Note: Area 1 is as defined in Exhibit A.
A. 
In the Specific Plan No. 4 area, the following primary uses are permitted in the "residential development" portion of lots:
1. 
Single-family residences.
(Ord. 1137, Exh. A, 2003; Ord. 1226 § 1, 2014)
A. 
In the Specific Plan No. 4 area, the following uses are permitted when incidental or accessory to an approved primary use:
1. 
In the "residential development" portion of all lots in Specific Plan No. 4:
a. 
Detached garages;
b. 
Swimming pools;
c. 
Storage sheds and workshops up to two hundred square feet;
d. 
Household pets as described and regulated in Chapter 18.20 Residential Zones Generally;
e. 
Noncommercial agricultural and gardening uses including greenhouses up to two hundred square feet;
f. 
Other similar uses which the development plan review board determines are consistent with the spirit and intent of this chapter.
(Ord. 1137, Exh. A, 2003; Ord. 1226 § 1, 2014)
A. 
Equestrian Area. The following uses are permitted in the equestrian area of "E" lots. Based on the scenic qualities and environmental sensitivity of the area, the items listed are the only allowed uses.
1. 
Keeping of horses, in accordance with Chapter 18.112 of this title;
2. 
Paddocks and corral areas;
3. 
Barns and similar covered horse keeping facilities when located on "E" lots;
4. 
Unlighted recreational courts (tennis courts, basketball courts, volleyball courts, etc.) where the equestrian area on the lot has a minimum total area of twenty thousand square feet, when the court and associated facilities does not preclude the keeping of horses and when the following standards are met:
a. 
No court lighting is permitted;
b. 
Fencing shall be in compliance with Section 18.504.210(A)(6);
c. 
The court shall be located a minimum of twenty-five feet from any property line;
d. 
The entire equestrian area, that is not being used for horse keeping, shall be fully landscaped in such a manner as to adequately screen full view of the court, landscaping shall be in compliance with the Landscape Planting Guidelines for Specific Plan No. 4;
e. 
There shall be a minimum of ten thousand square feet of equestrian area remaining for equestrian use;
f. 
A conceptual plan shall be submitted that shows potential or existing equestrian facilities in the equestrian area, along with the recreational court;
5. 
Native landscape in accordance with Section 18.504.180;
6. 
Fencing in accordance with Section 18.504.210.
B. 
Scenic Easement. The following uses are permitted in the scenic easement area. Based on the scenic qualities and environmental sensitivity of the area, the items listed are the only allowed uses in the scenic easement.
1. 
Native landscape in accordance with Section 18.504.180;
2. 
Fencing in accordance with Section 18.504.210;
3. 
Paved or Nonpaved Accessway. Access walkways shall, in no case, be greater than forty-eight inches in width. Minor retaining walls necessary to provide walkways are permitted and shall be subject to approval by the city.
(Ord. 1137, Exh. A, 2003)
A. 
The following uses are subject to a conditional use permit on the "residential development" portion of Type B and C lots only.
1. 
Lighted and nonlighted recreational courts (tennis courts, basketball courts, volleyball courts, etc.);
2. 
Storage sheds, workshops and greenhouses two hundred square feet and larger;
3. 
Cabanas;
4. 
Retaining wall supported or cantilevered patios and decks.
B. 
The following uses are subject to a conditional use permit on the "equestrian" portion of Type B and C lots only.
1. 
Lighted recreational courts (tennis courts, basketball courts, volleyball courts, etc.) and horse keeping corrals and arenas where requirements of Section 18.504.070(A)(4)(b) through (f) are met, when lighting is shielded from off-site views and when hours of lighting are limited in the conditional use permit.
(Ord. 1137, Exh. A, 2003)
Sections 18.504.090 through 18.504.220 of this chapter are intended to provide standards for residential development on Type B and Type C lots. Type A lots shall be subject to all requirements of Chapter 18.24 of this title.
(Ord. 1137, Exh. A, 2003)
A. 
General. All grading must conform to standards set forth in the attached Exhibits and the standards set forth in this section both of which outline the intended grading techniques.
B. 
Lot Type Classification. All lots within the specific plan have been classified into one of three categories: Type A, Type B or Type C lots. Lot classifications are indicated on Exhibit B.
1. 
Type A Lots. Type A lots are located in areas that are relatively flat. Grading of the entire developable lot area is permitted on Type A lots. The drainage of runoff water will be redirected to the adjacent streets.
2. 
