This rare duplex, designed by award-winning architect David J. Witmer, AIA – best known as the chief architect of the Pentagon in Washington, D.C. – is located in Belmont Square, a charming Westlake enclave near Historic Filipinotown (HiFi), Echo Park, MacArthur Park, and DTLA. Built in 1924, the complex consists of thirty-nine parcels, each featuring a duplex and a garden area. Blending East Coast-style row home architecture with minimal Art Deco influences and American Craftsman details, this property offers timeless character and thoughtful design. The owner-occupied upper unit is a meticulously upgraded 1BR/1BA featuring bamboo and marble flooring, stained-glass windows in the kitchen and bathroom, and a Mid-Century Modern fireplace with custom tilework in the living room overlooking a tree-lined street. Additional enhancements include hand-painted designer wallpaper, an upgraded kitchen with a built-in breakfast table, and a hallway lined with open shelving that maximizes natural light and space. A Dutch door in the kitchen leads to a small, private balcony. The lower level houses a similarly sized 1BR/1BA unit with a rent-controlled tenant in place. Each unit has its own private, gated entrance from the street level, with a shared garden space beyond the gate and steps leading to the front door. Ideally situated in Westlake, this property offers the perfect blend of historical charm, a vibrant art scene, green parks, diverse dining options, and easy access to the best of Los Angeles.