C-27 Landscaping Contractor license in California

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

12,644licenses hold C-27
95.3%Clear (CA addresses)
39.3%workers' comp exempt (all: 49.6%)
99.9%contractor's bond on file
13.2 yrsmedian time licensed
53.4%businesses, not sole owners

A C-27 contractor builds, maintains and repairs gardens and grounds around a home or other building, for looks, function or both. CSLB's description covers public and private gardens and includes preparing and grading plots for planting and decorative treatments.

This is the license for a new front yard, a drought-tolerant conversion or a backyard redesign. Bigger yard projects often pull in other trades, such as a pool, gas line or electrical circuit, and those need their own licenses.

Typical work under C-27

Planting trees, shrubs, ground cover and lawns
Grading and preparing planting areas
Drought-tolerant yard conversions
Garden features and decorative treatments
Repair and upkeep of installed landscaping

Work that needs a different license

A swimming pool or spa: C-53 Swimming Pool
A gas line to a fire pit or outdoor kitchen: C-36 Plumbing
A new outdoor 120-volt circuit: C-10 Electrical

Tips before hiring

Ask for a planting plan with plant names and sizes, so you can compare bids.
Ask what plant warranty is offered and what voids it.
If the job includes a patio, wall or lighting, ask who does each part and check each license.
Simple mow-and-blow gardening is not the same as building a yard. Look up the C-27 before signing a contract for construction.

Where C-27 contractors are

The cities with the most C-27 license holders in CSLB's current file:

All landscapers lists

Cities with at least 20 C-27 license holders, largest first:

How to verify a C-27 license

Search the business or license number here and confirm C-27 is listed on the profile.
Check the same number on CSLB's Instant License Check.
Read our full guide to checking a contractor license.

Related license types

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-23 Ornamental Metal Contractor · C-28 Lock and Security Equipment Contractor →