Type B Lots. Type B lots are grouped throughout the specific plan. These lots are characteristically located on minor inclined terrain that represents moderately sensitive landform. Grading on Type B lots is permitted for the placement of an access to permitted uses. This grading may include a slab-on-grade foundation and driveway access to the garage. The grading of the entire lot is not consistent with the intent of a Type B classification. The drainage of runoff will follow its natural course. Minor grading outside the house pad and access may be permitted with development plan review board approval. For the purposes of this section, minor grading shall mean grading that does not exceed a total of two hundred cubic yards of cut and fill (e.g., one hundred fifty cubic yards of cut and fifty cubic yards of fill). The two hundred cubic yard limit does not count export required for in-ground pools and spas. The maximum height of retaining walls created by minor grading shall be four feet. In cases where the development plan review board determines that additional grading will reduce the overall mass and bulk of the proposed structure, the two hundred cubic yard limit may be increased to five hundred total cubic yards (e.g., three hundred cubic yards of cut and two hundred cubic yards of fill).
3. 
Type C Lots. Type C lots are predominately located along major changes in topography and are highly visible to the surrounding community. These lots are located on the most sensitive landform. Grading on Type C lots is restricted to only that earth movement necessary for roadway access and excavation for retaining-type building foundations where there will be no visible signs of grading beyond the structure's main walls. The drainage of runoff will follow its natural course. Minor grading outside the house pad and access may be permitted with development plan review board approval. For the purposes of this section, minor grading shall mean grading that does not exceed a total of two hundred cubic yards of cut and fill (e.g., one hundred fifty cubic yards of cut and fifty cubic yards of fill). The two hundred cubic yard limit does not count export required for in-ground pools and spas. The maximum height of retaining walls created by minor grading shall be four feet. In cases where the development plan review board determines that additional grading will reduce the overall mass and bulk of the proposed structure, the two hundred cubic yard limit may be increased to five hundred total cubic yards (e.g., three hundred cubic yards of cut and two hundred cubic yards of fill).
C. 
Cut and Fill Slopes. No manufactured slopes shall exceed a maximum of two feet horizontal to one foot vertical unless approved by the planning commission through the conditional use permit process as set forth in Chapter 18.200. Manufactured slopes of less than two-to-one may be permitted where adequate slope control measures such as retaining walls or rip-rap embankments are utilized. The slope shall in no case exceed the natural angle of repose of the material. Cut and fill slopes shall be constructed to eliminate sharp angles of intersection with the existing terrain and shall be rounded and contoured as necessary to blend with the natural topography to the maximum extent possible.
D. 
Erosion Control. All manufactured slopes, other than those constructed in rock, shall be planted or otherwise protected from the effects of storm runoff erosion and shall be benched or terraced as required to provide for adequate stability. Planting shall be designed to blend the slopes with the surrounding terrain and development. Manufactured slopes in rock shall be provided with soil pockets to contain landscaping where appropriate. Irrigation facilities shall be required where necessary to provide for property maintenance of the planted areas.
E. 
Slope Maintenance. All slopes shall be maintained in accord with one or both of the following provisions:
1. 
A declaration of covenants, conditions and restrictions relating to the maintenance of the slope areas, signed and acknowledged by those parties having any record title to the land to be developed and which are enforceable by the city shall be recorded. The covenants, conditions and restrictions shall ensure that:
a. 
All improvements included within the slope areas, such as landscaping and irrigation, shall be maintained in a safe condition and a state of good repair.
b. 
Failure to maintain such improvements, located on slope areas, is unlawful and a public nuisance endangering the health, safety and general welfare of the public and a detriment to the surrounding community.
2. 
A landscape maintenance district established pursuant to the provisions of the Landscape and Lighting Act of 1972.
F. 
Grading Design Approach. The reshaping of the natural terrain to permit access and construction shall be kept to the absolute minimum. The improvements should be designed to conform to the terrain. Where grading is necessary, the following guidelines shall apply to Type B and Type C lots:
1. 
Transition Design. The angle of the grading slope shall be gradually adjusted to the angle of the natural terrain.
2. 
Angular Forms. Angular forms shall not be permitted. The graded form shall reflect the natural rounded terrain.
3. 
Exposed Sloped. Graded slopes shall be concealed wherever possible.
(Ord. 1137, Exh. A, 2003)
A. 
No building or structure shall exceed two stories, as defined by the Uniform Building Code, or thirty-five feet in height.
1. 
Habitable attic area does not constitute an additional story; however, in no case shall the improvement of an attic area increase the maximum height permitted in this section. Attic space may be improved as habitable space when the total habitable area does not exceed forty percent of the story below it, when it meets all Building Code requirements and when approved in accordance with Chapter 18.12 of this title.
