C-47 General Manufactured Housing Contractor license in California

Updated November 1, 2026 · Official name from CSLB's classification list

• 459licenses hold C-47
• 96.6%Clear (CA addresses)
• 46.2%workers' comp exempt (all: 49.6%)
• 100%contractor's bond on file
• 19.5 yrsmedian time licensed
• 50%businesses, not sole owners

A C-47 contractor installs, alters, repairs or prepares to move manufactured homes, mobilehomes and multifamily manufactured homes, along with their foundations and accessory structures. On a single-family site, a C-47 can also hook up gas, water, sewer and electric service to the home.

CSLB's ADU guidance says a C-47 can install an ADU that is a manufactured home built off site. Recreational vehicles, commercial coaches and factory-built housing under a different state law are excluded. See our ADU license guide.

Typical work under C-47

• Setting and installing a manufactured home
• Manufactured ADUs built off site
• Foundations and tie-down systems
• Utility hookups on a single-family site
• Repairs and alterations to mobilehomes
• Accessory structures such as carports and awnings

Work that needs a different license

• A site-built ADU: B General Building
• Grading and site prep beyond the home pad: C-12 Earthwork and Paving
• Bringing new utility lines across the lot: C-34 Pipeline or C-36 Plumbing

Tips before hiring

• For a manufactured ADU, ask whether HCD or the local building department will issue the permit.
• Ask what the foundation type is and whether it suits the site soil.
• Get delivery, crane and setup costs listed separately in the bid.

Where C-47 contractors are

The cities with the most C-47 license holders in CSLB's current file:

1. Santa Rosa: 13
2. Sacramento: 12
3. Hemet: 10
4. Huntington Beach: 10
5. Bakersfield: 9
6. Corona: 9
7. Moreno Valley: 8
8. San Jose: 8
9. Redding: 7
10. Riverside: 6

How to verify a C-47 license

1. Search the business or license number here and confirm C-47 is listed on the profile.
2. Check the same number on CSLB's Instant License Check.
3. Read our full guide to checking a contractor license.

Related license types

• B General Building Contractor
• C-12 Earthwork and Paving Contractors
• C-36 Plumbing Contractor
• C-61 Limited Specialty

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

More license types: ← C-46 Solar Contractor · C-49 Tree and Palm Contractor →