A. Blocks: When reviewing proposed lot and block arrangements, the following factors shall be considered:
1. Adequate Building Sites Required: Provisions of adequate building sites suitable to the special needs of the type of land use (residential, commercial or other) proposed for development shall be provided, taking into consideration topographical and drainage features.
2. Minimum Lot Sizes Established: Minimum zoning district and lot requirements defining lot sizes and dimensions shall be accommodated without creating unusable lot remnants.
3. Block Width: The width of the blocks should be arranged so as to allow two (2) tiers of lots with utility easements, except where a single row of lots backs up to an arterial street.
4. Block Lengths: No residential block shall be longer than one thousand feet (1,000').
5. Dead End Streets: Except as authorized by the city council, all proposed streets must be extended to the property line. The council may require the construction of a temporary turnaround having a minimum radius of fifty feet (50'). Reserve strips shall not be allowed.
6. Cul-De-Sac Or Court Blocks: Blocks that terminate in a cul-de- sac or court shall be permitted if the form or contour of the land makes it difficult to plat connecting streets. Cul-de-sacs and courts shall be no longer than six hundred feet (600') and shall have a turnaround with a minimum radius of fifty feet (50'). The city may require a ten foot (10') wide pedestrian crosswalk to connect the cul-de-sac with adjacent development.
7. Pedestrian Walkways: Where blocks are over six hundred feet (600') in length, the city may require a crosswalk with a right of way of at least ten feet (10') in width near the center of the block.
B. Single-Family Lots:
1. Lot Depth: Except as provided in subsection D of this section, no residential lot shall have a depth of less than one hundred feet (100').
2. Single-Family Lots Less Than Ten Acres: Single-family lots smaller than ten (10) acres shall be deeper than wide, with a depth to width ratio not greater than three to one (3:1).
3. Cul-De-Sac Lots: Cul-de-sac lots shall have a minimum width of twenty feet (20') at the street line.
4. Minimum Yard Requirements: The minimum yard requirements shall be increased to thirty feet (30') for any lot or parcel boundary which abuts an arterial street along the front, side or rear property line.
5. Principal Buildings Per Lot: Only one principal building is permitted on a lot except within a PUD (planned unit development) district.
6. Lot Arrangement: The lot arrangement and design shall be such that all lots will provide satisfactory and desirable building sites, properly related to topography and to the character of surrounding development.
7. Lots At Intersections: Lots at street intersections shall have a radius of twenty feet (20') at the street corner, except a chord may be required in lieu of the circular arc where warranted.
8. Lot Frontage: All lots shall front on a public street. (Ord. 03-O-9, 3-18-2003)
C. High Density Residential Construction:
1. (Rep. by Ord. 08-O-28, 10-7-2008)
2. A zero side setback will be permitted between abutting buildings for townhomes, condos and zero lot line development, subject to building and fire code requirements.
3. When dwellings are attached by common party walls, each dwelling shall be metered separately for water and electric services.
D. Compact Housing Types: Lot depth, lot width, and the front, side and rear yard setbacks listed in table 8-2 of this section shall apply to the listed housing types when permitted in a PUD district.
TABLE 8-2: LOT STANDARDS FOR COMPACT HOUSING TYPES IN RESIDENTIAL DISTRICTS AS PERMITTED
Housing Type | Lot Minimums | Minimum Building Setback Feet | ||||
Area Square Feet | Width | Depth | Front | Side1 | Rear | |
Patio homes | 6,000 | 50 | 80 | 20 | 10 | 20 |
Zero lot line homes | 4,000 | 45 | 70 | 20 | 0 | 20 |
Duplex/twinplex | 6,500 | 55 | 80 | 15 | 7 | 20 |
Townhouse | 2,000 | 20 | 70 | 10 | 252 | 20 |
Multi-family3 | 10,000 | 100 | 100 | 25 | 252 | 20 |
Notes:
1. A minimum distance of 10 feet is required between buildings on adjacent lots.
2. A minimum of 25 feet must be provided between multi-family buildings on the same parcel.
3. See subsection 10-8-1B9 of this chapter for more standards applicable to multi- family dwellings.
E. Nonresidential Uses:
1. Canopy Setback: Canopies connected to or detached from the main building shall be set back a minimum of fifteen feet (15') from any property line, except in the C-3 district.
2. Side Yard Setback: No interior side yard will be required on contiguous lots developed as a common project, except as required to comply with fire codes.
3. Accessory Structure Setback: Accessory structures shall be located a minimum of twenty feet (20') from all property lines. (Ord. 03-O-9, 3-18-2003)
F. Corner Lots; Sight Triangle:
1. Width: Corner lots shall have a width sufficient to permit the establishment of required building lines on both sides of the adjoining streets (see exhibit 8-3 of this section). The front yard of the corner lot will be determined by the building official. (Ord. 07-O-16, 4-3-2007)
Exhibit 8-3
2. Visibility At Intersections: Except in the C-3 central business district, no fence, sign, structure, or planting higher than thirty inches (30") above the established street grades shall be maintained within twenty feet (20') of any street intersection right of way. On a corner lot in any district, no fence, wall, hedge, shrub, sign or structure shall obstruct vision between a height of two and one-half feet (21/2') and ten feet (10') above the centerline grades of the intersecting streets within the designated sight triangle, or required as follows:
a. For intersections in the C-1 district or the intersections of two (2) local or collector streets, the triangular area formed by connecting the right of way lines, at points which are twenty five feet (25') distance from the intersection of the right of way lines, and measured along the right of way lines; or
b. For intersections involving two (2) arterial streets, the triangular area formed by connecting the right of way lines of the intersecting streets at points which are one hundred feet (100') from their point of intersection; or
c. For intersections involving arterials and other streets, the sight triangle shall extend from the point of intersection of the rights of way a distance of one hundred feet (100') down the arterial street and twenty five feet (25') along the other street.
d. The building official may allow modifications to the distance required at intersections if the safety of pedestrians, bicyclists and motorists is ensured.
3. Access: Corner lots adjacent to streets of unequal classification shall access the street of the lesser classification (e.g., designed for the least capacity), based upon traffic volume.
G. Through Lots: Through lots or double frontage lots shall be prohibited in residentially zoned areas, except when the rear of the lot abuts an arterial street and no access to that street is allowed.
H. Flag Lots: Flag lots shall be prohibited.
I. Lot Lines: All lots, so far as practical, shall have side lot lines at right angles to straight street lines or radial to curved street lines. Unusual or odd shaped lots having boundary lines that intersect at extreme angles shall be avoided.
J. Lot Orientation: The lot line common to the street right of way line shall be the front line. All lots shall face the front line and a similar lot across the street. Wherever feasible, lots shall be arranged so that the rear line does not abut the side of an adjacent lot.
K. Lot Access: Lot access shall be provided in conformance with subsection 10-9-6F of this title.
M. Lot Remnants: No lot or parcel shall be created which fails to meet the minimum standards of the applicable zoning district and this title, except pursuant to a PUD that provides for the perpetual maintenance of such remnants.
N. Number Of Principal Uses And Structures Per Lot: In any commercial or industrial district, more than one principal structure may be erected on a single lot; provided, that the area, yard and other requirements of this title shall be met for each structure as though it were on an individual lot. (Ord. 03-O-9, 3-18-2003)