525 Sinclaire Ave Unique opportunity to lay hands on this 20' x 100' virgin land, on a dead end street, in the heart of most quiet neighborhood of Staten Island. Residential vacant lot. Build your dream or keep it for the future on this ever growing S. I. property market. Seek advice from your architect regarding any construction-related inquiries. Convenient access to all local roads and expressways. Proximity to all local transportation options and shopping facilities. Submit your offer. This opportunity will not remain available for long.