406 15th Street, Unit M1 — Commercial Medical Office Suite 406 15th St, Unit M1 is a turnkey commercial medical office suite located at the base of 27-residential units in the heart of Park Slope, nestled between South Slope and Windsor Terrace. Set between 7th and 8th Avenues on a high-traffic block, the property sits within a well-established residential and commercial corridor. Located on the lower level of an impeccably maintained elevator building, the space features a professionally built-out, highly segmented layout designed to support efficient, day-to-day medical or professional operations. Compromised of 13 private rooms, including seven treatment rooms, two bathrooms, a dedicated reception and waiting area, lab and storage rooms, and additional support areas that allow for strong operational flow and immediate usability. On-site parking is available for lease as well as optional bike storage. The property benefits from excellent accessibility, located one block from the F/G trains at Prospect Park Station, and is well-suited for medical, wellness, or professional service users seeking a functional, multi-room environment in one of Brooklyn’s strongest and most established submarkets.