Welcome to 311 Oak St. #837, a modern penthouse-style condo in the desirable Sierra complex in Jack London Square. This spacious 2-story 1-bedroom, 1.5-bathroom end unit boasts over 1,391 square feet of modern living space with soaring vaulted ceilings and floor-to-ceiling windows that flood the home with natural light. Built in 2003, this corner unit also sits on the top floor with no neighbors above' creating the ideal condo living environment. Enjoy breathtaking views from the generously sized bedroom with an en-suite bath and bonus space. The contemporary open kitchen features sleek black Quartz countertops, Samsung stainless steel appliances, and a full mosaic backsplash. Residents enjoy top-notch amenities, including 24 hour attended front security desk, a resort style swimming pool, sauna, a two-level fitness center, conference/business rooms, and a media center/club room. The unit comes with 2 garage parking spots side by side (Spots 125 &#38' 126). Just steps from the estuary, indulge in dining, shopping, and the vibrant Farmer’s Market, with favorites like Scotts’ Seafood, Yoshi’s, and Plank nearby. With easy access to the Oakland Airport, 880 Freeway, BART, the SF Ferry, and Amtrak, this location offers unbeatable convenience.