Plot for sale within the settlement of Kastro, Sifnos, Cyclades, with a valid building permit for the construction of a 102.55 m² two-storey residence (57.01 m² ground floor and 45.54 m² upper floor), allowing works to begin immediately without lengthy procedures. Access is particularly easy, with the possibility for cars, large trucks, and machinery to reach the property, a feature that helps minimize construction costs. The electricity, water supply, sewerage, and telephone networks all run next to the property, facilitating immediate connections. With its south-eastern orientation, the property enjoys views of the sea, the surrounding islands, and the nearby hills. Its location is highly privileged. It is situated next to the square and at the beginning of the pedestrian street of Kastro, just 20 m from the bus stop, 300 m from Seralia Beach, and approximately 300 m from the municipal parking area. In the surrounding area there are shops, cafés, bars, tavernas, and fine dining restaurants. There is also the option to purchase it together with property ID 2335 (located next door), which is an unfinished two-storey building of 73.34 m² requiring completion, offering a particularly attractive development prospect either for private use or for tourist exploitation.