81400 Amundsen Ave An extraordinary and rare opportunity this is one of the last undeveloped lots in the prestigious Madison Club and the only one of its size and location available. Spanning over an acre and ideally positioned away from the perimeter in the very heart of the community, this expansive homesite is set on one of the most desirable streets, offering the perfect canvas to create a custom dream estate. Available for the property is a complete set of architectural and structural plans, along with 3D renderings, for a warm, contemporary compound thoughtfully designed by Madison's premier luxury developer. The envisioned residence emphasizes seamless indoor-outdoor living, sophisticated materials, and a refined yet welcoming aesthetic that blends effortlessly with the desert landscape. Whether you choose to build as designed or bring your own vision to life, this is a rare opportunity to secure one of the largest remaining lots in this world-class enclave known for its elegance, privacy, and exclusivity.