The John Rowland Mansion was built in 1855 by Alta California settler John Rowland I. In 1973, it was added to the National Register of Historic Places by the National Park Service – United States Department of the Interior for its architectural and cultural significance. The mansion was built with original Mullally bricks in the Greek Revival Style on what was a 48,790 acre rancho formerly inhabited by the Kizh nation. Embodying California’s early history, the Rowland Mansion speaks of Western pioneer tales and is home to 19th and 20th century artifacts.

In 2024, the alternative preservation organization House Museum partnered with the La Puente Valley Historical Society to install 11 site-specific artworks by David Horvitz, Zara Schuster, Terremoto Landscape, Evan Curtis Charles Hall, and Emily Barker. The artworks include readymade sculptures, accessibility interventions, and the re-introduction of native Southern California Black Walnut Trees (Juglans Californicas) to the historic landmark.