B. 
The following lots, to the maximum extent possible, should be designed to the low profile performance standards described in Exhibit H. These lots shall be specifically approved by the development plan review board:
1. 
Lots 4-19, 22-27, 29-32, 58, 68-73 Tract No. 34857; and
C. 
For Lots 29, 30, 31 and 32 of Tract No. 34857, the height of the building shall be limited to the contour elevation as listed in this subsection:
1. 
Lot 29—seven hundred five maximum structure elevation at ridge of house;
2. 
Lot 30—seven hundred three maximum structure elevation at ridge of house;
3. 
Lot 31—six hundred ninety-six maximum structure elevation at ridge of house;
4. 
Lot 32—seven hundred ten maximum structure elevation at ridge of house.
(Ord. 1137, Exh. A, 2003)
A. 
Two-bedroom dwellings shall have a minimum floor area of one thousand four hundred square feet.
B. 
Three-bedroom dwellings shall have a minimum floor area of one thousand six hundred square feet.
C. 
An additional one hundred fifty square feet shall be required for each bedroom in excess of three.
(Ord. 1137, Exh. A, 2003)
A. 
Front Yard Setback. Front yard setbacks shall vary according to topographic conditions and shall be approved by the final decision-making body as outlined in Chapter 18.12 (Development Review).
B. 
Side Yard Setbacks. The minimum required side yards shall be five and twelve feet, with the twelve-foot side yard being provided on the garage side of the lot. On corner lots, the side yard adjacent to the street shall be ten feet.
C. 
Setback for accessory structures shall be as provided for the main building except where otherwise provided by a conditional use permit.
D. 
Rear Setbacks. For lots on the north side on Edinburgh Road and the south side of Gainsborough Road (Lots 58-73), the rear setback to habitable structures shall be twenty-five feet and the rear setback to non-habitable accessory structures (e.g. swimming pools, patio covers, sheds, etc.) shall be ten feet. All existing permitted structures that do not meet these rear setback standards shall be determined legal non-conforming and may remain unless removed or destroyed. Rear setbacks for all other properties shall be determined and approved by the final decision-making body as outlined in Chapter 18.12 (Development Review).
(Ord. 1137, Exh. A, 2003)
A. 
A minimum of two off-street parking spaces shall be provided for each dwelling unit. These spaces shall be located within a fully enclosed garage.
B. 
Driveways and drives shall be designed to a grade and alignment that will provide the maximum safety and convenience for vehicular, emergency and pedestrian use and in a manner that will not interfere with drainage or public use of the sidewalks or street area. Driveways should be located and designed to minimize disturbance to natural terrain. Driveways shall have a minimum width of sixteen feet, unless modified to preserve natural terrain, as approved by the development plan review board.
(Ord. 1137, Exh. A, 2003)
A. 
Walkways. Walkways of four feet minimum shall be provided along or in the proximity of public streets. The exact location of walkways and the material of walkways shall be determined by the director of public works.
B. 
Equestrian Trails. Equestrian trails shall be provided where indicated on Exhibit B. They shall be constructed of decomposed granite or other city-approved material. The width shall be a minimum of twelve feet, unless modified by the development plan review board.
(Ord. 1137, Exh. A, 2003)
The design of storm drain facilities shall ensure the acceptance of disposal of storm runoff without damage to the street or to adjacent properties. The use of special structures to accept storm runoff shall be incorporated into the street design where appropriate.
(Ord. 1137, Exh. A, 2003)
A. 
Design Concepts. The general landscape design concept is to maintain the natural scenic amenity represented by the existing natural vegetation. Introduced plant materials and landscaping improvements shall harmonize with the natural character of the site. The following landscape concepts refer to areas indicated in Exhibits B and C of this chapter.
B. 
Landscaping on Type A Lots. Conventional landscaping is permitted providing it does not distract from the overall natural community appearance.
C. 
Landscaping on the Residential Development Portion of Type B and Type C Lots and All Lots in Tract 47310. Landscaping shall be designed to blend with the existing native vegetation in the Walnut Creek corridor. Informal patterns of native materials shall be used. Formal patterns, unnatural appearing shapes or assertive colors shall not be permitted.
D. 
Landscaping in the Scenic Easement and Equestrian Areas. To the maximum extent possible, these areas shall remain in their natural state with no removal of vegetation. Native and native compatible vegetation may be planted and temporary irrigation installed, with approval of plans by the development plan review board. No planting other than native and native compatible vegetation is permitted in these areas. In the scenic easement area, temporary irrigation shall only be permitted when above ground irrigation piping is used. All irrigation systems installed in the scenic easement and equestrian areas shall be required to have moisture sensors installed to reduce overwatering.
