Boulder County home sales slow sharply in August as condo market weakens

Boulder County home sales slowed in August, with single-family closings down 20.1% from a year earlier and townhouse and condominium sales down 32.6%, according to the Colorado Association of REALTORS®’ August market update.

The decline did not amount to a broad price collapse. The median price for a single-family home fell 3.0% from August 2025 to $809,950, while the year-to-date median through August rose 0.6% to $850,000.

Single-family active listings fell 21.3% year over year to 852. New listings declined 14.3% to 311, pending sales fell 16.2% to 228, and completed sales fell to 231 from 289 a year earlier. Through August, single-family sales were nearly unchanged at 2,087, down 0.4% from the same period last year.

The townhouse and condominium market weakened more sharply. Active listings fell 18.8% to 411, pending sales dropped 24.4% to 62, and completed sales fell to 58 from 86. New listings increased 7.5% to 144. The segment’s median price fell 12.6% to $417,500, while the median time to sell rose from 77 days to 82.

Through August, townhouse and condominium sales were down 16.8% to 609. The segment’s median price fell 3.0% to $485,000, and its average price declined 6.0% to $538,043.

Mortgage rates and seasonal demand may have contributed to the slowdown, but the county data do not measure the effect of either factor. The average 30-year fixed mortgage rate was 6.67% in August, up from 6.59% a year earlier, according to Freddie Mac data cited in the National Association of REALTORS®’ August sales report. The Denver Metro Association of REALTORS®’ August report says buyer activity traditionally slows from early August through Labor Day.

Metro Denver closed sales fell 17.3% from August 2025 to August 2026. In Erie, August single-family sales fell 37.1% year over year, while townhouse and condominium sales fell 63.6%.

Insurance costs are another potential pressure for condominium buyers. The Colorado Division of Insurance says wildfire and hail exposure, claims history, rebuilding costs, reinsurance markets and the use of surplus-line coverage can affect homeowners association insurance costs. The available market data do not show whether local premiums or coverage availability changed during August.

The market update cautions that one-month figures can be volatile because of small sample sizes. Its price figures also exclude seller concessions and down-payment assistance.