Is my home a manufactured or mobile home?
Use ourFind Labels page to find out if your home is a manufactured or mobile home that requires permits and inspections for alterations by L&I.
Are you remodeling or repairing your manufactured home? Depending on the work you are doing you may need a permit. Use the information on this page to help you determine if you need a permit, how to purchase one, and requesting an inspection for the work you have done.
If you are buying a permit for the first time or are unsure which permit to get, read on.
Code of federal regulation
Manufactured Home Construction and Safety Standards (CFR 3280)
Manufactured Home Procedural and Enforcement Regulations (CFR 3282)
Check to see if you need a permit
Simply checking the list for which alterations require permits tab (above) could save you time and money. You may not need a permit for the type of work you're doing. Or, you may need a different kind of permit, especially if your project includes electrical work.
Find out about electrical permits
If the electrical work takes place outside your home, you need an electrical permit. If the electrical work takes place inside your home, you need a manufactured/mobile home permit.
Check plan submittal requirements before you buy a permit
Some alterations require you to submit plans for approval when you buy a permit. Find out if your project needs to submit plans.
Learn about inspections if you refinance or sell your home
You might need a Homeowner Requested Inspection (HRI). An HRI is often needed to disclose unpermitted work before you refinance or sell your manufactured or mobile home.
Find out how much a permit and inspection will cost
View the current permit and inspection fees in the Washington Administrative Code (WAC 296-150M-3000).
Processing time to receive your permit:
Online: Immediately
In person at a service location: Immediately
Postal mail: Same day as received
***Attention***
Before you apply for a manufactured home permit, here’s what you need to know:
- Homeowner requested inspections (HRIs) are non-refundable once an inspector visits your permit site.
HRIs are only designed to help a manufactured home purchaser determine what permits they need or verify that a nearby structure is self-supporting before the sale or purchase.
HRIs cannot be used to approve alterations. If you’re not sure if an HRI permit is what you need, please contact the FAS inspector in your region.
- All refund requests must be made within 60 days of purchasing the permit
(Supervisors may override in special cases for extenuating circ*mstances.)
- We cannot issue a refund if:
- An inspector visited your permit site, or
- Work was abandoned, transferred, or not complete.
- All approved refund requests are subject to a processing fee.
Homeowners: Buy a permit online.
Contractors
- . All you will need is your Contractor ID and UBI number.
- . Buy permits and request inspections through My L&I so you can do the following:
- Track account balances.
- Review your L&I permits and inspection history.
- Open a Contractor Deposit (CD) account with L&I. An owner or principle of the company must first fill out and sign the (F120-116-000) and submit it to L&I by following the directions on the application. Once registered, you can deposit money into your CD account using the Account Deposit for Factory Assembled Structures Account Holders (F622-081-000).
- Pay for permits with credit/debit cards or an e-Check, a one-time withdrawal from your checking account.
Other ways to buy a permit
- By mail:
- Download a Manufactured/Mobile Home Permit Application (F622-036-000).
- Mail the completed form and your payment to the nearest you.
- Go to the nearest you:
- Download a Manufactured/Mobile Home Permit Application (F622-036-000), or pick one up at your local L&I office.
- Bring the completed form to your local L&I office, and pay by cash, check, money order, or credit/debit card.
Next
See Do the Work tab.
Contact us
FAS1@Lni.wa.gov1-800-705-1411 Option 3
Mailing address
Washington State Department of Labor & Industries
PO Box 44430
Olympia, WA 98504-4430
Location
7273 Linderson Way SW
Tumwater, WA 98501
Now that you have your permit, you can start working. Download a pre-inspection checklist to help guide your work, and prepare for inspection. Also, remember to post your permit near your front door or worksite.
Get a pre-inspection checklist/project brochure, if available
- Adding or Changing Openings (F622-096-000).
- Additions to the Home (F622-095-000).
- Air Conditioner/Heat Pump Installation (F622-014-000).
- Alteration Fire Safety (F622-011-000).
- Alteration Polybutylene Re-Pipe (F622-053-000).
