Chapter 15.07
LANDSCAPING REGULATIONS*
Sections:
15.07.010 Purpose.
15.07.020 Landscape plan approval.
15.07.030 Failure to complete required landscaping – Inspection.
15.07.040 General landscape requirements for all zones.
15.07.050 Types of landscaping.
15.07.060 Regulations for specific districts.
15.07.070 Maintenance of landscaping.
*Cross reference(s) – Street trees, Ch. 6.10; building codes, Ch. 14.01.
15.07.010 Purpose.
A. The provisions of this chapter are to provide minimum standards for landscaping in order to maintain and protect property values and enhance the general appearance of the city.
B. The planning manager shall have the authority to waive specific requirements or impose additional requirements in unique or special circumstances to ensure the fulfillment of the stated purpose of this chapter and to allow for flexibility and innovation of design. Special circumstances or unique conditions shall be reviewed with the planning manager prior to submittal of a landscape plan. Examples of special conditions might include:
1. Preservation of unique wildlife habitat.
2. Preservation of natural or native areas.
3. Compliance with special easements.
4. Renovation of existing landscaping.
5. Unique site uses.
(Ord. No. 3612, § 5, 8-6-02)
15.07.020 Landscape plan approval.
A. A building permit shall not be issued until the landscaping plan has been approved.
B. At the time of development plan review, the planning department shall review specific landscape requirements with the owner or his representative.
15.07.030 Failure to complete required landscaping – Inspection.
A. Failure to complete all of the required landscaping or any part of it within six (6) months of the building occupancy, issuance of the certificate of occupancy or the planning department final inspection shall constitute a zoning violation.
B. It shall be the responsibility of the project manager or business owner to contact the planning department upon completion of the landscaping work and request an inspection.
C. The planning department may inspect the landscaping upon request of the project manager or business owner or at any time after the six (6) month expiration date.
15.07.040 General landscape requirements for all zones.
A. All parking areas of over twenty thousand (20,000) square feet shall have a minimum of ten (10) percent of the parking area, maneuvering area, and loading space landscaped as a means to reduce the barren appearance of the lot and to reduce the amount of stormwater runoff. Perimeter landscaping, required adjacent to property lines, shall not be calculated as part of the ten (10) percent figure.
B. All ingress or egress easements which provide corridors to the subject lot, not adjacent to a public right-of-way, shall be considered the same as a public right-of-way. Landscape requirements for easement corridors shall be the same as those required adjacent to public rights-of-way.
C. All outside storage areas shall be screened by fencing and landscaping a minimum of five (5) feet in depth unless it is determined by development plan review that such screening is not necessary because stored materials are not visually obtrusive. The five (5) foot deep landscaped area can occur within the street right-of-way abutting the property line.
D. All portions of a lot not devoted to building, future building, parking, storage, or accessory uses shall be landscaped in a manner appropriate to the stated purpose of this chapter.
E. All required landscaping areas shall extend to the curbline or the street edge. A crushed rock path in lieu of landscaping shall be required where appropriate as determined by the planning department.
F. Required landscape areas which are inappropriate to landscape due to the existence of rail lines or other features shall be relocated, first, to another lot line, or second, to an equal-sized area in another portion of the lot, to be determined by the planning department upon review with the owner or developer.
G. Bark mulch, gravel, or other nonvegetative material shall only be used in conjunction with landscaping to assist vegetative growth and maintenance or to visually complement plant material. Nonvegetative material is not a substitute for plant material.
H. Required landscape areas shall be provided with adequate drainage.
I. Slopes shall not exceed a three (3) to one (1) ratio (width to height), in order to decrease erosion potential and assist in ease of maintenance.
J. The perimeter of all parking areas which abut residential zones or uses shall be landscaped to a minimum depth of three (3) feet with type II landscaping unless otherwise provided by this chapter. A six (6) foot high solid wood or equivalent fence is also required. Substitute fencing, including but not limited to chainlink fence with slats, may be approved by the planning director upon application of the developer and adjacent residential property owners when such fencing shall provide buffering consistent with the purpose and intent of this chapter. The term “adjacent residential property,” for purposes of this section, shall mean abutting property, and lots immediately adjacent to abutting property.
K. Landscaping shall not conflict with the safety of those using adjacent sidewalks or with traffic safety. Safety features of landscaping shall be discussed at the time of development plan review, if necessary.
L. Quantity, arrangement, and types of plants installed shall be appropriate to the size of the required landscape area and purpose of planting area as noted in KCC 15.07.050 pertaining to types of landscaping.
