Welcome to 541 Coolidge Drive, a beautifully upgraded 4-bedroom, 3-bathroom plus office/den home tucked away at the end of a quiet cul-de-sac in San Gabriel, adjacent to San Marino. Thoughtfully designed for both comfort and style, this home features a bright and airy upper-level master retreat, a chef's kitchen featuring a Viking stove & double ovens and quartz countertops, and an outdoor area with a built in swim spa perfect for relaxing and entertaining. The 1st floor open floor plan includes 3 large bedrooms, 2 bathrooms, family room, living room, laundry room, and a family style dining room adjacent to the kitchen with hard-wood floors throughout. Each bedroom has built in closets and drawers, while the family room includes built in shelves and cabinets for easy storage. The sliding door off the family room leads to the stunning backyard with two decks for entertaining - one just off the main door with space for an outdoor table and the upper deck which takes you to the built-in swim spa - perfect for exercising, entertaining and enjoying the outdoors! The bright, airy 2nd level master retreat includes hardwood floors, a walk-in closet with a small office space, fireplace, double vanity bathroom with built-in storage, and a viewing deck overlooking the backyard. Unwind in the master spa-like steam shower with built in speakers and enjoy the comfort of the water softener and reverse osmosis system. Adjacent to the master you will find a den/office.  Luxury and efficiency go hand in hand with dual A/C, a whole-house fan, Nest thermostats, and a solar system with battery backup. Smart home features include smart switches, smart door locks, LED outdoor accent lighting for safety and ambiance, while a newly installed main sewer line offers peace of mind. Situated in a highly desirable neighborhood adjacent to San Marino, this home is the perfect combination of modern upgrades and timeless charm. Don't miss the opportunity to make it yours!