Threshold Arts

Denver's Union Station: an inspiration for our indoor park


Threshold Arts, a nonprofit arts organization, holds a master lease with Castle Community, LLC for a large portion of the building, and is responsible for leasing the Creative Studios, oversight of the programming of the Castle Commons, Community Studio, Turret Gallery, and Event Hall.

Castle Community welcomes artists, creative professionals, entrepreneurs, and more. Threshold Arts offers memberships to creative individuals and small organizations which include options for a studio space on the second floor, priority access to larger shared studio space, classroom, and gallery spaces, shared artistic and professional resources, and other membership perks.

Artist Opportunities


Threshold is seeking proposals for a variety of art installations in public spaces throughout the building. Download the RPF and submit your proposal today!


Creative Studios

Private studio spaces line the North side of the second floor. Castle Community will offer these studios for rent, available exclusively to Threshold Arts members. The spaces are constructed with glass walls and doors to allow maximum natural light to pass through into the Commons. The use of glass will also allow for the public to see into the studios and interact with working artists while in the Castle Community Commons. 

Expectations of studio tenants:

  • All tenants must be a current member of Threshold Arts (included in monthly rent)

  • In collaboration with Threshold Arts, participate in the programming of the Castle Community Commons

  • Participate in regularly scheduled "open studio" programming, allowing for public interaction while working in your space (10 hours weekly average)

  • Commit to actively working in your studio for a minimum of 20 hours/week

  • Host a monthly community engagement event (class or workshop, field trip, studio open house, artist meet-up or gathering, collaborative art activity, artist salon, reading, musical performance, etc...) at the Castle.

TURRET Gallery

Threshold Arts will work together to program the art gallery (approximately 600 square feet) on the Northeast side of the third floor. The gallery space will have multiple uses. It will be up to the Threshold members, board, and staff to determine the use of the space, including but not limited to gallery exhibitions (Threshold member art, local art, private collections, traveling exhibits, etc…), lectures, classes, and workshops. The gallery will also be available for use as a unique venue for intimate meetings, private dining, and small events. 

Community studio

The Community Studio is located on the Southeast corner of the third floor. This space is available for community members to use free of charge, based on availability. Threshold members and Castle Community tenants will have priority in booking this space for collaborative work, classes, workshops, artist lectures, author events, etc…

Threshold Arts community Resources

The Threshold Arts community resources encompass a variety of benefits to its members. Threshold staff will provide ongoing professional development for members, including portfolio development, marketing support, grant-writing assistance, curatorial guidance, publishing services. The Community Studio will serve as a space for artists to work collaboratively or explore new methods of art making in a variety of classes and workshops. The Southwest corner of the second floor houses a darkroom for traditional photography methods and will be available for use exclusively to Threshold members. As Threshold membership grows, the members themselves will become resources for one another, offering new perspectives, opportunity for dialogue and critical reviews, creating a thriving arts community, working together to support one another.

the Art Store

The Art Store will offer an opportunity for Threshold members to sell their work (on consignment) in a retail space. Additional items for sale would include locally-made goods, artist-made merchandise and gift items, a limited selection of art materials, and a space for local makers to present a pop-up retail showcase. The Art Store will also feature an “art bar” where patrons can create an original work of art with supplied materials and instruction from staff.

An unlimited inventory of art materials will be available for purchase via special order, with a significant discount offered to Threshold members and students.