M. All trash containers shall be screened from abutting properties and streets by a one hundred (100) percent sight-obscuring fence or wall and appropriate landscaping.
N. Landscaping shall be placed outside of sight-obscuring or one hundred (100) percent sight-obscuring fences unless it is determined by the planning department that such arrangement would be detrimental to the stated purpose of this chapter.
O. All property abutting Highway 167 or Interstate 5 shall be landscaped to a minimum depth of ten (10) feet unless a larger area is required elsewhere in this chapter.
P. All property abutting East Valley Highway between South 180th Street on the north to the SR167 overpass on the south shall be landscaped to a minimum depth of fifteen (15) feet unless a larger area is required elsewhere in this chapter.
Q. The use of native and drought tolerant, low water use plants shall be incorporated into landscape design plans.
R. Landscape plans shall include where feasible a diversity of native plant species which promote native wildlife habitat.
S. When irrigation systems are incorporated into a landscaping area, the applicant shall prepare a water use and conservation plan for review and approval by the public works department.
T. Landscaping adjacent to required biofiltration systems may be considered part of any required landscaping areas, subject to approval by the planning director and the public works department. Landscaping shall not be permitted within the treatment area of a biofiltration system. The chosen vegetation shall not result in any disruption of bioswale functions at any time.
U. Landscaping buffers shall be required adjacent to any above ground stormwater facilities, as required in the city’s construction standards, subject to the approval of the public works department.
V. The configuration and plant species of landscape areas on a site shall be designed so as to not disrupt the functions of stormwater systems.
W. The perimeter of all stormwater detention ponds shall be landscaped to a minimum depth of ten (10) feet of type II landscaping. If perimeter fencing is required based on public works department standards, it shall be constructed of vinyl-coated chainlink or solid screen fencing. The fencing shall be located between the pond and the landscape area.
(Ord. No. 2786, § 5, 6-21-88; Ord. No. 3409, § 44, 7-7-98; Ord. No. 3830, § 18, 3-6-07)
15.07.050 Types of landscaping.
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Type I Solid Screen |
Type II Visual Screen |
Type III Visual Buffer |
Type IV Low Cover |
Type V Open Area |
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Purpose |
Type I landscaping is intended to provide a solid sight barrier to totally separate incompatible uses. |
Type II landscaping is intended to create a visual separation that is not necessarily one hundred (100) percent sight-obscuring between incompatible uses. |
Type III landscaping is intended to provide visual separation of uses from streets and main arterials and between compatible uses so as to soften the appearance of streets, parking lots, and building facades. |
Type IV landscaping is intended to provide visual relief where clear sight is desired or as a complement to larger, more predominant planting materials. |
Type V landscaping is primarily intended to visually interrupt large open spaces of parking areas. |
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Description |
Type I landscaping shall consist of evergreen trees or tall shrubs with a minimum height of six (6) feet at planting, which will provide a one hundred (100) percent sight-obscuring screen within two (2) years from the time of planting; or a combination of evergreen and deciduous trees and shrubs backed by one hundred (100) percent sight-obscuring fence. |
Type II landscaping shall be evergreen or a mixture of evergreen and deciduous trees with large shrubs and ground cover interspersed with the trees. A sight-obscuring fence will be required unless it is determined by development plan review that such a fence is not necessary. (See also A, B, and C below) |
Type III landscaping shall be evergreen and deciduous trees planted not more than thirty (30) feet on center interspersed with large shrubs and ground cover. Where used to separate parking from streets, plantings must create a visual barrier of at least forty-two (42) inches in height at time of planting and form a solid screen two (2) years after planting. (See also A, B, and C below) |
Type IV landscaping shall consist of a mixture of evergreen and deciduous shrubs and ground cover, to provide solid covering of the entire landscaping area within two (2) years of planting and to be held to a maximum height of three and one-half (3 1/2) feet (see definition of ground cover). |
Type V landscaping shall consist of trees planted with supporting shrubs or ground cover. Each landscape area shall be of sufficient size to promote and protect growth of plantings, with a one hundred (100) square foot minimum (see KCC 15.07.040(A)). (See also A and B below) |
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Additional requirements for types II, III, and V are as follows: (A) Evergreen trees shall be an average height of six (6) feet at planting. Deciduous trees shall be the following sizes based on their spacing: (1) One (1) inch caliper: Ten (10) feet on center. (2) Two (2) inch caliper: Twenty (20) feet on center. (3) Three (3) inch caliper: Thirty (30) feet on center. (4) Three and one-half (3 1/2) to five (5) inch caliper: Forty (40) feet on center. (B) Ground cover shall be of sufficient size and spacing to form a solid cover within two (2) years from the time of planting. (C) The plantings and fence must not violate the sight area safety requirements at street intersections. |
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(Ord. No. 3409, § 45, 7-7-98)
15.07.060 Regulations for specific districts.
Landscaping regulations for specific zoning districts are as follows:
A. Residential agricultural, SR-1. None.
B. Single-family residential, SR-3 through SR‑8. None.
C. Duplex multifamily residential, MR-D. None.
D. Low density multifamily residential, MR-G.
Multifamily residential townhouse, MR-T.