- Alteration Re-Roofing for Low Slope Roofing (F622-039-000).
- Copper Tubing Gas Line (F622-046-000).
- Decertification of a Manufactured home (F622-063-000).
- Electric/Gas Conversion (F622-013-000).
- Flood Damaged Manufactured Home (F622-040-000).
- Floor Repair (F622-100-000).
- Gas Room Heaters (F622-045-000).
- Gas Test Affidavit (F622-048-000).
- Low Voltage Fire/Intrusion Alarm (F622-038-000).
- Minimum Header Structural Requirements (F622-080-000).
- (F622-094-000).
- Re-Roof (F622-092-000).
- (F622-099-000).
- Siding Replacement (F622-093-000).
- Solar Panels (F622-098-000).
- Steel or Wrought-Iron Gas Line (F622-044-000).
- Wood/Pellet Stove/Fireplace (F622-015-000).
- Your Manufactured Home (F622-049-000).
Post your permit near your front door or work site.
Do the permitted work
Follow the pre-inspection checklist if you have one. If you are not qualified to do the work yourself, hire a contractor. Hire smart. L&I can help.
Protect My Manufactured Home when hiring a contractor.
Next
See Inspection tab.
Contact us
FAS1@lni.wa.gov1-800-705-1411 Option 3
Mailing address
Washington State Department of Labor & Industries
PO Box 44430
Olympia, WA 98504-4430
Location
7273 Linderson Way SW
Tumwater, WA 98501
Online
To request an inspection online, have your permit number and authorization code.
By phone
To request an inspection by phone, call your local .
In person
Go to the . Bring your permit number with you.
After you've made your request, your inspector will call you to schedule the inspection.
How are the inspections scheduled?
Your inspector is responsible for a very large area of the state and must schedule for maximum efficiency. The inspector personally contacts each customer by phone to confirm the time, based on a carefully planned weekly schedule.
Our goal is to inspect within 10 days of your request, though sometimes it can take longer. We appreciate your patience.
Check the status of your inspection
The easiest way to check the status of your inspection is to look up your permit in the Permit Search tool. You will need your permit number. Be sure to select Manufactured/Mobile Home, not electrical, for your permit.
Next
See Extra Fees and Refunds tab.
Contact us
FAS1@Lni.wa.gov1-800-705-1411 Option 3
Mailing address
Washington State Department of Labor & Industries
PO Box 44430
Olympia, WA 98504-4430
Location
7273 Linderson Way SW
Tumwater, WA 98501
Check to see if you owe any extra fees for your permit. The easiest way to check for extra fees is to enter your permit number into the Permit Search tool.
Remember: Select Manufactured/Mobile Home for your permit type (instead of electrical). This ensures the correct information appears.
Pay extra fees
You may use a credit card to pay extra fees in Permit Search. Or, go to the
How much are the fees?
View the current permit fees (WAC 296-150M-3000).
Request a refund
If you are entitled to a refund, download and complete the Permit Refund Request Form (F621-105-000).
Contact us
FAS1@lni.wa.gov1-800-705-1411 Option 3
Mailing address
Washington State Department of Labor & Industries
PO Box 44430
Olympia, WA 98504-4430
Location
7273 Linderson Way SW
Tumwater, WA 98501
Homeowners and contractors: L&I makes sure that changes (alterations) to manufactured/mobile homes meet safety standards. You must get a permit before starting an alteration.
Important!
Before you apply for a manufactured home permit, here’s what you need to know:
- Homeowner requested inspections (HRIs) are non-refundable once an inspector visits your permit site.
- HRIs are only designed to help a manufactured home purchaser determine what permits they need or verify that a nearby structure is self-supporting before the sale or purchase.
- HRIs cannot be used to approve alterations. If you’re not sure if an HRI permit is what you need, please contact the FAS inspector in your region.
- All refund requests must be made within 60 days of purchasing the permit.
(Supervisors may override in special cases for extenuating circ*mstances). - We cannot issue a refund if:
- An inspector visited your permit site, or
- Work was abandoned, cancelled, transferred, or not complete.
