California C-27 Landscaping Contractor License: Scope, Verification, and Contractor vs. Architect

The C-27 classification covers installing and building landscape systems (planting gardens and lawns, irrigation, drainage, grading, and decorative outdoor work such as walkways and hardscape) to beautify, develop, or improve a parcel of land.

Some of that work overlaps other classifications: paver and retaining-wall work can fall under C-29 (masonry) or C-8 (concrete), and if the landscaper applies pesticides as part of the job, that is a separate California Department of Pesticide Regulation (CDPR) applicator credential to check.

A landscape contractor (CSLB C-27) builds and installs the landscape. A landscape architect designs it and is licensed by a different body, the Landscape Architects Technical Committee (LATC), with a separate lookup. Homeowners often land on the wrong database searching to 'verify a landscaper.'

For someone building your yard, verify the CSLB C-27. For someone producing design or planning documents, that is the LATC credential.

Any project where labor, materials, and all other items total $1,000 or more must be performed by a CSLB-licensed contractor. The threshold rose from $500 to $1,000 on January 1, 2025 under Assembly Bill 2622 (Business & Professions Code §7048). Below $1,000, a narrow minor-work exemption can apply only if the job is casual, minor, and standalone (not part of a larger project), requires no building permit of any kind, no one is employed on the job, and any advertising discloses that the person is not licensed.

Larger landscape projects (grading, drainage, and hardscape) can also require city permits, separate from the contractor's license. For anything beyond minor planting, look for an Active C-27.

Confirm the license is Active and the C-27 classification is listed, either on the CSLB "Check a License" tool or on the contractor's profile in this directory. Match the license to the business you're hiring. Check that the $25,000 contractor bond is on file (Business & Professions Code §7071.6) and that workers' compensation coverage, or a valid exemption, is shown.

Browse Active C-27 landscaping contractors by city in the California landscaping directory and see each one's dated CSLB status before you hire.

A landscaping contractor must carry workers' compensation insurance for any employees. A contractor that genuinely works alone can currently file a no-employee exemption, so the CSLB record may show an exemption rather than a policy: confirm one or the other before you hire. Since January 1, 2026 (SB 291), a licensee caught employing workers without coverage faces minimum penalties of $10,000 per violation for a sole owner and $20,000 per violation for a partnership, corporation, or LLC, and cannot renew without current coverage.

Senate Bill 1455 will extend that requirement to every CSLB licensee, regardless of employees, on January 1, 2028, with CSLB's exemption-verification process due by January 1, 2027. Five high-risk classifications already carry no exemption at all, C-8 (concrete), C-20 (HVAC), C-22 (asbestos abatement), C-39 (roofing), and C-61/D-49 (tree service), and must hold coverage regardless of employees.