Boulder Real Estate Market Update: September 2026
Prepared by The Zach Zeldner Team at Compass. Data source: IRES MLS via BrokerMetrics. Reporting period: September 2026 compared with September 2025.
Summary
Single-family home sales in the City of Boulder rose meaningfully in September 2026. Total sales volume increased 23% year over year to $153.6 million, the strongest September since 2022. Single-family homes under $2 million and between $2 million and $5 million drove the gains. The $2 million to $5 million range recorded 18 single-family sales, the most for any September in data going back to 2016. The condo and townhome market continued to face challenges, with lower prices and rising inventory, and there were no sales above $5 million in the City of Boulder or Boulder County.
How did the Boulder housing market perform in September 2026?
September was a strong month for single-family homes in Boulder. Total sales volume reached $153.6 million, up 23% from September 2025. The overall median sale price rose 18% to $1,057,500. That increase was influenced in part by a greater share of single-family homes among the month’s sales: condos and townhomes made up about one-third of closings, compared with nearly half a year ago. Median days on market overall was 63, compared with 61 last September.
Are single-family home prices in Boulder going up?
For homes under $2 million, yes. The median sale price for single-family homes under $2 million rose 10% year over year to $1,196,234. Sales activity was strong:
- Sold: 64 homes, up 45%.
- Under contract: 61 homes, up 15%.
- Sales volume: $75.4 million, up 46%.
Homes took somewhat longer to sell, however. Median days on market rose from 41 to 58, suggesting that buyers remain selective and thoughtful in their decisions. Months of supply held steady at 3.4.
Across Boulder County, the countywide median sale price for single-family homes under $2 million rose 5% to $808,000. In addition to the City of Boulder’s 64 sales, another 155 homes in this segment sold elsewhere in the county.
How is the Boulder condo and townhome market doing?
Conditions remain more challenging for attached homes:
- Median sale price: down 13% year over year to $519,175.
- Sales volume: down 28% to $22.5 million.
- Sold: 39 condos and townhomes, down 17%.
- New to market: 93 homes, up 35%.
- Months of supply: 7.9, up from 5.0 a year ago.
One encouraging sign was a shorter median days on market, which fell from 77 to 62. Still, the added inventory gives buyers more choices and has created a more competitive environment for sellers of attached properties.
How is Boulder’s luxury real estate market performing?
The market between $2 million and $5 million delivered a strong September. All 18 single-family sales above $2 million in the City of Boulder fell within this range, the most for any September in data going back to 2016. Sales volume in this range rose 45% year over year to $52.2 million, and the median sale price rose 3% to $2.8 million.
Median days on market declined from 145 last September to 113. That is still considerably longer than August’s 35 days, which suggests that many of the homes that sold had spent considerable time on the market. Another four homes in this price range sold elsewhere in Boulder County.
Above $5 million, there were no sales in the City of Boulder or Boulder County during September. New supply picked up, however, with 14 homes coming to market in the city, the highest monthly total since February. Given the limited number of transactions at this level, sales activity can fluctuate significantly from month to month.
What is happening in Louisville, Lafayette, and Longmont?
Results were more mixed in the communities surrounding Boulder:
- Longmont held steady. Sales volume rose 3% year over year to $79.6 million, and the median sale price increased 3% to $565,750.
- Lafayette: the median sale price declined 7% to $675,000. Homes sold faster, though, with median days on market falling from 49 to 40, and months of supply was the lowest of the three towns at 2.5.
- Louisville saw the most softness. There were 13 sales, compared with 29 last September, and the median sale price eased 7% to $801,000.
Given the smaller number of sales in these markets, month-to-month results can vary considerably.
What does the September market mean for Boulder buyers and sellers?
Single-family homes under $2 million: steady supply and rising prices continue to support sellers, while longer days on market give buyers a bit more room to be deliberate.
Condos and townhomes: higher inventory means buyers have more options, and sellers benefit from thoughtful pricing and preparation.
Luxury market: buyers have been active in the $2 million to $5 million range, though many homes are taking time to find the right buyer.
Because conditions vary considerably by neighborhood, price point, and property type, a closer look at your specific home or search is the best way to understand where you stand.
Frequently Asked Questions
What is the median home price in Boulder, Colorado?
In September 2026, the median sale price across all homes in the City of Boulder was $1,057,500. For single-family homes under $2 million, it was $1,196,234. For condos and townhomes, it was $519,175.
Are home prices in Boulder going up or down?
It depends on the segment. Single-family prices under $2 million rose 10% year over year in September 2026. Condo and townhome prices declined 13% over the same period.
How long does it take to sell a home in Boulder?
In September 2026, single-family homes under $2 million had a median of 58 days on market, and condos and townhomes a median of 62 days. Homes between $2 million and $5 million had a median of 113 days, though that figure moves considerably from month to month.
Is it a good time to sell a house in Boulder?
For single-family homes under $2 million, about 3.4 months of supply and rising prices point to a balanced-to-favorable environment for sellers. Condo and townhome sellers face more competition, with nearly 8 months of supply. Pricing strategy and preparation matter most in that segment.
What does months of supply mean in real estate?
Months of supply estimates how long it would take to sell all homes currently on the market at the current pace of sales. Lower numbers generally favor sellers, and higher numbers give buyers more negotiating room.
How is the luxury real estate market in Boulder?
In September 2026, the City of Boulder recorded 18 single-family sales between $2 million and $5 million, the most for any September in data going back to 2016. There were no sales above $5 million that month, though 14 new homes came to market at that level.
About The Zach Zeldner Team
The Zach Zeldner Team produces this Boulder Real Estate Insights market report each month using IRES MLS data. The team works with buyers and sellers across the City of Boulder, Boulder County, Louisville, Lafayette, and Longmont. To talk through how the current market applies to your specific price range and neighborhood, contact The Zach Zeldner Team.
