Fully renovated in 2016, this versatile professional office building is located in Riverhead’s historic, walkable district near Main Street. The energy-efficient property features sound-proofed private offices, a flexible layout, and modern building systems, making it well suited for a wide range of professional, medical, and administrative uses as well as owner-users or investors. The building includes 12 private offices across two floors with multiple waiting areas, a conference room, kitchen facilities, and ADA-compliant restrooms. Separate entrances and exit pathways support privacy and efficient traffic flow. Office suites range from approximately 120–190 square feet and are pre-wired for CAT-5 and Wi-Fi with electronic key-lock access throughout. Upgrades include a 200-amp electrical system, new plumbing, solar panels, a high-efficiency boiler, insulated interior walls, and access to a standing insulated walk-up attic of approximately 1,000 square feet. The first floor is fully wheelchair accessible, while the second floor provides abundant natural light and a private entrance. Ample parking is available with public parking behind the property, across the street, and along the side of the building, with secure gated rear access. The property provides a calm, contemporary professional setting suitable for medical practices, wellness providers, legal or consulting offices, creative studios, or other professional and service-oriented uses seeking a primary location or satellite office.