The purpose of the manufactured homes and manufactured dwellings provisions is to establish criteria for the placement of manufactured home units on individual lots and manufactured dwellings in manufactured dwelling parks within the City of West Linn. (Ord. 1745 § 1 (Exh. A), 2023)

Manufactured homes placed on individual lots shall be subject to the following requirements in all of the zoning districts in which they are allowed:

A.    The unit shall satisfy the requirements for a manufactured home as defined in CDC 02.030.

B.    The unit shall be attached to a permanent foundation for which a building permit has been obtained.

C.    The unit, if built subsequent to 1975, shall carry a State insignia indicating compliance with the “Manufactured Housing Construction and Safety Standards Code.” Units built prior to 1976 shall carry the State insignia for such units reflecting compliance with applicable State standards.

D.    Any extension or attachment to the unit which is not part of the original factory manufactured home, including space intended for storage purposes, will require a building permit.

E.    Off-street parking shall be provided as required by CDC 46.090(A)(6).

F.    The unit shall not be sited on a lot adjacent to any structure listed as an historic landmark or adjacent to an historic district.

G.    The exterior thermal envelope shall meet performance standards equivalent to those required for single-family dwellings under the State Building Code. (Ord. 1298, 1991; Ord. 1308, 1991; Ord. 1635 § 20, 2014; Ord. 1745 § 1 (Exh. A), 2023)

A.    Manufactured dwelling parks are allowed under prescribed conditions in the R-5 and R-4.5 zoning districts.

B.    Manufactured dwelling parks are subject to the provisions of Chapter 55 CDC, Design Review, and ORS 446.

C.    Permitted dwellings. Permitted dwellings in a manufactured dwelling park include manufactured dwellings, as defined in Chapter 02 CDC and ORS 446.003, and prefabricated structures, as defined in Chapter 02 CDC and ORS 197.286.

D.    In addition to the standards of the zoning district in which the project is located and other standards of this code, a manufactured dwelling park proposal shall meet the following:

1.    Minimum area. A minimum of one acre shall be required for manufactured dwelling parks. Land area less than one acre may be added to an approved manufactured dwelling park when such land area is developed as a continuation of the approved manufactured dwelling park. Continuous development shall include integrated vehicle and pedestrian circulation.

2.    Density. The density of units in a manufactured dwelling park shall be subject to the density requirements of the zoning district.

3.    Space coverage. The maximum lot coverage per manufactured dwelling space shall be 60 percent. The manufactured dwelling space shall be exclusive of space provided for the common use of tenants, such as roadway, structures, guest parking, walkways, and areas for recreation purposes.

4.    Separations and setbacks. Building separations and setbacks from the park boundary for manufactured dwellings, accessory structures, and buildings shall conform to the following:

a.    A manufactured dwelling shall not be located closer than 15 feet to any other manufactured dwelling, or closer than 10 feet to a building.

b.    All structures shall be set back a minimum of 20 feet from all park boundaries. Side and rear lines of a manufactured dwelling space shall be determined with relation to a park street and the same as side and rear lot lines are determined with relation to a public street as provided in a zoning code.

c.    Accessory structures shall meet the standards of Chapter 34 CDC.

d.    Awnings and carports may be attached to the manufactured dwelling and extend to within two feet of the manufactured dwelling space line. A double carport or garage may extend across the space line to serve two adjacent manufactured dwellings.

e.    Manufactured dwellings shall be set back a minimum distance of eight feet from any adjacent sidewalk.

5.    Streets.

a.    Park streets shall be a minimum of 24 feet in width, curb to curb; provided, that if parking is to be allowed on either side of the street, the minimum width shall be increased by eight feet for each side of the street on which parking is to be allowed. Parking shall be parallel. The point of access to the street shall be at least 32 feet in width.

b.    Streets shall be paved with cement or asphaltic concrete, and designed and constructed to adequately support traffic loads and provide adequate drainage, consistent with the West Linn Public Works Design Standards and ORS 446.095.

c.    Each manufactured dwelling space within the park shall have direct access to a park street or to a public residential street. The driveway shall be an unobstructed area, not less than 10 feet in width, and shall be constructed of concrete or asphaltic concrete and well-drained, consistent with the West Linn Public Works Design Standards.

6.    Storm drainage. All spaces shall be provided with adequate storm drainage and connected to the storm drainage system. Where a public street is to be dedicated or improved by the applicant, such drainage systems shall be designed and constructed according to the West Linn Public Works Design Standards.

7.    Sewage disposal. All spaces shall be served by the sanitary sewer system of the City. Such sewer systems shall be designed and constructed according to the West Linn Public Works Design Standards.

8.    Water supply. All spaces shall be served by the water system of the City. Such water supply systems shall be designed and constructed according to the West Linn Public Works Design Standards.

9.    Utilities. All manufactured dwelling lots and spaces shall be provided with storm drainage, sanitary sewer, electricity, telephone, and potable water utility services with easements dedicated where necessary to provide such services. All such utilities shall be located underground. (Ord. 1291, 1990; Ord. 1745 § 1 (Exh. A), 2023; Ord. 1754 § 1 (Exh. A), 2024)