- All approved refund requests are subject to a processing fee.
Does your alteration require a permit and inspection?
Select the item below, and if YES appears in the Required? column, the item requires a permit and inspection.
If YES, then go on to the next step to buy your permit: Buy a permit online
Processing time to receive your permit:
Online: Immediately
In person at a service location: Temporarily unavailable
Postal mail: 2-3 business days for processing + mailing time
All other alteration applications, allow 2-3 weeks for a response. Accuracy and completeness speeds up the processing time.
Appliances
- Air conditioners/heat pumps.
- Clothes washer.
- Clothes dryer (electric).
- Clothes dryer (gas).
- Dishwasher.
- Microwave (over range).
- Range/Oven alterations.
Structural changes
- Doors (interior or exterior).
- Earthquake-resistant bracing structure.
- Interior alterations.
- Roofing.
- Structural Changes/Interior remodeling.
- Windows.
Water, electric, gas, plumbing
- Electrical.
- Furnace alterations (electric or gas).
- Gas lines.
- Plumbing.
- Water heater (electric).
- Water heater (gas).
Pellet or wood stove, fireplace
- Pellet stove.
- Wood stove, or fireplace.
Appliances
Air conditioners/heat pumps
| Alterations | Required? |
| New installation | YES |
| Replacement | YES |
| Reconnection after moving home | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| Download Air Conditioner/Heat Pump Pre-Inspection Checklist (F622-014-000) |
Clothes washer
| Alterations | Required? |
| New installation (pre-plumbed and wired) | NO |
| Replacement | NO |
| Repair and approved parts | NO |
| Adjustment and/or maintenance | NO |
Clothes dryer (electric)
| Alterations | Required? |
| New installation (pre-wired electrical) | NO |
| Replacement | NO |
| Repair with approved parts | NO |
| Adjustment and/or maintenance | NO |
| Replacement with gas clothes dryer when modifications to electrical or gas systems are performed | YES |
Clothes dryer (gas)
| Alterations | Required? |
| New installation (pre-plumbed gas)* | NO |
| Replacement* | NO |
| Repair with approved parts | NO |
| Adjustment and/or maintenance | NO |
| Replacement with electric clothes dryer when modifications to electrical or gas systems are performed | YES |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Dishwasher
| Alterations | Required? |
| New installation | YES |
| Replacement of cord connect | NO |
| Replacement of direct wiring | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
Microwave (over range)
| Alterations | Required? |
| New installation when electrical system modifications are performed | YES |
| Replacement | NO |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| Microwave oven (Countertop) | NO |
Range/oven alterations
| Alterations | Required? |
| Replacement (cord connected) | NO |
| Replacement (direct wired) | YES |
| New gas installation* | YES |
| Replace gas appliance with no change in the gas line* | NO |
| Replace electric with gas appliance(s)* | YES |
| Replace gas with electric appliance(s)* | YES |
| Repair with approved parts | NO |
| Adjustment and/or maintenance | NO |
| Download Electric/Gas Conversion Pre-Inspection Checklist (F622-013-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Structural changes
Structural alteration permits must be purchased at your local L&I office.
