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, a new roof (2018), 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.