The following property development standards shall apply to all land and structures in the R-1 zone:
(A) Lot Area. Each lot shall have a minimum area of six thousand square feet. Also see (K) of this section modified minimum lot area and minimum population density standards.
(B) Lot Dimensions.
(1) Width—Each lot shall have a minimum width of seventy feet;
Exception: Cul-de-sac lots shall have a minimum lot width at the front property line of forty feet,
(2) Depth—Each lot shall have a minimum depth of eighty feet.
(C) Population Density. There shall be a minimum of six thousand square feet of lot area for each dwelling unit; provided, however, that, subject to the conditional use permit provisions of Section
25.05.030, there shall be no more than one dwelling on any one lot. Also see (K) of this section:
(D) Building Height.
(1) No new building, additions to existing buildings or structures in this zone shall have a height greater than permitted under the following table when measured from the finished or natural grade, whichever is more restrictive:
Slope in Percent | Height Permitted (in feet) |
|---|
0 to 15 | 25 |
16 | 26 |
17 | 27 |
18 | 28 |
19 | 29 |
20 and over | 30 |
(2) Through Lots. On a through lot, height shall be measured from the higher curb or street centerline.
(3) In addition to (D)(1) above, building height shall be limited to the following:
Rear Lot Line Above Street (slope in percent) | Height Permitted Above Rear Lot Line (in feet) |
|---|
0 to 5 | 25 |
5+ to 10 | 20 |
Over 10 | 15 |
Through Lot (slope in percent) | Height Permitted Above Upper Curb Elevation (in feet) |
|---|
0 to 5 | 25 |
5+ to 10 | 22.5 |
10+ to 15 | 20 |
15+ to 20 | 17.5 |
Over 20 | 15 |
Rear Lot Line Below Street (slope in percent) | Height Permitted Above Curb Elevation (in feet) |
|---|
0 to 5 | 25 |
5+ to 10 | 22.5 |
10+ to 15 | 20 |
15+ to 20 | 17.5 |
Over 20 | 15 |
(4) Note: Building Height to Front Yards: See Section
25.50.004(D) for further height restrictions in relation to yard requirements.
(5) Note: Special Standards: See Section
25.10.010 for specified areas with special height standards.
(6) The city council, when the planning commission deems it necessary and desirable due to special topographic or other localized conditions, may, by ordinance, establish special building height standards for a specified area within the R-1 zoning district more restrictive than the standards set forth in this subsection.
(E) Yards.
(1) General Provisions.
(a) The general provisions of Chapter
25.50 shall apply.
(b) Schools, churches, country clubs and other nonresidential uses shall observe yards no less than twenty feet from all property lines. Yard areas in excess of the above may be required under the conditional use permit provisions of this title.
(c) The maximum lot area which may be occupied by habitable enclosed building space and covered off-street parking shall depend on lot size. For lots four thousand square feet and under, site coverage shall not exceed forty-four percent and for lots eight thousand square feet and over, site coverage shall not exceed thirty-five percent. The maximum site coverage percentage permissible on any residential lot shall be calculated using the following formula:
Building Site Coverage (%) | = 35 + | (8,000-A) x 9 | |
| | 4,000 | |
Where A = lot area (square feet) |
For example, if the lot area is six thousand six hundred twenty-five square feet, the maximum allowable building site coverage would be calculated as follows: |
Lot Area (A) = 6.625 square feet |
Building Site Coverage (%) | = 35 + | (8,000-A) x 9 | |
| | 4,000 | |
| = 35 + | (1,375) x 9 | |
| | 4,000 | |
| = 35 + | 3.094 | |
BSC (%) = 38.09 | | | |
(d) The building site coverage requirement shall only be modified by the design review board when it is necessary to preserve views, preserve privacy, reduce heights or to maintain neighborhood development patterns.
(2) Front Yard.
(a) Each lot shall maintain a front yard or front yards of not less than twenty feet. Front yards shall not be used for accessory buildings, clotheslines, air conditioning or pool equipment, the storage of trailers, boats, campers, or other materials, or the regular or constant parking of automobiles or other vehicles.
(3) Side Yard.
(a) The width of each side yard shall be not less than ten percent of the average lot width, but in no case less than three feet; except that when the average lot width is forty feet or greater, no side yard shall be less than four feet.
