§ 514. Residential Structures in the RA and RB Zones

A. Purpose. The purpose of this section is to provide limitations on the massing and size of residential structures to ensure that new development is designed in a manner that complements traditional construction styles and in particular, protects the viewshed and quality of life of island neighbors, residents and visitors.

B. Applicability. This section shall apply to all single family dwellings, accessory structures, accessory residential structures and secondary dwelling units proposed within the RA and RB Zones for which a building permit is issued after the effective date of October 6, 2008. Where there is a conflict between the standards contained in this section and those in any other applicable section of this ordinance, the most restrictive standard shall apply.

C. Standards. The following standards shall apply (See Section 202, Definitions: "Plane, Building," "Plane, Wall," "Building Footprint," "Building Volume"):

1. No residential structure shall have a wall plane in excess of 45 feet in length (See Appendix I, Figures 4 and 5).

2. No residential structure shall be constructed with a building plane in excess of 75 feet in length (See Appendix I, Figures 5 and 6).

3. In no case shall a building footprint of any residential structure, principal or accessory, exceed 5,000 square feet (See Appendix I, Figure 6).

4. In no case shall the volume of any residential structure, principal or accessory, exceed 80,000 cubic feet.

5. The roof design and pitch of all new residential structures constructed at a height greater than 28 feet shall comply with the following standards:

a. Hip roofs and Gable roofs, including gable dormers but excluding porch roofs, shall be constructed at a minimum pitch of 7 inches vertical over 12 inches horizontal.

b. Shed dormers shall be constructed at a minimum distance of two feet horizontally from exterior gable end walls.

c. Gambrel roofs shall be constructed so that they are compatible with the pitch and proportion of historic gambrel roofs on the island.

d. Mansard roofs shall be constructed so that they are compatible with pitch and proportions of historic mansard roofs on the island.

e. Flat roofs shall not be permitted.

(Entire Section Added October 6, 2008)