Medium density multifamily residential, MR-M.
High density multifamily residential, MR-H.
1. A minimum of ten (10) feet of landscaping shall be provided abutting a public right-of-way.
2. Open green area shall occupy no less than twenty-five (25) percent of the area of the lot.
3. The side and rear perimeters of properties shall be landscaped to a minimum depth of ten (10) feet.
4. A minimum of five (5) feet of foundation landscaping shall be placed along the perimeter of any multifamily structure. Foundation landscaping consists of shrubbery or some other combination of landscape materials that helps to reduce the visual bulk of structures and buffer dwelling units from light, glare, and other environmental intrusions.
E. Mobile home park combining district, MHP. Requirements shall be per the mobile home park code.
F. Community commercial, CC.
Commercial manufacturing, CM.
General commercial, GC.
Professional and office district, O.
1. The perimeter of property abutting a residential district shall be landscaped to a minimum depth of ten (10) feet.
2. A planting strip not less than five (5) feet in depth shall be provided along all property lines abutting public rights-of-way.
G. Downtown commercial, DC.
1. A minimum of three (3) feet of landscaping to screen off-street parking areas, placement of which shall be determined through the downtown design review process outlined in KCC 15.09.046.
2. Street trees in accordance with the official tree plan shall be planted.
H. Downtown commercial enterprise, DCE.
1. The perimeter of properties abutting a residential district shall be landscaped to a minimum depth of ten (10) feet.
2. A minimum of three (3) feet of landscaping to screen off-street parking areas, placement of which shall be determined through the downtown design review process outlined in KCC 15.09.046.
3. Street trees in accordance with the official tree plan shall be planted.
I. Industrial agricultural, MA (industrial uses) and Agricultural general district, AG.
Industrial park district, M1.
1. Front yard. The front twenty (20) feet shall be improved with appropriate permanently maintained landscaping.
2. Side yard. At least fifteen (15) feet of the side yard shall be landscaped as provided in subsection (I)(1) of this section.
J. Limited industrial district, M2.
1. Front yard. The front fifteen (15) feet shall be improved with appropriate permanently maintained landscaping.
2. Side yard. At least ten (10) feet of the side yard shall be landscaped as provided in subsection (J)(1) of this section.
K. General industrial district, M3.
1. Front yard. The front ten (10) feet shall be improved with appropriate permanently maintained landscaping.
2. Side yard. At least five (5) feet of the side yard shall be landscaped as provided in subsection (K)(1) of this section.
L. Gateway commercial district, GWC.
1. Additional landscaping requirements. Landscaping requirements shall include the following:
a. Where buildings abut the required front yard, a landscape strip at least fifteen (15) feet in depth shall be provided. Where vehicular parking areas abut the required front yard, a landscape strip at least twenty (20) feet in depth, with an earth berm at least thirty-six (36) inches in height, shall be provided.
b. A landscape strip at least five (5) feet in depth shall be provided along the side property lines of all independent development sites. No landscaping along the side property lines shall be required between adjacent properties where a common, shared driveway with a perpetual cross-access easement is provided to serve the adjoining properties. Where the side property line of a commercial use abuts a residential district, a landscape strip at least ten (10) feet in depth shall be provided.
c. A landscape strip of at least fifteen (15) feet in depth shall be provided along side property lines flanking the street of a corner lot. Where vehicular parking areas abut the required side yard, an earth berm at least twenty-four (24) inches in height shall be provided.
d. A landscape strip of at least five (5) feet in depth shall be provided along all rear property lines. Where the rear property line of a commercial use abuts a residential use, a landscape strip of at least ten (10) feet in depth shall be provided.
