A house that sold for $12 million tops the list of the most expensive residential real estate sales in Boulder in the past week.

The area saw a total of 17 residential real estate sales during the past week, averaging $2 million. The average price per square foot was $345.

The prices in the list below include real estate sales where the title was recorded during the week of Dec. 8 even if the property may have been sold earlier.

10. $856K, single-family residence at 2595 Juniper Ave.

A sale has been finalized for a single-family home at 2595 Juniper Ave. in Boulder. The price was $856,000. The house was built in 1973 and the living area totals 1,284 square feet. The price per square foot ended up at $667. The house features 3 bedrooms and 2 bathrooms.

9. $900K, detached house at 3345 Folsom Street

The sale of the single-family house at 3345 Folsom Street in Boulder, has been finalized. The price was $900,000. It was built in 1952. The house features 2 bedrooms and 1 bathroom.

8. $915K, condominium at 2885 Springdale Lane

A 1,490-square-foot condominium at 2885 Springdale Lane in Boulder, has been sold. The total purchase price was $915,000, $614 per square foot. The condominium was built in 2014. The condominium features 3 bedrooms and 4 bathrooms.

7. $920K, detached house at 2190 Dartmouth Ave.

A 1,215-square-foot single-family residence at 2190 Dartmouth Ave. in Boulder has been sold. The price was $920,000, $757 per square foot. The house was built in 1959. The house features 2 bedrooms and 2 bathrooms.

6. $1 million, condominium at 1707 Walnut Street APT306

The condominium at 1707 Walnut Street APT306 in Boulder has new owners. The price was $1,035,000. The condominium was built in 2014 and has a living area of 900 square feet. The price per square foot was $1,150. The condominium features 2 bedrooms and 2 bathrooms.

5. $1.5 million, single-family house at 1020 10th Street

The property at 1020 10th Street in Boulder has new owners. The price was $1,510,000. The single-family home was built in 1908 and has a living area of 2,132 square feet. The price per square foot was $708. The house features 4 bedrooms and 3 bathrooms.

4. $2.5 million, single-family residence at 2905 Stanford Ave.

The sale of the single-family house at 2905 Stanford Ave. in Boulder has been finalized. The price was $2,495,000. It was built in 1963 and has a living area of 1,582 square feet. The price per square foot was $1,577. The house features 4 bedrooms and 2 bathrooms.

3. $4.2 million, single-family home at 1445 Moss Rock Place

A single-family home at 1445 Moss Rock Place in Boulder, has been sold. The price was $4,200,000. The house was built in 1973 and has a living area of 2,998 square feet. The price per square foot was $1,401. The house features 4 bedrooms and 4 bathrooms.

2. $4.7 million, multi family at 1080 13th Street

The multi family at 1080 13th Street in Boulder has new owners. The price was $4,700,000. The house was built in 1900 and has a living area of 3,461 square feet. The price per square foot was $1,358. The house features 13 bedrooms and 6 bathrooms.

1. $12 million, multi family at 2985 Aurora Ave.

The sale of the multi family at 2985 Aurora Ave. in Boulder has been finalized. The price was $12,000,000. It was built in 1965 and has a living area of 73,152 square feet. The price per square foot was $164. The house features 192 bedrooms and 192 bathrooms.