16.02.050 Design standards.
The following standards apply to all subdivisions within the city:
A. Lot Standards. All resulting lots shall comply with the lot standards for the zone district. Lots shall be perpendicular to the street. Double frontage lots are prohibited unless the planning commission, with the recommendation of the development review committee, determines that:
1. The topography or other unusual condition exists that requires deviation from the standard; and
2. If the rear yard is adjacent to a collector or arterial street, the applicant shall install a six-foot masonry wall or its functional equivalent, unless for aesthetic or safety reasons such requirement is waived.
B. Street Layout.
1. Streets shall comply with the city’s transportation master plan.
2. Streets shall align with and connect to existing streets on adjoining properties unless the planning commission, with the recommendation of the development review committee, determines that the general plan, topography, traffic demands or other conditions make it better to depart from the system.
3. Streets shall be laid out in a manner that reduces, to the extent possible, dead-end roads and promotes connectivity.
4. Streets shall be laid out in a manner that provides future access to undeveloped and underdeveloped property.
5. The planning commission, after recommendation by the development review committee, may grant up to a ten percent density bonus or up to a ten percent reduction to width, depth, frontage, area, and setback requirements when the layout of future access as required herein results in a reduction of ten percent or more of buildable units. The bonus or reduction approved by the planning commission should be roughly proportional to the reduction in buildable units due to future access, up to a maximum of ten percent. When providing such approval, the planning commission must explicitly make the applicable findings and must include the specifics of the bonus or reduction granted in its motion.
C. Landscaping. Along all streets, the applicant shall install deciduous trees, two inches in caliper, for each thirty feet of frontage.
D. Infrastructure. All preliminary plats shall include subdivision improvement plans for subdivision improvements required by the city engineer pursuant to Section 18.01.010.
E. Private Streets. The applicant may propose private streets within the subdivision so long as the proposed street(s) include a right-of-way width of thirty-five feet, with twenty feet of pavement installed to city specifications and fire code, two and one-half feet of curb and gutter on each side and either a five-foot sidewalk adjacent to the curb on both sides or a four-foot sidewalk and a five-foot park strip on one side.
1. Private streets shall align with and connect to existing streets, whether public or private, on adjoining properties unless the planning commission, after recommendation of city staff, determines that the general plan, topography, traffic demands, or other conditions make it better to depart from the system.
2. To the extent possible, private streets shall be laid out in a manner that reduces dead-end roads and promotes connectivity.
3. Private streets shall be laid out in a manner that provides future access to undeveloped and underdeveloped property.
4. The planning commission, after recommendation by the development review committee, may grant up to a ten percent density bonus or up to a ten percent reduction to width, depth, frontage, area, and setback requirements when the layout of future access as required herein results in a reduction of ten percent or more of buildable units. The bonus or reduction approved by the planning commission should be roughly proportional to the reduction in buildable units due to future access, up to a maximum of ten percent. When providing such approval, the planning commission must explicitly make the applicable findings and must include the specifics of the bonus or reduction granted in its motion.
5. All new private streets shall comply with the following street lighting standards:
a. Light sources shall be at least as efficient as LED and no greater than four thousand K in correlated color temperature (CCT).
b. Light fixtures shall use a cutoff luminaire that is fully or partially shielded with no light distributed above the horizontal plane of the luminaire or into nearby residential structures.
c. Luminaires shall be mounted at a height no higher than twenty feet above the adjacent roadway.
d. Streetlights shall be placed at intersections and at a frequency no less than one streetlight per every one hundred fifty feet of roadway, rounded up to the next whole number. Streetlight locations shall alternate sides of the street to the greatest extent possible.
e. Poles and fixtures shall be black, dark brown, or another neutral color approved by the community development director.
f. Poles, luminaires, sources, and associated fixtures shall match in construction those used on public streets to the greatest extent possible. The community development director may exempt an applicant from this requirement if the applicant is implementing a thematic design which incorporates lighting.
F. Lighting Plan. A lighting plan is required for all developments and must contain the following:
1. Plans indicating the location on the premises, and the type of illumination devices, fixtures, lamps, supports, reflectors, installation and electrical details.
2. Description of illuminating devices, fixtures, lamps, supports, reflectors, and other devices that may include, but is not limited to, manufacturer catalog cuts and drawings, including section where required; and photometric data, such as that furnished by manufacturers, or similar showing the angle of the cutoff or light emission.
3. A point-by-point light plan to determine the adequacy of the lighting over the site.
G. Driveways. Lots which lack frontage on a public or private street, when permitted by the zoning ordinance, shall utilize access easements. Residential flag lots may share an access drive for up to two residential structures in addition to any access required by the frontage lot when the access drive is at least twenty feet wide and the units with frontage on the street have the required side setback between the unit and the driveway. (Ord. 2024-01 § 1 (Att. A))