Doors (interior or exterior)
| Alterations | Required? | May require plan review |
| Additional door(s) | YES | YES |
| Replacing a door that fits into the same opening | NO | NO |
Earthquake-resistant bracing structure
| Alterations | Required? |
| Earthquake resistant bracing systems are not an alteration to a home | NA |
| Licensed contractors need to install them | NA |
| A certified installer must be on site when they are installed | NA |
| The local building department must inspect the installation | NA |
Interior alterations
| Alterations | Required? |
| Painting, wallpapering and similar work | NO |
| Replacement or additions of curtains, drapes, blinds, window shades and other window coverings | NO |
| Replacement of carpeting and other floor covering materials with similar materials | NO |
Painting and siding
| Alteration | Required? |
| Painting the exterior | NO |
| Replacement of siding | YES |
| Bottom Board - Repair of normal deterioration | NO |
Roofing
| Alteration | Required? | May require plan review |
| Reroofing | YES | YES |
| Applying liquid or mastic roof sealant to a metal roof | NO | NO |
| Repair of damaged composition shingles | NO | NO |
| Download Alteration Re-roofing Permits for Low Slope Roof Checklist (F622-039-000). |
Structural changes/interior remodeling
| Alterations | Required? | May require plan review |
| Adding a dormer | YES | YES |
| Truss repairs | YES | YES |
| Add opening in wall | YES | YES |
| Add gypsum board to walls or ceilings | YES | YES |
| Repair or replace floor decking or joists | YES | YES |
| Self-supporting decks and awnings | NO | NO |
| Solar panels | YES | YES |
Windows
| Alterations | Required? | May require plan review |
| Replacement in same opening with no structural changes* | NO | NO |
| Replacement when structural changes are required | YES | YES |
| Replacement of glass | NO | NO |
| *Windows in bedrooms must be of egress type | - | - |
Water, Electric, Gas, Plumbing
Electrical
| Alteration | Required |
| Replacing main electrical panel | YES |
| Adding circuits | YES |
| Extending existing circuit(s) | YES |
| Replacing lighting fixtures* | NO |
| Replacing circuit breakers/fuses | NO |
| Replacing switches, receptacles, light bulbs, fluorescent tubes and glass or plastic shades | NO |
| Repairing bath exhaust fans | NO |
| Repairing fans in kitchen range hoods | NO |
| *Fixtures must be installed per their listing and intended use. |
Furnace alterations (electric or gas)
| Alteration | Required? |
| New installation* | YES |
| Replacement* | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| Replace electric furnace with gas furnace* | YES |
| Replace gas furnace with electric furnace | YES |
| Change from LP gas to natural gas or from natural gas to LP gas per its listing* | NO |
| Download Electric/Gas Conversion Pre-Inspection Checklist (F622-013-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Gas lines
| Alteration | Required? |
| New installation* | YES |
| Extend existing gas line* | YES |
| Repair | YES |
| Download Steel or Wrought-Iron Gas Line Pre-Inspection Checklist (F622-044-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Plumbing
| Alteration | Required? |
| Adding plumbing fixtures* | YES |
| Repairing damage* | YES |
| Replacing fixtures** | YES |
| Repairing fixtures* | NO |
| Replacement/repair of shower doors and curtains | NO |
| Download Alteration Polybutylene Re-pipe Pre-inspection Checklist (F622-053-000) | |
| *Fixtures must be installed per their listing and intended use. **A permit is not required for replacing a sink or toilets with a like fixture so long as there are no changes to the water or drain lines |
Water heater (electric)
| Alterations | Required? |
| Replacement with electric water heater | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| Replacement with gas water heater* | YES |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Water heater (gas)
| Alterations | Required? |
| Replacement with gas water heater* | YES |
| Repair | NO |
| Change from LP gas to natural gas or natural gas to LP gas per its listing* | NO |
| Adjustment and/or maintenance | NO |
| Replacement with electric water heater | YES |
| Download Steel or Wrought-Iron Gas Line Pre-Inspection Checklist (F622-044-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Pellet or wood stove, fireplace
Pellet stove
| Alteration | Required? |
| New installation* | YES |
| Replacement* | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| DownloadWood/Pellet Stove/Fireplace Pre-Inspection Checklist (F622-015-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Wood stove, or fireplace
| Alteration | Required? |
| New installation* | YES |
| Replacement* | YES |
| Repair | NO |
| Adjustment and/or maintenance | NO |
| Download Wood/Pellet Stove/Fireplace Pre-Inspection Checklist (F622-015-000) | |
| *Homes with fuel burning appliances must be equipped with listed carbon monoxide detectors. |
Contact us
FAS1@lni.wa.gov1-800-705-1411 Option 3
Mailing address
Washington State Department of Labor & Industries
PO Box 44430
Olympia, WA 98504-4430
Location
7273 Linderson Way SW
Tumwater, WA 98501
