Only 25 homes sold in Brookline in September, down from 45 a year earlier.

The 44% decline marks the steepest September drop in the monthly data tracked by the Bushari Team at Compass. The Brookline-based real estate firm compiles reports from MLS PIN data. The report, published Friday, Oct. 2, also shows homes sitting far longer and selling well below asking prices.

Median days on market doubled to 71, up from 34 in September 2025. The average climbed to about 80 days. Just 12% of sales closed above asking price, down from nearly 27% a year ago. Meanwhile, 84% sold below asking, and 52% of sellers had cut their price at least once before finding a buyer.

The sale-to-list ratio fell to 96.5%, down from 98.4% in September 2025.

Months of supply, a measure of how long it would take to sell every active listing at the current pace, nearly doubled to 8.7 from 5.0 a year earlier. The town had 218 active residential listings.

Prices, however, moved higher. The median sale price rose to $1,275,000 from $1,117,500 in September 2025. The average hit $1,724,528, up from $1,526,667. Price per square foot climbed 6.2% to $859.

The report, compiled by Bushari Team founder Elad Bushari, contains data only and no market commentary.

Condos vs. single-family

Of the 25 closings, 17 were condominiums and eight were single-family homes. Condos sold at a median of $1,040,000 with 64 median days on market. Single-family homes carried a median price of $2,537,500 and sat for a median of 83 days. Condo supply stood at 9.4 months; single-family supply was 7.4 months.

The median monthly condo fee for September sales was $776.

Coolidge Corner holds up

Coolidge Corner led the town with seven sales, a median price of $835,000 and a median of just 23 days on market. It posted the highest above-asking rate among neighborhoods with at least five sales: 28.6%.

Washington Square's five sales carried a median price of $2,500,000, with 20% closing above asking and a median of 64 days on market.

Rising rates add pressure

The slowdown comes as mortgage rates climb. The 30-year fixed rate hit 7.28% on Thursday, Oct. 1, according to Freddie Mac data reported by WSLS. That is the highest level since November 2023 and up from 6.34% a year ago. It was the sixth straight weekly increase.

Across the Boston-Cambridge-Newton metro area, active listings rose 16.1% year over year in September and homes took seven more days to sell, according to Realtor.com. Danielle Hale, Realtor.com's chief economist, said affordability "remains a central constraint as the fall season gets underway."

The Federal Reserve's next interest-rate decision is scheduled for Oct. 27-28.