Buffers are intended to lessen the impacts between uses which are incompatible or somewhat incompatible. The required buffer yard plantings take the place of the required landscaping plantings within a buffer yard. The buffer yard plantings are subject to the same requirements and review as the landscaping requirements.
In order to determine the required buffer yard, if any, please follow the instructions in this section. If a buffer yard is required, refer to Table D for specific buffer yard requirements.
A. Buffer Requirements Between Zoning Districts. In order to determine the appropriate buffer requirement between zoning districts, see adjacent zoning district buffer requirements in Table A or the text in this subsection. After determining the applicable buffer yard type, use Table D to determine the associated buffer yard elements.
1. Commercial/Business Park District to Residential District. If a commercial or business park zoning district is adjacent to a residential zoning district, then a minimum of a buffer yard C is required.
2. Industrial District to Residential District. If an industrial zoning district is adjacent to a residential zoning district, then a buffer yard E is required.
3. Industrial District to Commercial District. If an industrial zoning district is adjacent to a commercial zoning district, then a minimum of a buffer yard C is required.
B. Land Use Buffer Requirements within a Zoning District. In order to determine the appropriate buffer requirement within a zoning district, the intensity of abutting land uses shall be determined using Table E. Table B or C is then used to determine the applicable buffer yard type based on the intensity of land uses. After determining the applicable buffer yard type, use Table D to determine the associated buffer yard elements.
1. Within a Residential District. Within a residential zoning district, use Table B to determine the buffer yard requirement between two adjacent uses.
2. Within a Commercial, Business Park or Industrial District. Within a commercial, business park or industrial district, use Table C to determine the buffer yard requirement between two adjacent uses.
C. Buffer Yard Exemptions.
1. Residential/Business Park/Commercial District. A buffer yard within a residential, commercial or business park zoning district shall not be required when there is an intervening feature such as a public street, a railroad, a river, a major topographic variation or other similar feature between two uses.
2. Industrial District. A buffer yard within an industrial zoning district shall not be required when there is an intervening feature such as a freeway, a railroad, a river, a major topographic variation, or other similar feature between two uses.
D. Buffer Yard Tables.
Table A: Minimum Buffer Yard Requirements Between Zoning Districts |
|---|
Zoning District | Adjacent Zoning District |
|---|
Residential | Commercial |
|---|
Business Park/Commercial | C | N/A |
Industrial | E | C |
Table B: Minimum Residential District Land Use Buffer Yard Requirements |
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Proposed Land Use Intensity | Adjacent Existing Land Use Intensity |
|---|
I | II | III | IV |
|---|
II | A | NONE | NONE | NONE |
III | C | NONE | NONE | NONE |
IV | D | C | NONE | NONE |
Table C: Minimum Commercial/Business Park/Industrial District Land Use Buffer Yard Requirements |
|---|
Proposed Land Use Intensity | Adjacent Existing Land Use Classification |
|---|
I | II | III | IV |
|---|
II | A | NONE | NONE | NONE |
III | C | NONE | NONE | NONE |
IV | C | B | NONE | NONE |
V | C | C | C | C |
Table D: Minimum Buffer Yard Standards |
|---|
| A | B | C | D | E |
|---|
Width | 10′ | 15′ | 20′ | 35′ | 50′ |
Structure required | None | None | F2 | B2 & F4 | B5 & F6 or BW1 |
Plant units per 100 linear feet of buffer yard: |
Deciduous trees, 2″ caliper, 6′ min. height | 4 or | 5 or | 5 | 8 | 12 |
Evergreen trees, 6′ min. height | 8 | 10 | 6 | 9 | 13 |
Evergreen or evergreen/deciduous tree row* along berm or fence | N/A | YES | YES | YES | YES |
Shrubs, minimum 5 gallons | 20 | 25 | 25 | 32 | 40 |
Groundcover | Yes | Yes | Yes | Yes | Yes |
Note: Caliper and centers may be altered by the director based on tree type. |
*Trees for required row may count toward evergreen/deciduous tree requirement above. |
Table E: Land Use Intensity Classification Chart |
|---|
Land Use Intensity I | Land Use Intensity IV |
• Duplex dwelling | • Bakery, wholesale |
• Single-family dwelling | • Commercial livestock |
| • Entertainment, outdoor |
Land Use Intensity II | • Gasoline station |
| • Hospital |
• Library, museum, gallery | • Kennel |
• Low-intensity retail and services | • Lumber yard |
• Mini-storage | • Multifamily structure containing 9 or more units |
• Multifamily structure containing 3 or 4 dwelling units | • Recreational vehicle park |
• Office building ≤ 3,000 square feet | • Restaurant with drive-thru |
• Park | • Sales, outdoor |
• Religious institution | • Shopping center |
| • Supermarket |
Land Use Intensity III | Land Use Intensity V |
• Agricultural crops | • Airport |
• Entertainment, indoor | • Auction, outdoor |
• General retail and services | • Correctional facility |
• Hotel | • Distribution facility |
• Manufactured home park | • Hazardous waste, off-site facility |
• Mixed use | • Impound yard, motor vehicle |
• Multifamily structures, containing between 5 and 8 dwelling units | • Industrial, including flex-retail |
• Office building > 3,000 square feet | • Manufacturing |
• Police station/court | • Ocean cargo container storage yard |
• School | • Recycling, collection and/or processing facility |
• Vehicle repair shop | • Regional transit center |
| • Sale of products manufactured on-site |
| • Solid waste handling facility |
| • Storage yard, general |
| • Tire (re)manufacturing |
| • Truck transfer facility |
| • Towing facility |
| • Warehousing facility |
The director shall determine the land use intensity classification for uses not listed above. |
(Ord. 1317 § 3, 1998; Ord. 1404 § 2(Exh. C § 11), 2000; Ord. 1481-03 § 1, 2003)