Manufactured Homes/Factory-Built Buildings

Payment Information

Mohave County Development Services accepts all forms of payment: cash, check, cashiers check, or money order. Credit cards are now accepted. (transaction fees apply)

• Information Needed on a Plot Plan
• Site Plan Requirements (Section 27.P) 

APPROVED SEPTIC SYSTEM REQUIRED FOR ALL PROJECTS WITH PLUMBING

Commercial/Residential Factory-Built Buildings

Manufactured Home and FBB Permit Fees

Fees are effective July 1, 2024 through June 30, 2025

Permit Fees

Inspection Fees

Please note that the State Department of Housing fees listed above are for the base ISA program only. They do not include the County’s other standard adopted fees for Zoning, Building and/or Automation that will be added as required to the fee amount listed above.

• Permit Submittal Checklist
• Installation Application

Residential Manufactured Homes

• Permit Submittal Checklist
• Installation Application

Additional Documents and Forms

• MH Inspection Requirements
• MH Utility Testing Report
• Penetrometer Soil Testing Report 

Manufactured Home Site Preparation Overview and Requirements

A properly prepared site is critical to a good quality manufactured home installation and the long term structural stability of the home. Inadequate soil bearing capacity or a support system mismatched to the soil characteristics can result in excessive or differential settlement of the home, which can cause the home to become unleveled, resulting in jammed doors and windows, cracks in finishes and ruptured plumbing connections. Final responsibility for the site preparation, including soil stability, lies with the installer of the home. An improperly prepared site may result in the dealer or manufacturer denial of a foundation-related warranty claim.

Clear and grade the location of the site where the home will be located. Remove organic material such as vegetation, wood, roots, twigs, dead branches, grass and brush from directly under the home. Remove any debris that could become termite infested from the site and surrounding area. Crown the site under and away from the home for the first ten feet with a minimum slope of ½ inch per foot. Where property lines, walls, slopes or physical conditions prohibit this slope, provide the site with drains, swales or grading to drain water away from the structure. Moisture under the home can result in structural damage to the floor system, foundation, anchoring system and other parts of the home. Failure to provide adequate slope/drainage can result in moisture-related problems such as mold, mildew and erosion. 

Determine the soil conditions by examining the soil type under the proposed home location to make sure it is suitable for placement of a home. The design of the home’s support system, including footing/pier spacing and size, will be in part determined by the bearing capacity of the soil and the soil’s withdrawal strength for the required ground anchors. Use one or more of the following methods to determine the site’s soil bearing capacity:

• Hire a Registered Engineer, Geologist or Architect to determine the soil classification and maximum allowable soil bearing capacity by testing the soil in accordance with generally accepted engineering practices. Provide soils report at the time of permit application.
• Conduct a Pocket Penetrometer test to estimate allowable soil bearing capacity as follows:
  • Select seven test areas around the perimeter of the proposed manufactured home location near the proposed footer locations.
  • Clear a minimum area of one square foot to the required footer depth near each of the proposed footer test locations.
  • Using the instructions provided with the Pocket Penetrometer, take seven accurate location readings.
  • Disregard the high and low test readings and then average the remaining readings.
  • Provide the Pocket Penetrometer test information on the required form at the time of permit application. If the Building Inspector finds a site soil condition issue on the first inspection a Stop Work order may be issued and an engineered soils report may be required.

Note: All support systems on soils with bearing capacities less than 1,000 psf must be designed by a Registered Engineer or Registered Architect.