Code Compliance

Tree Care

Tree Planting

Our beloved local climate is awesome for people, yet it is very harsh for most trees.  Your efforts in tree selection, proper planting, and ongoing maintenance are critical to the longevity and healthy appearance of your trees. 

Tree Selection

The City of Lone Tree prohibits planting the emerald ash tree. The best tree selections take into consideration the mature size of proposed trees as well as the features of the planting location. Please consider trees found on the Front Range Tree Recommendation List.

Tree Planting

The average life of a tree in Colorado is less than 12 years. You can improve the health and survival of your new tree with proper planting. Consult the numerous guides prepared by the Colorado State University Extension.

Winter Watering

Watering can prevent root damage that affects the health of the entire plant. Water trees only when air and soil temperatures are above 40 °F with no snow cover. Apply water at mid-day so it will have time to soak in before possible freezing at night. Apply 10 gallons of water for each diameter inch of the tree. For example, a two-inch diameter tree needs 20 gallons per watering. 

Tree Ordinances

Several city ordinances relate to commercial landscape maintenance and tree replacement on business property. These requirements do not apply to residential properties. Here are a few important highlights:


Altering the landscaping of commercial property (as well as the color of building exteriors) requires advance approval in the City of Lone Tree. Landscaping is considered a component of the approved site plan that needs to be maintained. Replacement of dead trees on commercial property is required. Below are highlights from the Lone Tree Municipal Code Section 16-32-130.

Tree Replacement

Property owners shall be required to replace trees or shrubs when forty percent (40%) or more of the plant is dead or is succumbing to a disease that is likely fatal in the short term. Trees shall also be replaced when the primary leader (the top) is dead and the next lateral branch is unlikely to assume and maintain apical dominance (take over as a new top).

Minimum Tree Sizes

New and replacement evergreen trees on commercial properties may range between 6 and 10 feet in height. Leaf-bearing trees may range between 2 and 3-inch caliper. The minimum plant sizes are located in the Municipal Code Section 16-32-70.

Julius Zsako
Zoning Coordinator & City Forester
9220 Kimmer Drive, Suite 100
Lone Tree, CO 80124

Ph: 720-509-1269
Fax: 303-229-4949
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