The top 10 most expensive homes for sale in Boston as of July 15 include a penthouse, a Back Bay mansion and a townhouse with eight fireplaces.

All properties are listed within the city of Boston.

1. 55 Commonwealth Ave.

$38,000,000

Listed by Antonio Khoury of SERHANT.

2. 1 Dalton St. #5801/5802

$33,000,000

Listed by Michael Harper of Coldwell Banker Realty Boston

3. 129 Commonwealth Ave.

$21,950,000

Listed by Jeannemarie Conley of Compass

4. 2 Commonwealth Ave. Ph 3-4

$19,500,000

Listed by Tracy Campion of Campion & Company Fine Homes Real Estate

5. 4 Gloucester St.

$18,885,000

Listed by Maggie Gold Seelig of MGS Group Real Estate

6. 1 Dalton St. #4602

$18,500,000

Listed by Maggie Gold Seelig of MGS Group Real Estate

7. 401 Beacon St.

$18,500,000

Listed by Collin Sullivan of William Raveis Real Estate & Home Services

8. 6 Newbury St. Unit 501-502

$17,250,000

Maggie Gold Seelig of MGS Group Real Estate

9. 1 Dalton St. #5802

$17,200,000

Listed by Michael Harper of Coldwell Banker Realty Boston

10. 2 Commonwealth Ave. Unit 11BCD

$17,000,000

Listed by Tracy Campion of Campion & Company Fine Homes Real Estate

All listing data obtained from Redfin.