Nestled in the picturesque Sierra Madre Foothills, 342 Camillo Road--affectionately known as 'The Stone House'--traces its origins to the early 1900s, when Italian stonemasons quarried massive granite boulders from the property to construct the building. Originally serving as a three-bay garage for its first owner's Stanley Steamer automobiles, the structure was purchased in the 1940s by a couple who transformed it over the next decade into a mid-century modern residence. Today, the home stands as a timeless testament to that enduring aesthetic. Offering breathtaking mountain views, an open-concept layout, and expansive glass windows that open in all directions to private patios and gardens, this architectural gem is a rare find. Vaulted ceilings create a seamless flow between the living room, dining area, and kitchen--ideal for both relaxing and entertaining. The living room features a dramatic floor-to-ceiling slate fireplace, perfect for cozy evenings, along with custom built-ins. The spacious kitchen includes a second fireplace, ample storage, and a large island. The primary suite provides a peaceful retreat with serene backyard views and a spacious bathroom featuring a zero-threshold shower. Two additional bedrooms and a hall bath offer flexible space for family, guests, or a home office. A sunroom bathed in natural light--currently serving as a den--adds versatility and warmth to the home's living space. Above it, three windows set beneath wooden beams mark the former garage bays, offering a subtle nod to the home's storied past. Outside, a private oasis awaits. A built-in BBQ, dining area, and fire pit create the perfect setting to enjoy panoramic views of the San Gabriel Mountains. Additional features include updated systems, drought-tolerant landscaping with mature trees and plantings, accessible walkways, solar panels, a Control4 smart home system, Lutron shades, electric car charger, separate laundry room, powder room, keyless entry and intercom, new fencing with a solar-powered gate, and a carport with covered access to the front door. Centrally located near shopping, dining, and major freeways, 342 Camillo Road offers a rare opportunity to own a timeless piece of Southern California's architectural heritage while enjoying a lifestyle that harmoniously blends nature and city living in beautiful Sierra Madre.