(1) On triangular, gore-shaped or irregular lots, side yards shall be ten percent of the lot width at any point, with a minimum of three feet.
(2) Side yards shall not be used for accessory buildings, clotheslines, air conditioning or pool equipment, the storage of trailers, boats, campers or other materials, or the regular or constant parking of automobiles or other vehicles, except for the required additional parking space when approved by the Design Review Board in accordance with Section 25.52.012(f).
(3) The side yard setback requirement may be increased by the design review board if it is determined that it is inadequate due to existing development patterns in the surrounding area.
(b) Accessory Buildings in Side Yards. Except as provided for in Section
25.50.004(F)(3), accessory buildings shall maintain a side yard of the same width as required of the main building.
(4) Rear Yard.
(a) Each lot shall maintain a rear yard of not less than twenty feet, except as noted in Section
25.50.008(E). The rear yard requirement may be increased to twenty-five feet by the design review board when it is determined that existing development patterns in the surrounding area (such as in South Laguna) have existing rear yards greater than twenty feet.
(b) In the case of an irregular, triangular or gore-shaped lot, the required setback shall be measured from a rear lot line established as a line within the lot, ten feet long, parallel to and at a maximum distance from the front lot line. A lot which is bounded on all sides by streets may have no rear lot line.
(c) Accessory Buildings in Rear Yards. A detached garage or carport located in a rear yard abutting an alley and which garage can be entered by vehicle from the alley must maintain a setback of twenty-five feet from the opposite side of the alley, but in no case shall such a garage or carport be closer than five feet to the rear lot line.
(F) Fences, Hedges and Walls. The provisions of Section
25.50.012 shall apply.
(G) Space Between Buildings. The provisions of Section
25.50.014 shall apply.
(H) Access. The provisions of Chapter
25.53 shall apply.
(I) Signs. The provisions of Chapter
25.54 shall apply.
(J) Off-street Parking. The provisions of Chapter
25.52 shall apply.
(K) Modified Minimum Lot Area and Maximum Population Density Standards.
(1) The minimum lot area and maximum population density as set forth in this section have been modified where, on the official zone map, a number greater than six thousand follows and is connected with a hyphen with the zone symbol. Such number shall designate the minimum lot area required in square feet.
(2) Where a number less than one hundred and the word "acre" or "acres" follows and is connected with a hyphen with the zone symbol, such number shall designate the minimum allowable acreage of the lot.
(L) Design Review. Structures, physical improvements, and site developments shall be subject to the provisions of Section
25.05.040.
(M) Residential Compatibility. All new development shall be compatible with the immediate residential neighborhood with respect to scale, mass and height.
(N) Community Design and Landscape Guidelines. Where applicable, landscaping shall be provided in accordance with the community design and landscape guidelines as adopted by Resolution No. 89-104 or as amended thereafter.
(O) Landscaped Open Space Requirement. All new homes or major remodels shall provide the following minimum ground-to-sky landscaped open space or landscaped area, depending on the lot size:
Lot Area | Required Minimum Landscaped Area |
|---|
2,500 sq. ft. or less | 15% |
2,500 to 14,500 sq. ft. | Percentage based on the following formula: 15% + [((A—2500) x 20) / 12,000] Where A = lot size in sq. ft. |
14,500 sq. ft. and over | 35% |
Landscaped open area or landscaped area shall be any combination of living plants (such as grass, ground cover, shrubs, vines, hedges or trees). To qualify as part of the required landscaped area there must be a minimum dimension of three-feet. The landscaped area may be located anywhere within the lot, including the buildable or setback areas. A major remodel is a structural renovation and/or addition, which equals or exceeds fifty percent of the original gross floor area of the structure on the lot. |
(Ord. 209, 1940; Ord. 431, 1958; Ord. 437, 1959; Ord. 525, 1963; Ord. 622, 1969; Ord. 632, 1969; Ord. 641, 1970; Ord. 721, 1972; Ord. 724, 1972; Ord. 832 §§ 2, 3, 1975; Ord. 845 § 1, 1975; Ord. 859 § 1, 1976; Ord. 898 § 1, 1977; Ord. 969 § 2, 1979; Ord. 983 § 1, 1980; Ord. 1187 § 3(3), 1989; Ord. 1223 § 1, 1991; Ord. 1354 § 1, 1999; Ord. 1416 §§ 7, 8, 2002; Ord. 1475 § 1, 2007)