Manufactured and Mobile Homes

Application Checklist
This checklist provides the list of individual documents that are required for a complete application for residential projects. 

Building Permit Application
This form is required for all residential building projects along with specific site and project data. 

Site Plan
Draw site plan to scale, not less than 1-inch=100-feet, show all property corners, existing and proposed structures, adjacent roads, all storage tank locations, all easements, utility locations, and north arrow. The site plan may incorporate the erosion, pollution, and stormwater control requirements of a site development permit. This combined plan is sometimes referred to as an abbreviated plan or stormwater site plan.

Construction Drawing - Alterations & Additions
The Washington State Department of Labor and Industries must approve all structural alterations prior to County review. 

Proof of Ownership
A contract or bill of sale/Title with make, model number, serial number, and size is required before an application can be accepted for the placement of a manufactured or mobile home.

Site Development Permit
Placement of a modular home on a lot that has never been built on before will require a Site Development Permit. Replacing an existing modular home does not typically require a Site Development Permit. The purpose of this permit is to assure that the applicant controls erosion, pollution, and stormwater runoff during and after construction. County engineering staff review site development permit applications for conformance with the County's regulations. County inspection staff inspect during construction for proper implementation. The permit application fee covers the cost of review and inspection. 

Driveway Approach Permit
A Driveway Approach Permit is required for: a new driveway approach that connects to a public road, an existing driveway approach that was never permitted or built to County standards, and to modify or rebuild an existing driveway approach. View 17B.10.101 Driveway Approach Required Permit. 

Emergency Vehicle Access
Clearly identify emergency vehicle access on the site plan. Requirements: 15' wide when serving one home; 18' wide when serving more than one home. Pierce County Code Table 17C.60.150-1 calls out EVA width. 

Fire Flow / Water Availability
If lot size is less than an acre in size, the water purveyor must sign a certificate of water availability.

Fire Flow Credit Checklist (over 5,000 square feet)
Fire Flow Credit Checklist (under 5,000 square feet)
If lot size is one acre or more, or there is no fire flow available, submit a Fire Flow Credit Checklist to show how 100% credits will be achieved. 

On-Site Water (Well) Application
Water source approval includes drilling and testing of wells. Submit application to the Tacoma Pierce County Health Department for well construction. 

On-Site Sewage Development Application
Submit application to Tacoma Pierce County Health Department for on-site sewage system. 

Drinking Water Availability Letter
Submit application to Tacoma Pierce County Health Department for drinking water source. 

Residential Sewer Service Permit
Sewer work on residential property; single-family, duplexes, and accessory dwelling units, requires sewer review. 

Construction Drawing - Alterations & Additions
The Washington State Department of Labor and Industries must approve all structural alterations prior to County review. 

Approved Hauler
Haulers are required to be registered with Washington State Department of Transportation—Commercial vehicles. Contact the Department of Transportation—Commercial vehicles for more information.