521 12th Street Below Replacement Cost and Immediate Income!! Turn-Key Duplex | Strong 9%+ Cap Potential | Rent Growth Opportunity – $38, 400 annual gross rental income with Both sides rented at $1, 600 per month with market rate between $1800-$2000+. Modern design, durable finishes, and low-maintenance layouts, this property is built to perform and attract long-term tenants. Each unit features 3 bedrooms, 2 full baths, spacious open-concept living, and contemporary upgrades that keep vacancy rates low. Strong tenant demand in San Leon, combined with proximity to Galveston Bay, Kemah Boardwalk, and quick access to Houston, makes this an ideal buy-and-hold investment. Whether you’re scaling your portfolio or looking for a solid hedge against inflation, this duplex delivers immediate cash flow, appreciation potential, and zero guesswork. Properties this clean, occupied, and profitable don’t last long—secure it today!