In 1912, vaudevillian Frederick Proctor built a duo of Dutch-style Colonial homes for his two daughters in Larchmont Manor. Over 100 years later, they're both being offered for sale simultaneously.

Developed as a summer colony, the Westchester coastal neighborhood, with its storied yacht club and Frederick Law Olmsted-designed Manor Park, was as fashionable then as it was today. The Proctor sisters, and their sister houses, couldn't have been in a better location.

Both 84 (left) and 88 (right) Park Avenue have been extensively renovated and modernized. While the exteriors remain mostly matching, a century's time and contrasting decorating sensibilities of their respective owners reveal two vastly different interior styles.

88's kitchen boasts a center island, concrete counters and Calacatta marble backsplash, along with appliances by Bosch, Sub Zero and Wolf. But 84 is on trend in its own right (see No. 2 on this Forbes list), opting for cabinet-free windowed walls and open shelving.

Both screen porches are as relaxing as they ever were.

The best parts of living in either home will never change.

See more of 84 Park Avenue and 88 Park Avenue