901 Isabel St A once-in-a-generation Mt. Washington landmark. The Nickel Leong Mansion (1905) crowns a hilltop in rare architectural splendor. Designed by celebrated architect John C. Austin, whose work shaped icons including the Griffith Observatory and Los Angeles City Hall. This Historic Cultural Monument (No. 849) is a soulful expression of early Los Angeles grandeur, thoughtfully preserved yet remarkably livable. Framed by majestic Bunya pines, its neoclassical faade opens to warm, light-filled interiors with soaring ceilings, original hardwood floors, intricate crown moldings, built-ins, and millwork crafted with extraordinary care. The gracious foyer unfolds into beautifully proportioned living and dining rooms each anchored by a fireplace and expansive picture windows capturing sweeping views. A newly reimagined kitchen blends vintage spirit with modern function, creating a natural gathering place at the heart of the home. Upstairs, four serene bedrooms include a luminous primary suite, while a winding staircase leads to a finished attic, an inspiring retreat for art, music, or play. Set on more than half an acre, layered terraces and private decks invite everyday ease as much as twilight entertaining. Moments from neighborhood favorites like Loquat, Cafe Antonietta, Barra Santos, and The Golden Poppy Market, yet entirely its own world, this is more than a home; it is a rare piece of Los Angeles history, ready to be lived in and loved.