M. Neighborhood convenience commercial, NCC.
1. Additional landscaping requirements. Landscaping requirements shall include the following:
a. A landscape strip of at least ten (10) feet in depth shall be provided in the front yard. If a drive or parking aisle abuts the front yard, the required landscaping shall be augmented by an earth berm of at least thirty-six (36) inches in height.
b. A landscape strip of at least five (5) feet in depth shall be provided along the side property lines of all independent development sites. No landscaping along the side property lines shall be required between adjacent properties where a common, shared driveway with a perpetual cross-access easement is provided to serve the adjoining properties. Where the side property line of a commercial use abuts a residential district or use, a landscape strip of at least ten (10) feet in depth shall be provided.
c. A landscape strip of at least ten (10) feet in depth shall be provided along side property lines flanking the street of a corner lot. Where vehicular drive aisles or parking areas abut the required side yard, an earth berm of at least twenty-four (24) inches in height shall be provided.
d. A landscape strip of at least five (5) feet in depth shall be provided along all rear property lines. Where the rear property line of a commercial use abuts a residential district or use, a landscape strip of at least ten (10) feet in depth shall be provided.
(Ord. No. 3050, §§ 8, 9, 7-7-92; Ord. No. 3409, § 46, 7-7-98; Ord. No. 3439, § 5, 2-2-99; Ord. No. 3470, § 13, 8-17-99; Ord. No. 3543, § 11, 2-20-01; Ord. No. 3612, § 6, 8-6-02; Ord. No. 3648, § 8, 7-1-03; Ord. No. 3770, § 13, 11-15-05)
15.07.070 Maintenance of landscaping.
A. Required. Whenever landscaping is or has been required in accordance with the provisions of this title or any addition or amendments to this title, or in accordance with the provisions of any previous code or ordinance of the city, the landscaping shall be permanently maintained in such a manner as to accomplish the purpose for which it was initially required.
B. Notice of violation. The planning manager or his or her designee is hereby authorized and empowered to notify the owner of any property required to be landscaped, or the agent, tenant, lessee, or assignee of any such owner, that the landscaping is not being adequately maintained and the specific nature of such failure to maintain. The notice shall specify the date by which the maintenance must be accomplished, and shall be sent by certified mail, addressed to the owner at his last known address.
C. Action upon noncompliance.
1. Upon the failure, neglect, or refusal of any owner or agent so notified to perform the required maintenance within the time specified in the written notice, or within fifteen (15) days after the date of such notice if the notice is returned to the city by the post office department because of inability to make delivery thereof, provided the notice was properly addressed to the last known address of the owner or agent, the planning manager or his or her designee is hereby authorized and empowered to cause the required maintenance to be done and provide for payment of the cost thereof, with the cost to be collected or taxed against the property affected as provided in this section.
2. Nothing in this section shall prevent the planning manager or his or her designee from taking action as provided in KCC 15.09.090.
D. Charge for maintenance by city to be included in tax bill. When the city has performed landscape maintenance or has paid for such maintenance, the actual cost thereof, plus accrued interest at the rate of eight (8) percent per annum from the date of the completion of work, if not paid by such owner prior thereto, may be charged to the owner of such property on the next regular tax bill forwarded to such owner by the city, and if so charged shall be due and payable by the owner at the time of payment of such bill.
E. Lien for payment of charges. If the full amount due the city is not paid by such owner within thirty (30) days after performance of the maintenance as provided for in subsection (C) of this section, then, in that case, the planning manager or his or her designee may cause to be recorded in the office of the supervisor of treasury accounting a sworn statement showing the cost and expense incurred for the work, the date the work was done, and the legal description of the property on which the work was done. The recording of such sworn statement shall constitute a lien and privilege on the property, and shall remain in full force and effect for the amount due in principal and interest, plus court costs if any, until final payment has been made. The costs and expenses shall be collected in the manner fixed by law for the collection of taxes and further shall be subject to a delinquent penalty of eight (8) percent per annum if the costs and expenses are not paid in full on or before the date the tax bill upon which the charge appears become delinquent. Sworn statements recorded in accordance with the provisions of this subsection shall be prima facie evidence that all legal formalities have been complied with and that the work has been done properly and satisfactorily, and shall be full notice to every person concerned that the amount of the statement plus interest constitutes a charge against the property designated or described in the statement and that the charge is due and collectible as provided by law.
F. Alternative methods of collection of charges. In addition to or in lieu of the provisions of subsections (D) and (E) of this section, the city may, at its option and pursuant to Chapter 19.16 RCW, use a collection agency to collect unpaid charges, interest, and penalties owed or assessed pursuant to this chapter, or the city may seek collection by court proceedings, which remedies shall be in addition to all other remedies.
(Ord. No. 3658, § 4, 9-2-03)