E. 
Landscape Design Standards. All landscaping within Specific Plan No. 4 shall comply with the following design standards:
1. 
Landscape Plan. Prior to the issuance of any building permits, a conceptual landscape and irrigation plan for all developer-installed landscape areas shall be approved by the development plan review board. For each phase, a corresponding final landscape and irrigation plan shall be approved by the development plan review board. The landscape and irrigation plan shall clearly indicate the general location, size and species of plant material and the proposed irrigation of the area.
2. 
Plant Material List. Unless specifically approved by the development plan review board, all landscape material shall be compatible with the Landscape Planting Guidelines for Specific Plan No. 4 that is on file in the community development department.
3. 
Landscape Installation. All cut and fill slopes in excess of five feet in vertical height shall be planted and irrigated to promote growth of plants and to prevent erosion. In developing a site, the developer shall plant and maintain all slopes until the property is occupied by reason of lease or purchase. The developer shall provide suitable guarantee, satisfactory to the city council for planting and maintenance as provided in this chapter. All manufactured slopes, other than those constructed in rock, shall be planted or otherwise protected from the effects of storm runoff erosion and shall be benched or terraced as required to provide for adequate stability. Planting shall be designed to blend the slope with the surrounding terrain and development. Manufactured slopes in rock shall be provided with soil pockets to contain landscaping where appropriate. Irrigation facilities shall be required where necessary to provide for property maintenance of the planted areas.
4. 
Landscape Maintenance. To ensure maintenance of plant materials, an automatic irrigation system shall be provided. Irrigation systems shall be designed to provide uniform coverage and maximum water efficiency.
(Ord. 1137, Exh. A, 2003)
All signs within the Specific Plan No. 4 area shall comply with Chapter 18.156 of this title regarding signs in single-family residential zones.
(Ord. 1137, Exh. A, 2003)
A. 
All hillside public streets shall be provided with a level of street lighting designed to protect the health, safety and welfare of those living within the hillside areas. Streetlights shall be mounted on ornamental electroliers. Prior to the installation of any lighting or other developer-installed community lighting other than street lighting, a general lighting plan shall be approved by the development plan review board.
B. 
Spot, flood or decorative lighting that intrudes into the Walnut Creek Wilderness Park shall not be permitted.
C. 
Security lighting may be permitted in the equestrian area when associated with an approved horse keeping facility and when the security lighting is approved by the director of community development.
D. 
Sports court and horse corral and arena lighting may be permitted in accordance with Section 18.504.080.
(Ord. 1137, Exh. A, 2003)
A. 
Prior to the issuance of any building permits, a conceptual fencing plan for the entire development described in this chapter shall be approved by the development plan review board. For each phase, a corresponding final fencing plan shall be approved by the development plan review board. The community fencing plan shall clearly indicate the location, height, type and materials and color selection for fencing along Valley Center Avenue and Lyman Avenue. In addition to the provisions of the fencing plan, the following standards shall apply:
1. 
Fences and walls within the front setback may not exceed forty-two inches in height.
2. 
The maximum height for any fence or similar structure shall be thirty inches within the triangular area formed by drawing a straight line between two points located on, and twenty-five feet distance from any intersection of two streets.
3. 
The maximum height for any residential fence shall be six feet. Exact location and style of fencing shall be as approved under the community fencing plan.
4. 
Corral fences shall be metal pipe construction, a minimum of five feet in height. The maximum height of corral fencing shall be six feet.
5. 
No fencing of any type is permitted in the scenic easement area, indicated on the concept plan, Exhibit C of this chapter, with the exception of equestrian "E" lots on which black tubular steel fencing six feet in height, or other approved fencing, may be approved with development plan review board approval.
6. 
The maximum height of fencing for recreational courts shall be eight feet in height on the sides of the court and ten feet in height on the ends of the court; however, the development plan review board may reduce the maximum allowed height of individual fences based on the impact of the proposed fence. Chain-link fencing is not permitted unless it is vinyl dipped in a color compatible with the surrounding landscape.
(Ord. 1137, Exh. A, 2003)
A. 
All development plans shall show a patio or deck area on each hillside lot. Unless required as a condition of approval, a developer shall not be required, pursuant to this section, to install a patio or deck area.
B. 
Any person wishing to install a patio or deck area, shall do so in accordance with a development plan approved by the development plan review board, pursuant to Chapter 18.12 of this title.
(Ord. 1137, Exh. A, 2003)