The Mill Expands: New Indoor and Outdoor Spaces in Downtown Wilmington, DE

The Mill, located at Market West, 221 W Tenth Street, Wilmington, DE 19801, has recently completed a significant expansion of its flagship coworking space. This expansion, totaling 38,000 square feet, solidifies The Mill’s position as one of the largest coworking spaces in the Greater Philadelphia market. With this addition, Market West now boasts a total of 104,700 square feet of coworking space, making it one of the largest traditional coworking spaces in the Philadelphia region.

The expansion project was celebrated with a ribbon-cutting ceremony on February 13th, attended by elected officials, project partners, and members. Notable speakers included Governor John Carney, New Castle County Executive Matt Meyer, City of Wilmington Mayor Mike Purzycki, Rob Herrera (Founder of The Mill), and Chris Buccini (Founder of Buccini Pollin Group), among others. Guests had the opportunity to tour the new space and experience its amenities firsthand.

The third-floor expansion introduces over 30 furnished offices of varying sizes, ranging from individual workspaces to a 5,500 square foot suite. Additionally, new amenities cater to the evolving needs of the workforce, including outdoor terraces, a podcasting suite in partnership with Studio Charter, and wellness spaces such as treadmill and maternity suites. Community spaces offer recreational activities like shuffleboard, foosball, and cornhole, along with a multi-purpose party room. A glass interior stairwell now connects the third and fourth floors, enhancing accessibility for members.

Since its inception in April 2016 with 13,000 square feet on the fourth floor, The Mill has expanded its presence, managing the 221-seat auditorium at Theater N and opening a second location at The Concord in January 2020. Plans for further expansion include a new location in Seaford, Delaware, at The Nylon Capital Center by 2025.

The Mill’s expansion reflects confidence in the coworking sector, particularly as companies reconsider traditional office setups post-COVID-19. Flexible coworking spaces like The Mill appeal to startups, remote workers, and established businesses seeking innovative workplace solutions.

Testimonials from tenants highlight the benefits of coworking, emphasizing the convenience, resources, and supportive community provided by The Mill. The expansion also contributes to the broader revitalization efforts of Market West, transforming underutilized office space into vibrant mixed-use environments.

“It’s remarkable to reflect on our journey from The Mill’s humble beginnings, occupying just 13,000 square feet on the fourth floor in 2016, to our current standing with expansions in the suburbs like the Concord Plaza, and now the third floor. We’re excited for what we’re planning in Seaford and beyond. It has been a privilege having a front row seat over the years watching some of the state’s most exciting startups and small businesses grow. It’s reminiscent of witnessing the evolution of a city, which is precisely what I envision for a thriving co-working space – filled with diverse businesses, essential amenities, and ample opportunities for businesses to grow and adapt over time.”— Robert Herrera, Founder of The Mill, contemplating the expansion of The Mill beyond the third floor.

Currently, The Mill is offering move-in specials for a limited number of offices on the third floor, further incentivizing businesses to join its dynamic coworking community.

For leasing inquiries, visit: The Mill – Move-In Specials.

For more information or to book a tour, please visit or contact

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