A condo that sold for $1.6 million tops the list of the most expensive residential real estate sales in Boulder in the past week.

In total, 13 residential real estate sales were recorded in the area during the past week, with an average price of $1.2 million. The average price per square foot was $697.

The prices in the list below include real estate sales where the title was recorded during the week of Oct. 20 even if the property may have been sold earlier.

10. $599K, condominium at 2938 Kalmia Ave. APT27

The sale of the condominium at 2938 Kalmia Ave. APT27 in Boulder has been finalized. The price was $599,000. It was built in 1985 and has a living area of 1,228 square feet. The price per square foot was $488. The condominium features 2 bedrooms and 2 bathrooms.

9. $830K, condominium at 3825 Northbrook Drive #18

The condominium at 3825 Northbrook Drive #18 in Boulder has new owners. The price was $830,000. The condominium was built in 1984 and has a living area of 1,548 square feet. The price per square foot was $536. The condominium features 3 bedrooms and 2 bathrooms.

8. $950K, single-family house at 1110 Hartford Drive

The sale of the single-family residence at 1110 Hartford Drive in Boulder, has been finalized. The price was $950,000. It was built in 1962. The house features 3 bedrooms and 2 bathrooms.

7. $989K, single-family home at 4294 Graham Court

A 1,612-square-foot detached house at 4294 Graham Court in Boulder has been sold. The price was $989,000, $614 per square foot. The house was built in 1960. The house features 4 bedrooms and 2 bathrooms.

6. $1.1 million, single-family home at 680 Grape Ave.

The property at 680 Grape Ave. in Boulder has new owners. The price was $1,100,000. The single-family house was built in 1979 and has a living area of 1,708 square feet. The price per square foot was $644. The house features 5 bedrooms and 3 bathrooms.

5. $1.1 million, detached house at 562 Blackhawk Road

A detached house at 562 Blackhawk Road in Boulder, has been sold. The price was $1,140,000. The house was built in 1975 and has a living area of 1,556 square feet. The price per square foot was $733. The house features 4 bedrooms and 3 bathrooms.

4. $1.5 million, single-family residence at 7405 Augusta Drive

A 3,039-square-foot single-family residence at 7405 Augusta Drive in Boulder, has been sold. The total purchase price was $1,490,000, $490 per square foot. The house was built in 1993. The house features 5 bedrooms and 4 bathrooms.

3. $1.5 million, single-family house at 2221 95th Street

A sale has been finalized for a single-family home at 2221 95th Street in Boulder. The price was $1,517,000. The house was built in 1973 and the living area totals 1,309 square feet. The price per square foot ended up at $1,159. The house features 2 bedrooms and 3 bathrooms.

2. $1.6 million, detached house at 2790 University Heights Ave.

A 2,148-square-foot detached house at 2790 University Heights Ave. in Boulder has been sold. The price was $1,575,000, $733 per square foot. The house was built in 1956. The house features 3 bedrooms and 2 bathrooms.

1. $1.6 million, condominium at 224 Arapahoe Ave.

The sale of the condominium at 224 Arapahoe Ave. in Boulder has been finalized. The price was $1,595,000. It was built in 2013 and has a living area of 1,733 square feet. The price per square foot was $920. The condominium features 2 bedrooms and 3 bathrooms.