Mobile Home and Manufactured Home Standards

Section 77A.   Purpose .   The purpose of Sections 77A, 77B, 77C, 77D, and 77E is to provide location and development standards for manufactured home development within the City of Hillsboro .   These standards are intended to provide a quality residential environment for residents of manufactured home developments and are also intended to ensure the compatibility of manufactured home development with adjacent property.   (Added by Ord. No. 3029/8-79; Amended by Ord. No. 3609/4-86 and Ord. No. 4213/3-94.)

Section 77B.   Applicability .   The standards contained in Sections 77C, 77D, and 77E shall apply to manufactured home development within the City of Hillsboro.   These standards are intended to supplement and implement federal and state statutes, rules, and regulations, and local ordinances governing manufactured homes and are not, in any way, to be construed as superseding or replacing said federal and state statutes, rules, and regulations.   Manufactured home development within the City shall comply with all applicable federal and state statutes, rules, and regulations and local ordinances.   If local ordinances should conflict with other applicable federal and state statutes, rules, and regulations, the stricter standard shall apply.   (Amended by Ord. No. 3609/4-86 and Ord. No. 4213/3-94.)

Section 77C.   Standards for Mobile Home Parks.  All manufactured home parks constructed after January 1, 1986 shall conform to the following standards:

(1) Location.  Manufactured Home Parks may be permitted in any residential zone subject to the minimum and maximum density standards of that zone except that no new manufactured home park shall be permitted which would allow placement of manufactured homes below the elevation of the base flood, as defined in Section 131(2)(b). (Added by Ord. No. 5523/6-05).

(2) Density.  Housing density for manufactured home parks shall not exceed the housing density normally allowed by the Comprehensive Plan.   For the purposes of this Section, density calculations shall include land proposed for dedication for public right-of-way by the Hillsboro Transportation Plan.

(3) Age.   All manufactured homes shall have been constructed after June 15, 1976 and shall bear an "Insignia of Compliance indicating compliance with the Federal Manufactured Home Construction and Safety Standards and bear a date of manufacture; except that manufactured homes relocated from another manufactured home park and constructed prior to June 15, 1976 shall not be excluded from placement in a manufactured home park.

(4) Minimum Dwelling Unit Size.   All manufactured homes shall exceed 800 square feet of gross floor area.

(5) Design Requirements.   All manufactured home parks shall be subject to the procedures and requirements of Section 133.   Development Review/Approval of Plans, excepting the requirement for submission of building elevations and floor plans, and shall be further subject to the following requirements:

a) Design Team.   All manufactured home parks shall be designed by a design team which shall include an architect or landscape architect, and a civil engineer, all licensed by the State of Oregon.

b) Minimum Lot Size/Minimum Frontage.  The minimum lot size shall be 8 one (1) acre s for a manufactured home park.   Said parcel shall have a minimum frontage of 100 feet on a public street.   (NOTE:   In 1997, the minimum lot size was reduced to one acre by State Law which supercedes the Zoning Ordinance minimum of eight (8) acres.)

c) Lot Coverage. The maximum lot coverage of structures shall not exceed 50% of the gross lot area.

d) Common Recreation Area.   A minimum of 5% of the site area of the manufactured home park shall be reserved for recreation facilities to be used in common by park residents.

e) Yard Requirements - Perimeter.   The minimum yard requirements for the perimeter of a manufactured home park shall be as follows:

1) Front Yard.   The minimum front yard shall be 30 feet.   Each yard abutting a public street shall be considered a front yard.

2) Other Yards.   All other yards shall be a minimum of 20 feet.

f) Yard Requirements - Interio.   The minimum yard and separation requirements for structures not within the perimeter yards of a manufactured home park shall be as follows:

1) Front Yard.   The minimum front yard for a manufactured home space shall be 10 feet from the edge of the curb or sidewalk closest to the manufactured home.

2) Structure Separation.   The minimum separation between structures shall be 10 feet.

g) Streets and Sidewalks.   All private streets within a manufactured home park shall conform to the following street width table:

1)  Street Construction.   All private streets shall have a crowned profile and shall be constructed of asphaltic concrete or Portland Cement.

 

2) Curbs.   All private streets shall be bordered by a continuous concrete curb with a minimum height of 2 inches above the street surface.   Curbs shall be a minimum of 6 inches wide.

 

3)  Sidewalks.   All private streets shall have a sidewalk on one side of the street, excepting streets 36 feet wide which shall have a sidewalk on both sides of the street.   All sidewalks shall have a minimum width of 3 feet.   Mailboxes, light poles, or other obstructions shall be located on a sidewalk in a manner that provides an unobstructed sidewalk of 3 feet.

 

4) Street Names & Addresses.   All private street names and manufactured home addresses within a manufactured home park shall conform to the City of Hillsboro street name and address grid as provided by City Ordinance.   Street identification signs shall be standard City street signs unless other similar street identification signs are approved pursuant the procedures and requirements of Section 133.   Development Review/Approval of Plans.   Street identification signs shall be installed prior to the placement of any manufactured-home in the park and shall be maintained by the park owner.

 

h) Utilities.

 

1) Plans.   All plans for water, sanitary sewer and storm drainage lines shall be approved by the City Engineer.

 

2) Storm Drainage.   All storm water shall be collected on the site in a piped storm drainage system, unless otherwise approved by the City Engineer.   Underground service connections shall be made from each manufactured home to the street gutter.   Storm water from the manufactured home park shall be piped to a public storm drain line, if available.   If a public storm drain line is not available, then the developer may be required to construct an off-site storm drainage system acceptable to the City Engineer.

