The Grandest House on the River
Andalusia Historic House & Gardens
Nicholas Biddle's Greek Revival masterpiece on the Delaware — a National Historic Landmark hiding in plain sight in Bensalem.
Andalusia is the riverfront estate of the Biddle family, anchored by one of the finest Greek Revival houses in America — the columned "Big House" remodeled in the 1830s by architect Thomas U. Walter, who later designed the U.S. Capitol dome, for financier Nicholas Biddle. It is a National Historic Landmark, and it sits, improbably, in Bensalem.
The estate opens its house and grounds to visitors on a scheduled and reserved basis: formal gardens, specimen trees, walking paths, and lawns running down to the Delaware. It is the kind of place people fly to Virginia or the Hudson Valley to see, fifteen minutes from Street Road.
Official website ↗History & Landmarks
The house and the history
Nicholas Biddle — president of the Second Bank of the United States and Andrew Jackson's great adversary in the Bank War — made Andalusia the family seat, and Thomas U. Walter's river-facing colonnade made it an icon of American Greek Revival architecture. The house still holds the family's furnishings, portraits, and library, which is what separates a lived-in landmark from a museum set.
The estate stayed in Biddle hands for two centuries, which is why it survived intact while the river corridor industrialized around it. Touring it is the fastest way to understand what the Delaware's Pennsylvania bank looked like when it was Philadelphia's Gold Coast.
History & Landmarks
The gardens and grounds
The grounds run formal near the house — walled and rose gardens, clipped hedges — then relax into great lawns and old trees along the river. Garden visits pair well with the house tour, and photographers plan around the colonnade light in late afternoon.
Andalusia also anchors a stretch of surviving riverfront estates in lower Bucks, with Pen Ryn and Glen Foerd nearby — together they preserve a chapter of Delaware River history most people have no idea still exists.
Questions People Ask
Andalusia Historic House & Gardens — frequently asked questions
What is Andalusia in Bensalem, PA?
Andalusia is the historic riverfront estate of the Biddle family in Bensalem, Bucks County, PA. Its Greek Revival mansion, remodeled in the 1830s by Thomas U. Walter for financier Nicholas Biddle, is a National Historic Landmark, and the estate offers scheduled tours of the house and gardens.
Can you visit Andalusia?
Yes, but plan ahead — Andalusia is generally open for scheduled guided tours and reserved garden visits rather than walk-ins. The estate also hosts seasonal events on the grounds.
Who was Nicholas Biddle?
Nicholas Biddle (1786–1844) was a Philadelphia financier and president of the Second Bank of the United States, best known for his clash with President Andrew Jackson in the Bank War. Andalusia was his country seat, and his descendants preserved it for two centuries.
Where is Andalusia located?
Andalusia sits on State Road along the Delaware River in Bensalem Township, PA — roughly fifteen minutes from Center City Philadelphia's northern edge and minutes from Neshaminy State Park.
Want Andalusia Historic House & Gardens in your daily life?
I help buyers land in Bensalem and the neighborhoods around it — and I know which streets put places like this in your weekly routine.
