Monument Realty is making its first push into NoMa, buying a 25,000-square-foot lot on Patterson Street NE while continuing its pursuit of a larger, D.C.-owned parcel next door. Monument and its investment partners, Junius Real Estate Partners and GPC Truss, plan to develop the site with a 310-unit apartment tower and 10,000 square feet of amenity space — rooftop playground, fitness center, pet park. KGD Architecture has been retained to design the building, and Hartman Design Group the interiors.