Villa Calissa Harbour Residences. Luxury living for life on the water! Villa Calissa, a new development in a prime location on the Sebastian River in St.Augustine. These beautifully designed 3 bedroom 2.5 bathrooms will feature everything you need in your new luxury townhome. Only 11 harbor residences located in Villa Calissa, which features coastal architecture with Hardie lap siding and metal roofs. Each home comes with a private access deep water 16 foot boat slip, breathtaking views of the water as well as exquisite interior finishes. Larger boat slips are available.