Welcome to 5509 Saloma Avenue - A Classic 1957 William Mellenthin gem in the heart of Sherman Oaks. This rare architectural treasure blends the timeless appeal of Mellenthin's signature design with the versatility of a thoughtfully imagined second-story addition. With approximately 3,420 square feet of living space, this 6-bedroom, 4-bathroom residence offers an ideal layout for both everyday living and effortless entertaining. A cherished family home, it seamlessly combines mid-century soul with modern functionality, offering flexible spaces for multi-generational living, a private retreat, or a creative work-from-home setupall set on a generous 7,448 square foot lot.Curb appeal abounds with signature Mellenthin diamond-paned windows, a cross-gabled roofline, brick-clad faade, and a welcoming brick pathway that leads to a charming front porch. Inside, the home unfolds with warmth and characteranchored by a dramatic double-sided stone-to-brick fireplace with built-ins, wood-beamed ceilings, and expansive windows that fill the interiors with natural light.The formal dining room is equally inviting, featuring a cozy brick fireplace, wood-paneled wainscoting, and French doors that open to a covered patiocreating a natural flow for indoor-outdoor living. A built-in bar adds both charm and function, perfect for gatherings and celebrations. The gourmet kitchen and sunlit breakfast area maintain their mid-century character while offering ample workspace, warm wood cabinetry, and an intuitive layout that caters beautifully to the home chef. Upstairs, the second-story addition features a spacious loft-style family room with custom built-ins, a generous second primary suite, an additional full-sized bedroom that mirrors the scale of the upstairs suite, and a sun-filled kids' room with pitched ceilings and treetop views. The thoughtful layout offers comfort and flexibility, with room for everyone to spread out and feel at home. Downstairs, the remodeled main-level primary suite includes a spa-inspired bathroom with dual vanities, a glass-enclosed shower, and generous double closet space. The layout also features an additional downstairs bedroom, ideal for guests or extended family, along with a full hall bathroom and a conveniently located powder room. A dedicated home office with double closets adds versatility for today's lifestyle needs.Outside, the backyard is a true oasislushly landscaped with a sparkling pool and spa, tranquil waterfall feature, and multiple lounging and dining areas ideal for entertaining or unwinding. A unique feature of the home's rear exterior is its rustic wood design, intentionally crafted to reflect the family's beloved Montana homebringing a sense of warmth and retreat to the space. Whether relaxing poolside or dining under the covered patio, the backyard delivers an inviting atmosphere with timeless character. Located on a peaceful, tree-lined street in one of Sherman Oaks' most sought-after neighborhoods, 5509 Saloma Avenue offers a rare opportunity to own a piece of Los Angeles architectural history thoughtfully expanded and lovingly maintained for the next chapter.