420 W 4th Charming, Fully Upgraded San Dimas Home with Alley Access & RV Parking! Welcome to this beautifully maintained, turn-key single-story home located on a highly desirable street in the heart of San Dimas. Built in 1965, this 3-bedroom, 1-bathroom residence spans 1, 200 square feet of optimized living space on an expansive 6, 751 square foot lot. Combining classic charm with a massive list of modern, high-ticket upgrades, this property is completely move-in ready. As you step inside you are immediately invited in with the dining and living room featuring original refinished hardwood floors and a cozy brick fireplace. The upgraded kitchen and bathroom feature quartz countertops, beautiful tile, and timeless designs. Other upgrades include a brand-new A/C unit, tankless water heater, newer roof, copper plumbing, and an energy-efficient whole-house fan to dramatically slash summer utility bills. The backyard is perfect for entertaining with a wood-burning fire pit, covered patio, large grass area, mature fruit trees (lemon, lime, tangerine, & avocado), and an external shed. The full drive-through concrete driveway leads all the way from the front yard to the back alley, offering premier RV or boat parking, secured by wood gates. The detached, oversized 2-car garage features convenient washer and electric dryer hookups with an abundance of storage and workspace. This home is truly a gem located in a highly sought after neighborhood with a great school district for families!