A new mixed-use development with 129 apartments and 15,750 square feet of retail space at 1300 U St. NW is in the works.

Known as 13/U, the eight-story building developed by the JBG Cos. is being planned for a 2017 occupancy. David M. Schwarz Architects is envisioning the design as a modern version of the neighborhood’s traditional brick apartment buildings.

Sections of the building are set back above the second level to create a series of pavilions for a more interesting façade. In addition, two curved corners frame the building’s entrance on 13th Street and two bay windows frame the central residential entrance on U Street.

Both market-rate and affordable apartments will be available, with features and prices yet to be determined. Building amenities for residents will include a club room, a fitness center and a sundeck. A parking garage will be built underneath the building.

The neighborhood includes dozens of restaurants, bars and shops within walking distance, including the historic Lincoln Theater and the popular 9:30 Club. The U Street/Cardozo Metro station is directly across 13th Street. Seven bus lines also serve the neighborhood.

As part of the approval for the building, JBG provided a $600,000 community benefits package with funds for new recreational fields at Garrison Elementary, a play space at Westminster Place and a new Capital Bikeshare station. The company also is to initiate a business improvement district.

A temporary 264-foot-long mural by six local artists has been installed on the inside wall of the covered sidewalk at the site on U Street. JBG commissioned the work from Words Beats & Life, a nonprofit organization that works to bring positive change through creativity. Students in the group’s summer program generated ideas for the mural, which was painted by local artists.

For more information on 13/U, go to www.13thandU.com.

Michele Lerner is a freelance writer. To pass on a tip or news item, contact us at realestate@washpost.com and put “Town Square” in the subject line.