C-27 - Landscaping Contractor License

The C-27 Landscaping Contractor license in California authorizes you to design, construct, install, and maintain comprehensive landscape systems for both residential and commercial properties. This specialty classification covers everything from plant installation to irrigation systems, hardscape construction, and decorative outdoor features.

California's landscaping industry offers excellent opportunities for licensed contractors, with year-round demand driven by the state's climate and emphasis on outdoor living spaces. Whether you're an experienced landscaper looking to expand your business or transitioning from unlicensed work, obtaining your C-27 license opens doors to larger, more profitable projects.

Ready to get licensed? CSLS has helped thousands of landscaping professionals pass their CSLB exams with our industry-leading 99% pass rate. Our 40+ years of experience means you get proven exam preparation that works.

What is a C-27 Landscaping Contractor?

According to the California Contractors State License Board (CSLB), a Landscaping Contractor:

"Constructs, maintains, repairs, installs, or subcontracts the development of landscape systems and facilities for public and private gardens and other areas which are designed to aesthetically, architecturally, horticulturally, or functionally improve the grounds within or surrounding a structure or a tract or plot of land."

— California Code of Regulations, Title 16, Division 8, Article 3

In connection with landscape work, a C-27 contractor prepares and grades plots and areas of land for the installation of architectural, horticultural, and decorative treatments or arrangements.

C-27 Landscaping Contractor Scope of Work

With a C-27 license, you are authorized to perform a comprehensive range of landscaping services:

Softscape Installation

  • Lawn installation (sod, seed, hydroseeding)
  • Tree, shrub, and flower planting
  • Ground cover installation
  • Ornamental garden design
  • Native and drought-tolerant landscapes
  • Mulching and soil amendment

Irrigation Systems

  • Sprinkler system design and installation
  • Drip irrigation systems
  • Smart irrigation controllers
  • Backflow prevention devices
  • System repairs and modifications

Hardscape Construction

  • Walkways and pathways
  • Patios and outdoor living areas
  • Retaining walls and terraces
  • Garden walls and borders
  • Pavers and flagstone installation

Landscape Features

  • Water features and fountains
  • Landscape lighting systems
  • Arbors, pergolas, and trellises
  • Outdoor fire features
  • Drainage systems
  • Decorative elements

C-27 vs. Other Related License Classifications

Understanding which license you need depends on the type of work you plan to perform:

Classification License Type Scope Best For
C-27 Landscaping Contractor Complete landscape design, installation, irrigation, hardscape Full-service landscape contractors
D-49 Tree Service Tree trimming, removal, and maintenance only Arborists and tree specialists
D-59 Hydroseed Spraying Hydraulic seeding only Erosion control specialists
B General Building Landscaping as part of larger building projects General contractors adding landscape services
Important: A C-27 license covers irrigation system installation. You do NOT need a separate plumbing license (C-36) for landscape irrigation work that connects to the main water supply at the property line.

California C-27 License Requirements

Experience Requirements

The CSLB requires proof of qualifying experience before you can apply for a C-27 license:

  • 4 years of journeyman-level experience in landscaping work
  • Experience must be within the last 10 years
  • Work must demonstrate practical knowledge of the landscaping trade
  • Education from accredited programs can substitute for up to 3 years of experience

CSLB Examination

You must pass two examinations administered by the CSLB:

Law & Business Exam

  • 115 multiple-choice questions
  • Topics: California contractor law, business management, safety regulations, contracts, liens
  • 3.5 hours allowed
  • Minimum passing score: 72%

C-27 Trade Exam

  • 100 multiple-choice questions
  • Topics: Landscape design, irrigation systems, hardscape, plant materials, site preparation
  • 3 hours allowed
  • Minimum passing score: 72%

Financial Requirements

  • Contractor's Bond: $25,000 minimum (required)
  • Workers' Compensation Insurance: Required if you have employees
  • General Liability Insurance: Strongly recommended

Application Fees

  • Application fee: $450
  • Initial license fee: $200
  • Fingerprinting/background check: ~$65

C-27 Trade Exam Topics

The C-27 trade examination covers six major knowledge areas:

