Plot for sale with an approved architectural project and building permit included, with an extensive surface area of 75,235. 36 m² (according to topographical measurement), located in the scenic and private rural paraje of Son Danús in Santanyí, Mallorca. The plot features a unique layout and distinct natural characteristics: On one hand, there is an expansive architectural Basic Project drafted in May 2023 for a grand detached country house and pool. The planned property features a substantial total built area of approximately 584.90 m² across three levels (basement, ground floor, and upper floor), incorporating a massive 181 m² garage, large entertainment zones, multiple porches, and a 35 m² swimming pool. On the other hand, the land is visually enhanced by a remarkable unique element: a registered natural cave within its boundaries, located near the proposed building site. Legally, the estate is currently held in joint ownership, is free of any financial encumbrances, and only maintains a standard right-of-way servitude for adjacent plots. Overall, this represents an exceptional investment opportunity for those seeking a massive piece of private land to build a custom estate of grand proportions, combining extreme privacy with close proximity to the coast and beaches. A compelling option for developers looking to execute a large-scale architectural country project with unique natural landscape features. Overall, this represents a unique investment opportunity, both for its versatility of uses and its prime location, offered at a price of €1000.000.