Rarely does a property of such architectural pedigree and meticulous execution come to market. This 1957 William Krisel original, built by the legendary Alexander Construction Company, stands as a masterclass in restoration within the highly coveted Twin Palms neighborhood. As one of the neighborhood's original model homes, this specific residence is a celebrated icon often cited in Palm Springs architectural magazines and prestigious coffee table books. Every inch of this estate has been reimagined, from the hand-poured Terrazzo flooring and smooth-finish walls to the bespoke vanities and handmade tiles that define its custom interior. The home's historic soul is preserved through its iconic post-and-beam construction, original rock façade, and dramatic stone fireplace, all while being elevated by high-end appliances, updated windows, and discreet track lighting. Integrated for the modern lifestyle, the residence features full smart-home capabilities and a comprehensive security system for around-the-clock peace of mind. The undisputed crown jewel of the property is the fully permitted, sunken ADU—a brilliant architectural feat designed to remain invisible from the street to protect the home's classic mid-century profile. This seamless extension of the primary suite offers a complete kitchenette, living space, and office, opening onto a backyard oasis that features a new pool, hot tub, and tanning deck. Framed by Krisel-designed landscaping, the grounds are further enhanced by custom-lit pathways, a modern fire pit, an outdoor shower, and the sustainable luxury of fully owned solar. Adding to its exceptional value, the property benefits from the Mills Act, providing significant property tax savings for the steward of this historic treasure. This is a rare opportunity to own a polished piece of Palm Springs history, where vintage modernism meets unrivaled contemporary luxury.