 

3) Electricity, Telephone & Television Cable.   All electrical, telephone and television cable lines shall be located underground.

 

i) Parking.  Off-street parking spaces shall be required as follows:   two spaces per dwelling unit plus one space for each five dwelling units for guest parking.   Allowable on-street parking may be counted as guest parking.   The two parking spaces required for each dwelling unit may be provided end to end.   All driveways for individual manufactured homes and off-street parking areas shall be paved with asphaltic concrete or Portland Cement.   No parking shall occur in a perimeter yard.   Parking shall be allowed on private streets only in accordance with the following table:

j) Recreational Vehicles.   Storage areas for vehicles, including motor homes, recreation trailers, boats, boat trailers or other similar vehicles or equipment shall not be located within 100 feet of the perimeter lot lines of a manufactured home park site.   Recreation vehicle storage areas shall have a 10 foot yard between the storage area and the nearest structure.   Said storage areas shall be screened from the view of adjacent structures by a sight-obscuring fence and landscaping.

 

k) Landscaping.  All land within a manufactured home park not paved or containing a structure shall be landscaped with grass, trees, shrubs or flowers in a manner that will enhance the residential character of the manufactured home park and surrounding neighborhood.   All landscaping shall be maintained, said maintenance to include regular irrigation, mowing, removal of weeds and trimming and pruning as necessary.

 

l) Fencing.  All yards, excepting the front yard, shall have a continuous permanently maintained perimeter fence separating the manufactured home park from the adjacent property.   Said fence shall have a minimum height of four feet and a maximum height of six feet.

 

m) Manufactured Home Design.  All manufactured homes within a manufactured home park shall conform to the following design standards:

 

1) Removal of Towing Equipment.   All towing hitches, wheels, running lights and other towing related equipment shall be removed within 30 days after installation of the manufactured home.

 

2) Foundations.   All manufactured home foundations shall conform to the construction specification of Oregon Administrative Rules, Chapter 814.

 

3) Exterior Design.  All manufactured homes shall have vinyl, wood or aluminum lap siding or pretreated simulated wood siding and composition shingle roofing.   Roof slope shall have a minimum 2:12 pitch with a minimum six inch overhang.   All roof areas shall have gutters with runoff draining through piped connections to the adjacent street gutter or to the manufactured home park storm drainage system.   Manufactured homes and manufactured home decks shall be skirted with vinyl, wood or aluminum lap siding, pretreated simulated wood siding or masonry to blend with the color and texture of the manufactured home exterior.   Skirting shall be installed within 30 days of setup.

 

4) Awnings Decks & Carports.  All manufactured homes shall have a deck or patio having a minimum size of 120 square feet and a covered carport having a minimum size of 120 square feet.   All awnings, decks, and carports shall be designed and painted or finished to blend with the exterior colors of the manufactured home.

 

5) Storage Sheds.   One storage shall be allowed for each manufactured home.   Storage sheds shall not exceed 200 square feet of floor area and shall be located adjacent to and designed as an integral part of the manufactured home, deck, or carport.   If required, the storage shed shall conform to the structural requirements of the State of Oregon Structural Specialty Code or other applicable codes.   The storage shed shall be painted or otherwise finished to match the exterior color of the manufactured home.

 

6)  Antennas.  Satellite signal receiving antennas greater than three feet in diameter shall not be allowed unless such antenna is used to serve a centralized television signal distribution system in the manufactured home park.   Home television antennas and any satellite receiving antennas less than three feet in diameter shall be installed at the rear of the manufactured home to a height not to exceed five feet above the roof peak.   No antennas shall be located in a perimeter yard.

 

(Section 77C. Added by Ord. No. 3609/4-86; Amended by Ord. No. 4213/3-94 and by Ord. No. 5523/6-05.)

Section 77D .   (Deleted by Ord. No. 4213/3-94.)

Section 77E.   Placement Standards for Manufactured Homes Outside of Manufactured Home Parks.   A manufactured home placed on a lot outside of a manufactured home park shall conform to the following standards:

 

a. Prohibited in the 100-Year Floodplain unless placement of the manufactured home conforms to the regulations in Section 131(7)(d) Regulatory Floodplain District. (Added by Ord. No. 5523/6-05).

 

b. The manufactured home shall be multisectional and enclose a space of not less than 1,000 square feet.

 

c. The manufactured home shall be placed on an excavated and back-filled foundation and enclosed at the perimeter such that the manufactured home is located not more than 12 inches above grade.   Where a building site has a sloped grade, the manufactured home is not more than 12 inches above grade on the uphill side.

 

d. The manufactured home shall have a pitched roof with a minimum slope of three feet in height for each 12 feet in width.  

 

e. The manufactured home shall have exterior siding and roofing which in color, material and appearance is similar to the exterior siding and roofing material commonly used on residential dwellings within the community or which is comparable to the predominant materials used on the surrounding dwellings as determined by the Planning Director.

 

f. The manufactured home shall be certified by the manufacturer to have an exterior thermal envelope meeting performance standards which provide heat loss levels equivalent to the performance standards required of single family dwellings constructed under the state building code as defined in ORS 455.010.

 

g. The manufactured home shall have a garage or carport constructed of like materials.

 

h. The property on which the manufactured home is to be placed is not within the boundaries of a designated historic district or adjacent to a site identified on the City's Cultural Resource Inventory.

(Section 77E. Added by Ord. No. 3609/4-86; Amended by Ord. No. 4213/3-94 and by Ord. No. 5523/6-05).