Douglas County home sales fell in August as prices held up and condo supply grew
Douglas County’s August housing data show a slower single-family market, more attached-home inventory and different results in Highlands Ranch, Castle Rock and Lone Tree.

Douglas County’s resale market slowed in August, with fewer single-family homes listed and sold even as the median sale price rose. Townhouse and condominium inventory expanded, but those properties also saw fewer completed sales.
The county recorded 1,599 active single-family listings in August, down 15.3% from a year earlier. New listings fell 6.1% to 601, and closed sales declined 10.4% to 480. The median single-family sale price rose 1.6% to $750,000, while the median time to sell increased from 48 to 49 days, according to the Denver Metro Association of REALTORS®’ August market report.
Through August, single-family closed sales were down 5% from the same period in 2025, and the year-to-date median price was down 1.3% to $740,000.
The attached-home market moved differently. Active townhouse and condominium listings increased 25.4% to 346, and new listings rose 25.6% to 98. Closed sales fell 14.5% to 65. The segment’s August median price increased 4.5% to $470,000, while its year-to-date median was nearly unchanged at $461,250.
Results varied among the county’s communities. Highlands Ranch had the sharpest single-family contraction: active listings fell 55% to 122, new listings dropped 61.1% to 51, and closed sales fell 37% to 63. Its August median price rose 3.4% to $750,000, and its year-to-date median increased 2.7% to $755,000, the community report shows. The report cautions that one-month results can be volatile.
Castle Rock’s August single-family market also slowed, with active listings down 16.4% to 509 and sales down 12.1% to 131. Through August, however, closed sales were up 1.4% and pending sales were up 2.4%, while the year-to-date median price declined 1.1% to $710,000, according to the Castle Rock update.
Lone Tree’s monthly results were mixed. Active single-family listings fell 30.1% to 51, but new listings rose 34.8% and sales increased 11.1% to 20. The August median price fell 15.2% to $1.0725 million, while its year-to-date median remained $925,000, the Lone Tree report says. The report warns that monthly percentages can appear extreme because of the community’s relatively few transactions.