Washington Street Mills

1 Washington Street,
Dover, NH 03820


Office Hours

Please contact the management office at 603-749-3355 to inquire about available space. Showings are by appointment. We look forward to introducing you to the Washington Street Mill.

“The Washington Street Mill is a good place to operate a business. The management and staff are responsive and friendly, the building is well maintained, and the other tenants are pleasant to associate with.”

“Originally I rented from Chinburg Properties for the price. Over the last 8 years I have developed an appreciation for the diversity of the businesses and tenants located on the property. More often than not I find myself giving my clients tours and history lessons about the building on the walk to and from my office. I also promote the merits of many of the businesses here. I would urge any start-ups or smaller businesses to look at a Chinburg property before signing a lease elsewhere. ”

“The Chinburg team goes above and beyond the norm. They are the standard for home and office. The front office and maintenance team are available almost around the clock and are super friendly and pay attention to every detail! Keep on being ROCKSTARS! ”

“The Washington Street Mills is perfect for a startup or small business. The spaces are lovely and unique, and the mills are a wonderfully eclectic environment with their mix of artists, manufacturing, bakers and businesses of all types. It's a true community, and lovely to be right on the river in a historic mill!”

Have you always wanted to work in a mill environment? The Mills attract all sorts of eclectic business and provide a vibrant working community. At the Washington Street Mill you will find almost 100 different businesses doing interesting work inspired by the surroundings. Situated in downtown Dover along the Cocheco River, the mill spaces generally have high ceilings, exposed brick, and a strong sense of history.  Enjoy the many benefits of being part of the Washington Street Mills working community. Here you will find business, arts and culture.


  • Multiple eateries
  • Common area kitchens
  • Loading dock
  • Freight and passenger elevators
  • Conference Room
  • Many with wood floors
  • Build to suit options
  • Eclectic mix of businesses
  • Option of views of the River
  • Close to Henry Law Park, Children’s Museum, services
  • In the middle of the downtown
  • Close to public transportation including Amtrak



The Washington Street Mills Business & Cultural Center is a vibrant community of businesses and artists. Together under one roof are offices, restaurants, manufacturers, retail stores, a range of service providers, nonprofits, and an artists’ colony, complete with gallery. In former years, these mills have been known as the Clarostat Building and One Washington Center. Today, the historic mills are once again alive with the sound of commerce—not the textile industry of old—but an exciting and diverse blend of creative and talented entrepreneurs. There is even an award winning restaurant run by a James Beard nominated chef. Visit the Washington Street Mills, and discover the goods and services available, incredible artwork, and the beauty of these restored buildings. Find your own place in today’s mill.