Welcome home to your own private Hillside estate! Nestled under the oak trees just above downtown Mill Valley, 144 Hillside Ave has it all! Beautifully and timelessly updated 4 bedroom / 4.5 bath craftsman complete with a 1 bedroom / 1 bath ADU. Beautifully landscaped, large, private 12,600+ sq ft lot on the sunny side of Mill Valley. Bright, light-filled, open kitchen with Wolf range, stainless steel appliances, quartz countertops, and green garden views through every window. Grandiose living room boasts high-vaulted wood beam ceiling, black soapstone fireplace, and wide-plank oak floors. Soak in the lush greenery and treetop valley views from the serenity of the primary suite, also boasting high-vaulted ceilings, radiant bathroom floor heat, and its own balcony overlooking the large flat lawn, city skyline views, kids playhouse, swing set, bocci ball, plunge pool + more! This private paradise is just a quick convenient 5 minute walk to downtown via the "Steps, Lanes & Paths", accessible through 2 backyard gates. Enjoy all the peace & privacy of a Hillside home, with easy access, 4 car parking, and ideally located just blocks from great schools, restaurants, music venues and everything Mill Valley has to offer. Truly a one-of-a-kind, dream home!