CITY OF BOULDER - ALL PRICE POINTS
The Boulder market remained active in September, even as buyer timelines lengthened slightly. Single-family homes averaged 72 days on market (+31% YoY), while average price per square foot rose +17.3%, reflecting continued strength in property values. Total dollar volume increased +5.5% YoY to $124.6M, with 104 closed sales at an average price of $1.2M. Single-family home sales declined -5%, while attached home sales rose +12% YoY. Across Boulder County, overall momentum was slightly stronger, with closed sales up +10.4% and total volume up +14%, supported by solid late-season inventory.
CITY OF BOULDER - LUXURY: $2M-$5M
In the City of Boulder, luxury sales totaled 13 homes (+18% YoY), with 14 homes going under contract. Average days on market climbed to 128, double last year’s figure and the highest since January 2025. Still, on a year-to-date basis, homes in this range are selling faster overall: 88 days vs. 100 in 2024. New listings increased +65% YoY, well above Boulder’s typical September average of around 33, suggesting that sellers entering the market this fall may be motivated to sell.
CITY OF BOULDER - ULTRA LUXURY: $5M+
At the top of the market, the ultra-luxury segment remained steady in September. One sale closed and two homes went under contract during the month. Inventory climbed to 48 homes in the City of Boulder (+14% YoY) and 58 across Boulder County (+16% YoY). Ten new listings came to market within the city, along with two additional ultra-luxury homes countywide, reflecting continued confidence and activity among high-end sellers.
LAFAYETTE
Lafayette also experienced strong fall momentum, with closed sales up +78% YoY and total dollar volume up +93% to $33.2M. Average days on market reached 76 (+24.6%), while average sales price rose +8.6% YoY to $810K. Price per square foot dipped –7.7%, suggesting a wider mix of price points driving activity. Inventory climbed +19.6% YoY to 110 homes, giving buyers more choice and supporting balanced conditions as the market heads into Q4.
LOUISVILLE
Louisville saw a notable surge in activity in September, with closed sales up +76% YoY and total dollar volume climbing +139% to $30.9M. The average sales price rose +35.5% to just over $1M, while average days on market increased to 67 (+55.8%), indicating longer selling timelines amid steady demand. Price per square foot grew +8.6% YoY to $392, underscoring the town’s continued appeal even as more properties come to market.
