Mobile Home vs. Manufactured Home – Does It Really Make a Difference?
Yes! The terms Manufactured Home, Mobile Home, and RV (Recreational Vehicle) may be used interchangeably, but they have distinct definitions and permitting requirements.
Key Differences:
✔ Manufactured Home – A single-family dwelling built after June 15, 1976, according to HUD Manufactured Home Construction and Safety Standards Act (a national building code).
✔ Mobile Home – A factory-built dwelling constructed before June 15, 1976, built to state codes in effect at the time. Requires a Fire Safety Certificate from the Washington State Department of Labor and Industries for placement or relocation.
✔ Park Model or Park Trailer – Classified as an RV, subject to different zoning and placement regulations.
✔ Modular Building – Factory-built housing, but not classified as a manufactured home. Permitted and inspected similarly to site-built homes.
📢 Be Careful Before You Buy!
✔ Check zoning restrictions – Some areas may not allow manufactured or mobile homes.
✔ Verify Land Use Requirements with the Planning Division.
✔ Obtain ALL required permits before placing the home to avoid code violations.
Separate Permits Required For:
- Landings over 30" from finished grade to deck top.
- Porches/Patios with a roof cover.
- Additions or Alterations to the home.
Modifications to Manufactured Homes require approval from the Washington State Department of Labor and Industries (L&I). Additions must be freestanding and not structurally attached to the home.
📌 Homeowner Requested Inspection (HRI) – Before purchasing a used home, consider requesting an HRI inspection to check for unapproved alterations.
Installing or Moving a Manufactured or Mobile Home
📋 Checklist of Required Approvals:
✔ Yakima County Planning Division – Land use review.
✔ Yakima County Transportation Division – Road approach and address.
✔ Yakima Health District – Septic system approval & well requirements (if applicable).
✔ Sewer Purveyor – Varies by location.
⏳ Processing Time for Permits:
Once an application is submitted with all required documents, processing takes several days. Additional department reviews may be required.
For further details, contact Yakima County Building & Fire Safety Division.