A house that sold for $3.1 million tops the list of the most expensive residential real estate sales in Boulder in the past week.

In total, 37 residential real estate sales were recorded in the area during the past week, with an average price of $979,202. The average price per square foot was $648.

The prices in the list below concern real estate sales where the title was recorded during the week of July 14 even if the property may have been sold earlier.

10. $1.1 million, single-family residence at 3917 Promontory Court

The property at 3917 Promontory Court in Boulder has new owners. The price was $1,050,000. The single-family home was built in 1988 and has a living area of 2,735 square feet. The price per square foot is $384.

9. $1.1 million, townhouse at 434 Morrison Alley

The sale of the townhouse at 434 Morrison Alley, Boulder, has been finalized. The price was $1,056,500, and the new owners took over the house in June. The house was built in 1977 and has a living area of 1,188 square feet. The price per square foot was $889.

8. $1.1 million, single-family house at 279 Forrest Lane

A sale has been finalized for the detached house at 279 Forrest Lane in Boulder. The price was $1,100,000 and the new owners took over the house in June. It was built in 1974 and the living area totals 1,480 square feet. The price per square foot ended up at $743.

7. $1.2 million, single-family home at 325 Colgate Street

The sale of the single-family home at 325 Colgate Street in Boulder has been finalized. The price was $1,165,000, and the new owners took over the house in June. It was built in 1957 and has a living area of 1,706 square feet. The price per square foot was $683.

6. $1.2 million, single-family residence at 7240 Clubhouse Road

The property at 7240 Clubhouse Road in Boulder has new owners. The price was $1,235,000. The house was built in 1979 and has a living area of 2,792 square feet. The price per square foot is $442.

5. $1.3 million, single-family home at 3760 Britting Ave.

A 1,723-square-foot single-family residence at 3760 Britting Ave. in Boulder has been sold. The transfer of ownership was settled in June and the total purchase price was $1,335,000, $775 per square foot. The house was built in 1962.

4. $1.9 million, single-family house at 2201 Juniper Court

A 2,026-square-foot detached house at 2201 Juniper Court, Boulder, has been sold. The transfer of ownership was settled in June and the total purchase price was $1,890,000, $933 per square foot. The house was built in 1977.

3. $1.9 million, single-family house at 1540 Sumac Ave.

A 2,465-square-foot single-family home at 1540 Sumac Ave. in Boulder has been sold. The transfer of ownership was settled in June and the total purchase price was $1,930,000, $783 per square foot. The house was built in 1989.

2. $3 million, single-family residence at 7323 Old Post Road

The property at 7323 Old Post Road in Boulder has new owners. The price was $2,995,000. The detached house was built in 1971 and has a living area of 3,143 square feet. The price per square foot is $953.

1. $3.1 million, single-family home at 2700 15th Street

The sale of the single-family home at 2700 15th Street, Boulder, has been finalized. The price was $3,130,000, and the house changed hands in June. The house was built in 1955 and has a living area of 3,198 square feet. The price per square foot was $979.