A black frame apartment is a step below a white frame in terms of completion. It usually refers to a unit with the main structural elements completed, such as the foundation, walls, and ceilings, but lacking any finishing, including windows and doors. This type of apartment requires more work and investment from the buyer to complete the unit, as they need to add windows, doors, utilities, interior walls, and other finishing elements.

A white frame apartment is a partially completed unit that has the primary structure in place but lacks interior finishing. This includes the walls, floors, ceilings, and windows, but there might be no interior walls, electrical wiring, plumbing, or finishing touches such as paint, tiles, or flooring. Buyers typically need to invest in the completion of the apartment, including installation of utilities, interior walls, and other finishing elements.

A green frame apartment is a more eco-friendly option in the construction process. These units are designed with energy efficiency and sustainable materials in mind. The term "green frame" may refer to various stages of completion, but the key feature is the focus on environmentally friendly construction methods, materials, and technologies. Buyers of green frame apartments can expect to benefit from reduced energy consumption, lower utility bills, and a smaller environmental footprint.