Sedgeley was a mansion, designed by the architect Benjamin Henry Latrobe, and built on the east banks of the Schuylkill River in Philadelphia, USA, in 1799–1802.

Fisher sold it in 1836 to Isaac S. Loyd, a real estate speculator, who decided to subdivide the house and did not take good care of it, letting it fall into disrepair.

[12] A group of wealthy residents sought to expand the park to include the Sedgeley property, and they organized a fund to help achieve that.

Though, the fund was short of the $70,000 needed, so through use of eminent domain, the city of Philadelphia paid the $45,000 balance and acquired the Sedgeley property in 1857.

It was rescued from demolition and converted to office space in the 1990s by the Fairmount Park Historic Preservation Trust and is currently occupied by Outward Bound.