§9225.7 LAYERS — Ukiah Zoning Code

Certain improvements are allowed only in a specific layer as prescribed by Table 9: Development Standards for All Land Uses, and Table 17: Parking Design Standards. Figures 4A and 4B illustrate the layers based on building type (side yard, rear yard, or courtyard).

Figure 4A: Side Yard and Rear Yard Buildings – Corner Lot and Interior Lot

Figure 4B: Courtyard Building – Corner Lot and Interior Lot

Side Yard and Rear Yard Buildings 1st layer is located between the front lot line and the required setback line or facade line. 2nd layer is the first 20 feet behind the 1st layer. 3rd layer is the portion of the lot that is not the 1st or 2nd layer. Utility boxes, HVAC units, direct vent fireplaces and similar accessory site features in 3rd layer only. Trash facilities/recycling, outdoor storage yard in 3rd layer only. Open parking is allowed only in the 3rd layer. See Table 17: Parking Design Standards. Loading docks, services areas, and trash/recycling facilities prohibited on frontage(s). Drive-through lane prohibited on frontage(s). Courtyard Buildings 1st layer is located between the front lot line and the required setback line or facade line. 2nd layer is the first 20 feet behind the 1st layer. 3rd layer is the portion of the lot that is behind the 2nd layer and includes the courtyard. 4th layer is the portion of the lot that is not the 1st, 2nd, or 3rd layers. Utility boxes, HVAC units, direct vent fireplaces and similar accessory site features in 4th layer only. Trash facilities/recycling, outdoor storage yard in 4th layer only. Open parking is allowed only in the 4th layer. See Table 17: Parking Design Standards. Loading docks, service areas, and trash/recycling facilities prohibited on frontage(s). Drive-through lane prohibited on frontage(s).

Table 10: Landscaping Standards for All Developments

STANDARDS	ALL ZONES	MODIFICATION TO STANDARDS (1)

General Requirements
Dimensions	Minimum of 3 feet interior width for landscaped areas without trees. Minimum of 4 feet interior width for landscaped area with trees.	Minor Exception
Height	Shall comply with height limits for vision triangles.	Minor Exception (2)
Hydrozones	Plants with similar water requirements shall be grouped together.	Minor Exception
Irrigation	All landscaped areas shall be provided with an automatic irrigation system, except those areas landscaped with native plants not requiring irrigation.	Minor Exception
Plans	Landscaping plan is required.	None
Model Water Efficiency Landscape Ordinance (MWELO)	Landscaping and irrigation plans for development projects shall comply with the State of California Model Water Efficiency Landscape Ordinance. Landscaping and irrigation plans submitted as part of the development permit application shall demonstrate compliance with the most recently adopted version of the MWELO unless superseded by City ordinance.	None
Safety – Location/Size of Planting at Maturity	Shall not interfere with safe sight distances for vehicular, bicycle, or pedestrian traffic; conflict with overhead power lines; or block pedestrian or bicycle ways.	None

STANDARDS	ALL ZONES	MODIFICATION TO STANDARDS (1)
Species (3)	Species shall be selected based on their adaptability to climatic, geological and topographical conditions of the site. Native, drought tolerant species known to grow well in Ukiah’s climate are encouraged.	As allowed by Tables 21 – 26
Trees (4)(5)
Existing	Shall be retained and preserved as required in section 9229 of this code, Tree Preservation and Planting Requirements.	As allowed by Tables 18 and 19
Location	Shall not be planted under any eave, overhang, balcony, light standard, or other structure that mayinterfere with normalgrowth.	Minor Exception (2)
Root Barriers	Required for tree planters less than 10 feet in width or located less than 5 feet from a permanent structure.	Minor Exception (2)
Parking Lot Trees	See section 9229 of this code, Tree Preservation and Planting Requirements.	As allowed by Tables 24 and 25
Street Trees – Spacing	1 street tree every 30 feet of parcel frontage (5) See subsection9229.4E6 of this code.	None
Street Trees – Species, Additional Requirements	See section 9229 of this code, Tree Preservation and Planting Requirements.	As allowed by Tables 21 – 23
Groundcover and Shrubs
Groundcover	Minimum 1 gallon and appropriately spaced in accordance with size at maturity.	Minor Exception
Shrubs	Minimum 5 gallon and appropriately spaced in accordance with size at maturity.	Minor Exception
Turf	Is discouraged. Any turf area shall be kept to a minimum and used only where a practical need can be demonstrated as part of the landscaping plan.	Minor Exception
Crushed Rock, Pebbles, Stone, Similar Materials	Maximum of 15% of the total area to be landscaped.	Minor Exception
Planting Beds	Top dressed with a bark chip mulch or other approved alternative.	Minor Exception
Artificial or Synthetic Groundcover or Shrubs	Prohibited.	Major Exception
Irrigation
Design	To reduce water usage.	None
Plans	Conceptual irrigation plan is required as part of the landscaping plan.	None
Maintenance Requirements
Fertilizer	Only used on trees during planting. Shrubs may receive periodic fertilizer according to the recommendations of a landscaping professional.	None (6)
Irrigation	In workingconditions at all times.	None(6)
Litter	Removed from landscaped areas on a regular basis.	None (6)
Pruning (7)	All trees shall be properly pruned. Top cutting of trees is prohibited. All pruning shall follow industry best practices to ensure long-term health and vitality.	None (6)

		MODIFICATION
		TO
STANDARDS	ALL ZONES	STANDARDS (1)
Replacement –	Any landscaping that dies, fails to grow or is	None (6)
Tree, Shrub,	unhealthy due to pests, damage, disease,
Groundcover	vandalism, or other factors shall be replaced
	immediately.
	Replacement shall conform to the standards that
	govern the original planting, approved
	landscaping plan, or as approved by the Planning
	Director.
Stakes –	Ties and stakes to be inspected by the property	None (6)
Inspection	owner or their designated representative every 6
	months to ensure they do not constrict the trunks
	or damage the tree.
Stakes –	Ties and stakes to be removed by the property	None (6)
Removal	owner or their designated representative after 1 to
	3 years to ensure they do not damage the trunk of
	the tree or its overall growth.
Turf Areas	Mowed on a regular basis and kept green and	None (6)
	weed free at all times.
Watering	Regular slow deep watering when feasible,	None (6)
	fluctuating to provide more water in the summer
	and less water in the winter. (8)
Weed Killer	Shall not be used on or near trees.	None (6)

See section 9231 of this code, Administration and Procedures.
Modification to this standard requires review and approval of the Planning Department, Public Works Department, Fire Department and Electric Utility Department as applicable to the specific project.
See Tables 20 – 25 for specific species requirements for street trees, parking lots and riparian corridors.
Where the requirements of this table conflict with the requirements of section 9228 of this code, Parking Standards and Procedures, the requirements of section 9229 of this code shall control.
Where the requirements of this table conflict with the requirements of section 9229 of this code, Tree Preservation and Planting Requirements, the requirements of section 9229 of this code shall control.
Maintenance requirements are provided to ensure the long-term health and viability of landscaping and trees. No modification to maintenance requirements is allowed.
For information regarding proper pruning techniques, see the International Society of Arboriculture website, www.isa-arbor.com.
Turf areas are not required to be kept green during times of mandatory water conservation, water moratorium, or a declared water emergency.

(Ord. 1139, §2 (Exh. A, 6.070), adopted 2012)