Rare Development Opportunity in Historic St. Augustine! Two adjacent RG-1 zoned lots totaling approx. 0.55 acres, cleared and ready to build with city water/sewer available. Stunning views of the San Sebastian River, cathedral dome, and the Great Cross. Ideal for multifamily, senior housing, B&B, or professional offices. Includes full set of permitted architectural plans for an elevated 1,900 SF primary residence with a 600 SF detached ADU and 600 SF garage. Lot 29 Florida Ave is approx. 52.5' x 330'; Lot 27A is 52.5' x 137'. Incredible location--walk or bike to Flagler College, historic downtown, restaurants, breweries, and marinas. Income-producing potential in one of Florida's most desirable coastal markets. Zoned RG-1 Medium Density Residential. Don't miss this one-of-a-kind investment opportunity!