Courthouse
The 23rd Judicial District was created on January 14, 2025
Lone Tree is in Douglas County, and Douglas County is now part of the 23rd Judicial District together with Elbert County and Lincoln County. District business is handled at the Douglas County Courthouse, 4000 Justice Way, Suite 2009, Castle Rock, CO 80109. Before that date Douglas County sat in the 18th Judicial District alongside Arapahoe County. The separation is recent enough that a claim filed today can have accrued while the old structure was still in place, since the limitation period for these cases is 2 years. Published guidance, older directories, and a good deal of legal marketing still describe Douglas County as part of the 18th. Working from that description is a poor way to begin.