146 Railroad Avenue Build your business at this classic red brick office building, ideally located in one of Sayville's most desirable commercial corridors just steps from Main Street and the Sayville train station. This 2-story property offers approximately 6, 400 square feet across 3 units plus a basement, creating excellent flexibility to lease units individually for diversified rental income, occupy part of the building while generating income from the rest, or combine the space for a larger single-user office. Recent upgrades include brand-new bathrooms, a modern kitchen, and new solar power, supporting long-term efficiency and lower operating costs. With its commuter-friendly location, strong visibility, and adaptable layout, this is a rare opportunity for investors and owner-users alike to secure a well-positioned office asset in the heart of Sayville.