Loudoun Mansion

Loudoun Mansion is a Federal-style house in Germantown built with two-story columns and a pink stucco exterior. It sits elevated above Germantown Avenue, set back from the street with fourteen rooms in its original design.

Thomas Armat built the house in 1801 and made a major expansion in 1810. A Greek-style portico was added around 1830, completing the architectural vision of the original owner.

The mansion takes its name from a Virginia county, reflecting a connection to American geography that shaped local identity. The rooms show how a wealthy family lived across different eras, revealing domestic life and tastes from the 1800s onward.

The house sits on Germantown Avenue and is visible from the street, though interior access is limited due to ongoing restoration work. Best viewed from the road to appreciate the elevated location and architectural details from the exterior.

The property sits atop one of Philadelphia's highest Native American mounds, constructed centuries ago. During the Battle of Germantown, wounded soldiers were carried to this elevated site, linking the location to pivotal moments in American military history.