This article of Specific Plan No. 21 contains a series of design
concepts, requirements and guidelines that will be used to guide subsequent
levels of planning and design for individual development projects
within the specific plan area. These concepts and guidelines are intended
to promote a consistent character of streetscape development that
enhances the visual quality and aesthetic character of the project.
Variations to or modifications of these concepts and guidelines may
be granted subject to the approval of the city engineer, subject to
appeals according to the city standard appeal process.
(Ord. 871 § 1 (IV), 1987)
The following general guidelines are intended to promote a consistent
and careful treatment of street tree plantings and landscaping programs.
A. Unless
a formal design is recommended, street tree planting should generally
consist of random patterns. Interesting tree massings with random
spacings are encouraged to provide an undulating and varied streetscape,
with view "windows" created at selected points. In some cases, often
depending on adjacent architectural styles, a more formal "on-center"
spacing of single tree species may be more appropriate. Whether a
formal or informal design concept is used, the selected design concept
should be reflected along the entire length or substantial continuous
cement of the street.
B. Street
trees along arterial and collector roadways should be planted in mounded
areas of turf, ground cover, or shrubs. Mounded areas of turf should
not exceed a 3:1 slope condition.
C. Landscaping
should be intensified to emphasize entries, transitions and destinations.
Entry monuments should be enhanced with tree shrub and groundcover
plantings.
D. All
community-wide and common area landscape plantings shall be adequately
irrigated and maintained. Automatic irrigation systems should be utilized
to insure the continued growth of plant materials.
E. Landscaping
should be used to accentuate view windows into commercial office and
residential neighborhoods. Trees and shrubs can be planted to frame
or screen views selectively.
F. Vegetation
of varying heights, textures and colors should be used in conjunction
with walls and fences to define discreet boundaries.
G. Walls
and fences should be designed as an integral element of the streetscape
design concept, enhancing and complementing the landscaped setback
areas.
H. Primary
landscape elements should be "mature specimen, long-lived" trees with
perennial shrubs and/or groundcovers included where appropriate. Annual
flower beds can serve as attractive accent elements, particularly
at entry monument locations.
I. Landscape
elements should complement architectural design elements. Expansive
horizontal and vertical surfaces, comprised of singular materials,
should be modulated or interrupted by foliage masses.
J. Within
individual projects, trees should be used to define and enclose exterior
spaces intended for different activities.
K. Landscaping
and architectural features should be used to screen from view certain
visually undesirable elements such as parking, storage, loading, refuse
containers, utilities and irrigation controls.
(Ord. 871 § 1 (IV), 1987)
A. The
streetscape concept plan for the Lone Hill Business Park identifies
two streets which will receive special landscape treatments. Standards
for landscaping, screening and building setback requirements are illustrated
in Exhibits C1 through C5 for the following streets: Lone Hill Avenue
and Cienega Avenue.
B. In order to regulate the design of the building setback areas and to create a pattern of varying setbacks, a series of "setback zones" has been defined along each streetscape. These setback zones apply to each of the streets listed in subsection
A, as shown in the cross-sections on Exhibits C1 through C5. Regulations associated with each zone include the following:
1. Setback Zone A. This zone must be one hundred percent landscaping,
with sidewalks and entry drives also permitted where applicable. No
parking is permitted. Area A1 is within the public street right-of-way.
Area A2 is private land outside of the right-of-way.
2. Setback Zone B. This zone provides for an additional setback of twenty feet for buildings greater than twenty-two feet in height as measured from the centerline of Cienega Avenue at a point three hundred feet from Lone Hill Avenue to the top of the building parapet if such buildings are within six hundred feet of Lone Hill Avenue (see Maximum Building Height per Section
18.534.210) and is restricted to: one hundred percent landscaping; landscaping with limited parking; or landscaping with restricted encroachment of commercial buildings twenty-two feet or less in height as measured in this subsection.
C. To
achieve the desired streetscape appearance, the following special
standards shall apply to all streets in the specific plan area:
1. The minimum dimensions for setback zones A and B are shown on the
street cross-sections on Exhibits C1 through C5;
2. A minimum of five percent of the total area within Zone B must be
landscaped;
3. Building projections in Zone B (which must be no greater than twenty-two feet in height as measured in subsection
B) shall not exceed eighty percent of the lot street frontage.
D. Special
design features should be utilized to create particular design statements
at key street intersections and project entry points. The design statements
should be uniform in concept and utilize elements associated with
the streetscape along the adjacent street and the entries should be
vehicular oriented.
E. Transitional
plantings of trees and shrubs are recommended at the interfaces between
residential and office park land uses. As an example, entries into
office park areas might feature flowering canopy trees, with parking
lot edges mounded and planted to screen cars and trucks. Effective
landscape transition can give better definition to the office park/residential
edge.
F. Transitions
between neighborhoods and public uses should have a gradual transition
of tree types and tree scale. If developed in the plan, public use
areas should have their own landscape identity, but will be visually
connected by blending plant material with adjacent land uses.
G. Parking
lots for business park, commercial and office uses should be buffered
along the interior street using berms and tree and shrub plantings.
This planting should be designed to break up and partially screen
views of the parked cars. Trees should also be planted in curbed islands
within the parking area to break up large expanses of paving, filter
views, provide shade and reduce glare.
(Ord. 871 § 1 (IV), 1987)
A. A development plan review shall be required. No person shall construct any building or structure, or relocate, rebuild, alter, enlarge or modify any existing building or structure, until a development plan has been reviewed and approved in accordance with the provisions of Chapter
18.12.
B. Prior
to formal application to the development plan review board, the applicant
may request that the board review and approve a conceptual design
for the project. Application for conceptual design review shall be
accompanied by the following:
2. Conceptual architectural floor plans and elevations;
3. A preliminary grading plan;
4. A conceptual landscape plan;
5. Breakdown of land uses: i.e., parking (compact vs. regular), floor
area(s), coverage(s), landscape coverage, etc;
6. Written description of proposed uses.
C. Prior
to any submittal to the development plan review board, applicants
shall submit the above items to city staff for informal review and
comments regarding city development policies and standards. Such meetings
will serve to reduce expenditures of time and money through the development
process.
(Ord. 871 § 1 (IV), 1987)