Build Your Dream Home – Rare Residential Lot Opportunity. Exceptional opportunity to purchase a 6,250 sq ft residential lot at 394 Appian Way in Union City. Vacant buildable parcels in established Bay Area neighborhoods are increasingly rare. This property offers the potential to design and build approximately a 2,800–4,000 sq ft custom residence (buyer to verify with city planning and zoning). Ideal opportunity for a builder, developer, investor, or owner-builder looking to create a new custom home in a desirable East Bay location. Imagine a thoughtfully designed residence featuring open-concept living spaces, modern architecture, and indoor-outdoor California living tailored to your lifestyle. Conveniently located near parks, shopping, schools, and major commuter routes serving Silicon Valley and the greater East Bay.