About us. The two directors of Gransol Properties have over 50 years of combined experience in selling real estate on the Costa Blanca region of Spain. Their offices are based in the centre of Calpe, and they offer a wide selection of properties all along the Northern Costa Blanca region, including Altea, Benidorm, Calpe, Moraira, Javea, Denia and the Jalon & Orba Valleys.So, if you are seeking Spanish properties, a home, holiday villa or apartment in the sun, then look no further, we look forward to guiding you before, during and after your purchase. GRAN SOL PROPERTIES (EUROPE) S.L. Edificio Apolo 1, Calle Corbeta 5B 03710 Calpe / Calp ( Alicante) 629618793 965835468 About us.