Rare scale and serenity at the heart of Nob Hill. This 1923 two-bedroom residence at 637 Powell Street pairs classic style with about $100K in upgrades. Set back from street noise, the L-shaped layout offers generous proportions, ample storage, and exceptional natural light. A formal entry opens to hardwood floors and high, coved ceilings. The spacious, sunlit living room is tranquil, with an oversized window and sky views over a private square. The spacious formal dining room, with an oversized custom lampshade, flows into a remodeled kitchen with granite slab counters, Carrara marble tile, custom halogen lighting, cherry cabinetry, Viking range, Bosch dishwasher, and in-unit washer/dryer. The remodeled bath features custom quartz slabs, Hansgrohe fixtures, and heated floors. The spacious primary suite offers a Murano crystal fixture, a custom contemporary closet with flexible organization, and a large window with no facing neighbors. The second bedroom, also with Murano crystal lighting, suits an office or guest room. Dimmable lighting throughout, integrated surround sound, and new custom curtains and drapery complete the home. Walk Score 100: near the Fairmont, Ritz-Carlton, Chinatown, Union Square, Whole Foods, Trader Joe's, North Beach, FiDi, I-80, 101, and 280.