The Sewall House is located on the north side of Crystal Road (Maine State Route 159) just west of the Island Falls Post Office in the village center.
It is a 2-1/2 story wood frame structure, three bays wide, with a side gable roof, twin interior chimneys, and clapboard siding.
A single-story hip-roofed porch extends across the south-facing front and around the right side, supported by square posts.
The front entrance is flanked by sidelight windows and pilasters.
A two-bay two-story garage extends to the right, connecting the main house to a carriage barn.

One of the first settlers of the town of Island Falls was Levi Sewall, who arrived in 1842.
His tenth child, William Wingate Sewall, was born in 1845, and was the community's first native-born resident.
The younger Sewall made his home in the town for his entire life, working on Maine's logging drives until he was 75.
This house was built for Sewall by Osgood Pingree, a neighbor.
Sewall's house was a well-known stop for hunters who worked and recreated in the Maine woods.
In 1872 Theodore Roosevelt, then a somewhat sickly young man, paid a visit, and established a friendship with Sewall that lasted until Roosevelt's death in 1919.
Roosevelt last visited Sewall in Maine in 1878, but invited him on one of is expeditions into the Dakota Territory in 1884.

The house remains in the hands of Sewall's descendants, and is now operated as a yoga retreat center.
The Sewall House is located on the north side of Crystal Road (Maine State Route 159) just west of the Island Falls Post Office in the village center. It is a 2-1/2 story wood frame structure, three bays wide, with a side gable roof, twin interior chimneys, and clapboard siding. A single-story hip-roofed porch extends across the south-facing front and around the right side, supported by square posts. The front entrance is flanked by sidelight windows and pilasters. A two-bay two-story garage extends to the right, connecting the main house to a carriage barn.
One of the first settlers of the town of Island Falls was Levi Sewall, who arrived in 1842. His tenth child, William Wingate Sewall, was born in 1845, and was the community's first native-born resident. The younger Sewall made his home in the town for his entire life, working on Maine's logging drives until he was 75. This house was built for Sewall by Osgood Pingree, a neighbor. Sewall's house was a well-known stop for hunters who worked and recreated in the Maine woods. In 1872 Theodore Roosevelt, then a somewhat sickly young man, paid a visit, and established a friendship with Sewall that lasted until Roosevelt's death in 1919. Roosevelt last visited Sewall in Maine in 1878, but invited him on one of is expeditions into the Dakota Territory in 1884.
The house remains in the hands of Sewall's descendants, and is now operated as a yoga retreat center.
William Sewall House