New For Lease! Direct Term Available. Brand New Interiors! New Lobby, Cafe Room and Restrooms! Perfect for growing Tech Companies with an open layout, great natural light, private offices, and walking distance to CalTrain. Ultra High speed fiber internet and sever room. 321 Castro has an array of walkable restaurants, coffee shops and lunch options perfect for employees. Parking is directly behind the building for employees commuting and easy access to the rear building entrance just seconds from the car or bike. The front entrance is on the Main Street of downtown and the rear entrance with an elevator is located at the parking lot for two access points.