A rare and extraordinary offering, Oak Trail is an exceptional architectural masterpiece designed by distinguished architect Reginald Johnson on nearly one-acre of expansive grounds in San Marino's prestigious estate district. Crafted in 1916, this legacy English Tudor Revival residence is named for the 16 majestic oak trees that once lined the path to Lacy Park. Step through the formal foyer into a world of timeless elegance & quiet grandeur with paneled walls, high ceilings, hand-carved mahogany doors, leaded-glass windows, rich oak floors & an artisan brick chimney. The formal LR, centered around an exquisite fireplace, flows seamlessly into a light-filled garden room & shaded brick patios. A refined library with a leaded-glass bay window & fireplace offers a serene retreat. The stately DR, expansive butler's pantry & chef's kitchen, make hosting effortless. Upstairs, discover 4BRs in the main family wing, including a gracious primary suite with sitting room & dressing area, plus a private suite of 3BRs off a rear staircase, perfect for guests or offices. Additional amenities include a powder room, laundry room, mudroom, 1,700+sf attic space, 1,400+sf basement & a 4C garage. The expansive grounds feature a rose garden, sprawling lawn & multiple outdoor entertaining areas shaded by mature trees. Oak Trail is a true heirloom estate and a very special opportunity to own & restore a significant piece of Southern California's architectural legacy in a prime estate location!