Landscape Professional Registration

Water efficiency is a priority for Castle Rock Water. Educational programs including landscaper registration and training are put in place to encourage water conservation and efficiency throughout the Town.

Landscape Company Registration

The Town of Castle Rock requires landscape companies to be registered to conduct business on nonresidential and commercial projects. Landscape company registration is done through the Town of Castle Rock’s Development Services Department, Building Division. Registration requirements include proof of insurance and an annual fee. 

Contractor Registration form (PDF)

Landscape companies must designate one or more Registered Landscape Professionals who are directly responsible for maintaining compliance with Castle Rock Water and Town criteria. Registered Landscape Professionals must be present during all inspections.

Registered Landscape Contractor list (PDF)

Registered Landscape Professionals

Castle Rock Water requires industry professionals performing commercial and nonresidential landscape or irrigation work within the Town to hold a current Qualified Water Efficient Landscaper (QWEL) certification, as well as be trained in the Water Use Management Plan, the Landscape and Irrigation Criteria Manual and Castle Rock Water efficiency standards. Please contact Castle Rock Water Conservation Department with questions via email.

Together, Castle Rock Water and South Metro Water Supply Authority administer courses and exams throughout the year in order for individuals to obtain QWEL certification and become a Registered Landscape Professional with the Town of Castle Rock. For more information on QWEL certification, visit or send an email.

Colorado State Licensed Landscape Architects are exempt from the Town of Castle Rock registration requirement; however, they are encouraged to participate in QWEL courses and training on the Town’s standards and Castle Rock Water criteria.  

Registration renewal

Registered Landscape Professionals must maintain QWEL certification, stay current on the Town’s irrigation and landscaping policies, and be trained on Castle Rock Water landscape and irrigation criteria. These criteria include the Landscape and Irrigation Criteria Manual and the Water Use Management Plan

Registration renewal is required annually by April 30.

Registration renewal (online form)

Qualified Water Efficient Landscaper (QWEL) Training

Feb. 12, 13 and 14, 2024 
8:00 a.m. to 5:00 p.m.

Centennial Water and Sanitation District
62 Plaza Drive, Highlands Ranch, CO 80129

FIRST! Create your QWEL user account, then register for the class titled QWEL (English) Highlands Ranch, CO QWEL.

This course is sponsored by the South Metro Water Supply Authority (SMSWA).

The fee for this course and the QWEL Certification is $150.  Payment can be made on

QWEL is an EPA WaterSense labeled Professional Certification Program for irrigation system audits. The course provides landscape professionals with hands-on demonstrations and education for the local climate, landscape water use, irrigation system design and maintenance, controller programming and operation, and sustainable landscaping.

QWEL graduates are certified to perform 3rd party irrigation audits and can be listed for hire on the EPA WaterSense and QWEL websites if they choose. 

This class will be taught by educators and water efficiency professionals:
Rick Schultz, Tim Dagg, Courtney Stoddard and Paige McFarland.

Space is limited to 50 attendees.

To pass the QWEL course, participants must:

  • Attend each day of training
  • Complete an irrigation audit
  • Pass the QWEL exam

Questions? Contact Angie Grunder, SMWSA