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401 Grand St. Paterson, NJ 07505 | 973-881-4000
"Rich History, Bright Future"

Dey Mansion

Kelly Ruffel
Director of Cultural and Historic Affairs


The Dey Mansion Museum is excited to announce the start of our garden restoration project that will bring back the Dey Mansion gardens and surrounding grounds to their once historic grandeur. Funded by both the NJDEP Green Acres Program and County of Passaic, included in these plans are new paths and walkways; and as we break ground it will be necessary to TEMPORARILY CLOSE the site to the public and suspend our tours during the week.

Beginning Thursday, July 26th, the Dey Mansion will be closed to the public Monday thru Friday. ALL evening and weekend activities/tours will remain as scheduled.

Please check our website or call our offices for updates regarding these closings.


Dey Mansion: 199 Totowa Road, Wayne, NJ 07470

Hours: Wednesday thru Sunday, 10am-4pm

For special event hours and pricing, please call 973-706-6640

The Dey Mansion Washington's Headquarters is a historic house museum, listed on the State and National Register of Historic Places, and has been curated to provide the visitor with an experience of stepping back in time. As you walk through the front door you are transported back to Colonial New Jersey and the home of Col. Theunis Dey in the year 1780, when it served as General George Washington’s Headquarters.

GW Office Dey Hallway - Copy war room

Under the Direction of the Department of Cultural & Historic Affairs, the Museum is dedicated to preserving and interpreting the history of the Dey Family and the important role that their home played as General George Washington’s Headquarters during July, October and November of 1780. Through tours, lectures, and special events the Dey Mansion Museum promotes the exploration of life in Colonial America, the events and people of the American Revolution, and the need for Historic Preservation.

(Dey Mansion Before 1936 Construction / Dey Mansion After 1936 Construction / Dey Mansion Kitchen Add-On)

A full restoration of the Mansion was completed in 2016 however, most of the original wood frames and floors still exist. The Mansion sits on 377 acres within the Preakness Valley Park, with features built onto the property; including a forge, a plantation house, a spring house, and a courtyard in the middle of the three buildings

The Dey Mansion Museum is open year-round for tours, lectures, and other special events. Please visit the Dey Mansion’s website www.deymansion.org for more information.