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

The Mill is pleased to announce the completion of a recent expansion at its flagship coworking space at Market West, 221 W Tenth Street, Wilmington, DE 19801. 

The 38,000 SF expansion makes The Mill one of the largest coworking spaces in the Greater Philadelphia market, achieving a significant milestone for the ongoing office to mixed-use conversion of the former Nemours Building now known as Market West, with its recent expansion and growth over the years, boasting 104,700 SF of coworking space at Market West, thus making it one of the largest traditional coworking spaces in a single location in the Philadelphia region. 

Joined by elected officials, project partners, and members, The Mill celebrated a ribbon cutting ceremony for the new space on Tuesday, February 13th. Following remarks from 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, guests enjoyed tours of the new space and tested out the new amenity spaces.

The Mill expansion to the third floor includes an additional 30+ furnished offices of various sizes ranging from a single workspace to a 5,500 SF suite. The third-floor space also adds new amenities to accommodate the changing workforce, such as outdoor terraces, a video and audio podcasting suite in partnership with Studio Charter, and wellness spaces like the treadmill and maternity suites. New community spaces offer recreational activities such as shuffleboard, foosball, and cornhole as well as a multi-purpose party room that can accommodate up to 30 people. A glass interior stairwell now connects the third and fourth floors so members can take advantage of existing amenities and conference rooms as well.

The Mill first opened at Market West in April 2016, occupying 13,000 SF on the fourth floor. Since then, The Mill also took over management of the 221-seat auditorium at Theater N that shows arthouse films weekly and can be rented by Mill members for meetings and events utilizing the state-of-the-art digital projection and sound system.

The Mill manages a second suburban location at The Concord off Silverside Rd in Wilmington, which opened in January 2020. The Mill at The Concord features a 20,000 SF indoor/outdoor space with 32 offices and community space. In addition to its Wilmington locations, The Mill plans to expand further south with a new location in Seaford, Delaware, at The Nylon Capital Center by 2025.

“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.

The Mill expansion shows confidence in the coworking sector as companies rethink traditional office space in the wake of COVID-19. The flexibility that coworking provides is attractive not only to startups and remote workers, but also more established businesses that are looking for more out of the box solutions to bring associates “back to work”.

“When we looked for a location for the Delaware Prosperity Partnership offices, The Mill offered us a flexible spot that allowed DPP to project a polished presence to our customers and partners as well as being proximate to the entrepreneurial vibe and activity that Mill members create. When we had the chance to shift to the new third-floor portion of The Mill, doing so was a no-brainer. The space’s well-designed, sleek feel conveys a positive liveliness and image, contributing toward our team achieving its goal of growing the state’s economy.” — Kurt Foreman, President & CEO, Delaware Prosperity Partnership

The Mill is amazing! A lot of cool companies reside here. Most importantly, it’s just what we need to move fast. We’re investing our time into building this company, not selecting, building out, and furnishing an office. That was all just waiting for us at The Mill,” said Roger Clappe of WhipFlip. “In addition, the resources provided here and the excellent staff are an asset to a young, growing company. There is insight and access to several avenues via the Mill’s reach within the community.”

The Mill expansion also marks a significant milestone in the overall office to mixed-use conversion of the former Nemours Building to Market West by owners the Buccini Pollin Group. The building is undergoing a $100 million mixed-use redevelopment that will allow future tenants to live, work, and play all within the heart of Downtown Wilmington. Market West highlights the industry trend of converting underutilized and vacant office space to mixed-use in order to recover the vitality of downtown districts in the post-COVID environment. Rather than demolish the property, the redevelopment of the Nemours building returns vibrancy to a historic asset and introduces hundreds of 24/7 residents and visitors to an area that was formerly only occupied between the hours of 9am and 5pm by the corporate workforce. From destination dining, live entertainment and outdoor activations to luxury accommodations, convenient parking, and modern workspaces for both startups, institutions and large corporations, Market West brings living, working, and enjoying together for a new chapter in the core of the city.

“The Mill is the embodiment of what we are trying to do here at Market West. By bringing together businesses of all sizes and industries in highly amenitized spaces that extend beyond the office walls, we can attract a skilled and innovative workforce to downtown Wilmington,” said Chris Buccini, Founder of the Buccini Pollin Group. “I’m so proud of Rob Herrera and the entire Mill team, who have continued to prove that coworking is more than a trend, but rather an exciting workplace solution that appeals to both start ups and more established firms.”

The Mill is currently offering move-in specials on a limited number of offices on the third floor. If you’re interested in leasing space, please click here:

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

About The Mill: The Mill creates a dynamic ecosystem, fostering innovation and collaboration among diverse professionals. The Mill opened in April of 2016 at the Nemours Building in Downtown Wilmington, now Market West, and encompasses 104,700 square feet across multiple floors. In 2020, a 20,000 square-foot addition was made at Concord Plaza, followed by plans to add another 20,000 square feet at The Nylon Capital Center in Seaford by 2025, led by Ninth Street Development Company (9SDC).