.040-1 (General Setback Standards for Accessory Buildings and Structures for Interior Lots) illustrates where accessory buildings and structures are generally allowed.

Figure 17.40.040-1. General Setback Standards for Accessory Buildings and Structures for Interior Lots

Table 17.40.040-1. General Minimum Setback Standards for Accessory Buildings and Structures
Location	Setback
Front	120 ft., or 30 ft. behind front line of main structure, whichever is less¹^,²
Side, interior	10 ft.
Side, street side	See Table 17.38.010
Rear	10 ft.
Rear, abutting street	30 ft.³^,⁴
Between structures and buildings	8 ft.⁵^,⁶

B. Height. Unless otherwise specified, the maximum height for all accessory buildings and structures is fifteen feet or one story. Vertical sidewalls or columns shall not exceed eleven feet. No other use of structure shall be located above the first story (i.e., no roof decks, spas, etc.). See chapter 17.42, Building Height and Measurement.

1. Exception for vertical projections. Vertical architectural projections on accessory buildings and structures (e.g., cupolas, spires, towers) may exceed the maximum height by up to two feet, up to a maximum of seventeen feet; provided, that the footprint of the projection is not more than ten percent of the total footprint of the building. Such projections shall be a minimum of twenty feet from rear and side property lines.

C. Lot Requirements. Unless otherwise identified for specific types of structures or buildings, all accessory buildings and structures shall be constructed only in conjunction with or subsequent to the construction of a main building. An accessory structure or building may be located on a lot without a main building only if all of the following conditions exist:

1. The lot containing the accessory buildings or structure is located adjacent to a lot containing a main building;

2. Both such lots are owned by the same property owner; and

3. An agreement between the town and the property owner has been executed and recorded that provides that in the event common ownership of the two lots ceases then the accessory building or structure will be removed or made to conform to all other provisions of this title.

D. Kitchens. One kitchen may be within an approved accessory building or structure.

E. Bathrooms. There shall be no limitation on the number of bathrooms allowed in an accessory building.

F. Connecting Accessory Buildings and Structures. Accessory buildings and structures shall be detached from the main building and other accessory buildings and structures, except that:

1. An accessory building or structure may be connected to another accessory structure/building or a main building by way of a breezeway or covered walkway when the walkway is open on all sides except where connected to the structures. Examples include, but are not limited to, covered walkways connecting the primary dwelling to a detached garage or secondary dwelling. Structures must be located a minimum of eight feet from the main building. The covered walkway may have a maximum width of eight feet and the length of the walk must be a minimum of two feet longer than the width.

2. A garage shall be considered a part of the main building when it is attached and made an integral part of the dwelling and has at least one common wall of least seven feet in length.

G. Floor Area Ratio Calculation. Accessory buildings and structures shall count towards the allowed floor area ratio of the underlying zoning district as identified in section 17.32.040 (Development Standards for Residential District R-1A) and section 17.33.040 (Development Standards for Residential District R-1B), except that floor area ratio shall exclude the following:

1. Roofed areas open on two or more sides not exceeding five percent of the maximum allowed floor area for the lot plus five hundred square feet (e.g., awning, patio cover, covered walk); and

2. Structures, open on all sides, with substantially open roofs (e.g., trellis), that meet the following criteria:

a. No more than one side of the structure is attached to the main building and no more than one side of the structure is enclosed by small structural features (e.g., outdoor kitchens/barbeques, fire pits/fireplaces, cabinets); provided, that on the side with the structural feature at least fifty percent of the side is still open (see figure 17.40.040-2 (Attached Trellis Exempt from Floor Area Requirement)); or

b. No more than two sides shall be partially enclosed with small structural features (e.g., outdoor kitchens/barbeques, fire pits/ fireplaces, cabinets); provided, that at least fifty percent of both sides is still open and the other two sides are completely open.

Figure 17.40.040-2. Attached Trellis Exempt from Floor Area Requirement

H. Windows. Accessory buildings and structures may include windows and/or skylights, except that no window or skylight openings that face the side or rear property line shall be located over nine feet above the ground level.

I. Lighting. All lighting on accessory buildings and structures that are located outside of the main building area shall be shielded or downlit and shall not shine onto adjoining properties.

J. Temporary Habitation. Temporary habitation of an accessory building or structure is permitted for a period of no more than thirty days in any calendar year (consecutive or intermittent). Temporary habitation of an accessory building for more than thirty days may be permitted upon issuance of a Conditional Use Permit when the main building is vacant for remodeling or other similar purposes. (Ord. 609 § 1, 2014; Ord. 605 § 1, 2014; Ord. 582 § 1 (Exh. A (part)), 2009)