1. Landscape Design

  • Design principles
  • Plant selection criteria
  • Site analysis
  • Blueprint reading

2. Site Preparation

  • Grading and drainage
  • Soil preparation
  • Erosion control
  • Excavation methods

3. Irrigation Systems

  • System design
  • Components and materials
  • Water calculations
  • Controller programming

4. Hardscape Installation

  • Concrete and pavers
  • Retaining walls
  • Material selection
  • Proper installation

5. Plant Installation

  • Planting techniques
  • Soil amendments
  • Mulching methods
  • Plant care requirements

6. Job Site Safety

  • OSHA requirements
  • Equipment safety
  • Chemical handling
  • Trenching safety

Benefits of Getting Your C-27 License

Legal Compliance

  • Work on projects over $500 legally
  • Avoid CSLB penalties (up to $15,000 per violation)
  • Pull permits for irrigation and drainage work
  • Protect your business from legal liability

Business Growth

  • Qualify for commercial contracts
  • Work with general contractors as a sub
  • Access larger residential projects
  • Build credibility with clients

California Landscape Industry Outlook

California's landscaping industry remains strong due to:

  • Year-round work season in most California regions
  • Water-efficient landscaping requirements creating retrofit opportunities
  • Outdoor living trends driving residential demand
  • Commercial development requiring professional landscape installation
  • Fire-safe landscaping requirements in wildland-urban interface areas

CSLS C-27 Exam Preparation

Contractors State License Services has been helping landscaping professionals pass their CSLB exams for over 40 years. Our comprehensive program covers everything you need to know:

Our C-27 Exam Prep Includes:

  • Law & Business curriculum - California contractor law, licensing requirements, business management
  • Trade-specific content - Landscape design, irrigation, hardscape, plant materials
  • Practice exams - Realistic questions mirroring the actual CSLB format
  • Study guides - Comprehensive materials covering all exam topics
  • Expert instruction - Learn from licensed professionals

Course Options

  • In-Person Classes: Live instruction at 25+ California locations
  • Online Self-Study: Study at your own pace
  • Crash Courses: Intensive review before your exam
  • Bilingual Options: Available in English and Spanish
99% Pass Rate: Our students consistently achieve one of the highest pass rates in California. Don't risk failing your exam—invest in proper preparation with CSLS.

Ready to Get Your C-27 Landscaping License?

Join thousands of successful California landscape contractors who trusted CSLS for their exam preparation.

Get Free Information View Programs Call 1-800-772-7322

Frequently Asked Questions

What is a C-27 contractor license in California?

A C-27 Landscaping contractor license allows you to design, install, and maintain landscape systems including plants, irrigation, hardscape, and decorative features for residential and commercial properties.

How do I get a landscaping contractor license in California?

You need 4 years of journeyman-level landscaping experience, pass the CSLB Law & Business and Trade exams, obtain a $25,000 contractor bond, and complete the application process. CSLS provides comprehensive exam preparation to help you pass on your first attempt.

What work can a C-27 contractor perform?

C-27 contractors can design and install plants, lawns, trees, shrubs, irrigation systems, drainage, retaining walls, walkways, patios, water features, landscape lighting, arbors, and decorative elements.

Do I need a license for landscaping work in California?

Any landscaping work that exceeds $500 in labor and materials requires a contractor license. The C-27 license is the appropriate classification for professional landscape contractors.

How hard is the C-27 contractor license exam?

The C-27 exam has two parts: Law & Business (115 questions) and Trade (100 questions). The trade exam covers landscape design, irrigation, hardscape, plant materials, and job safety. CSLS has a 99% pass rate.

How much does a C-27 contractor license cost?

Total costs include: application fee ($450), initial license fee ($200), contractor bond ($25,000 minimum), and exam prep courses. Total investment is typically $1,500-$3,000.

What experience do I need for a C-27 license?

You need 4 years of journeyman-level experience in landscaping work within the last 10 years. Education from accredited programs can substitute for up to 3 years of experience.

Can a C-27 contractor install irrigation systems?

Yes. The C-27 classification explicitly includes irrigation and sprinkler system installation as part of the landscape scope of work.