828 Union Street is a grand single-family brownstone on a serene, tree-lined block in the heart of prime Park Slope. Spanning 4,120 square feet across four stories, with a 20-foot width and ceilings up to 12 feet, this 5 Bedrooms and four bathroom home strikes a rare balance between period grandeur and premium renovations while offering an oasis of privacy, quiet, and calm. Stunning historical details abound throughout - intricate moldings, an antique coal stove, and a stunning stained glass skylight crowning the top of the stairwell. The parlor floor is particularly spectacular, with its original stained glass sliding door, Asian-inspired decorative hinge plates, fully functional pocket doors, and a 32-foot living room that flows into an additional grand living area at the rear. The kitchen is outfitted with a bespoke Space Theory kitchen by Henrybuilt, a Wolf stove and range, Viking dishwasher, Sub-Zero refrigerator, and radiant floor heating. A custom walnut banquette anchors the dining area, and generous storage - including a full-size pantry and mudroom - keeps things effortlessly organized. The kitchen opens directly to a sunny, south-facing backyard stretching 35 feet deep, with a Weber gas grill ready for entertaining. All bathrooms have been thoughtfully renovated throughout. The primary bathroom features a frameless three-panel glass shower enclosure, Roc-Base Centro Quartz shower base, West Elm vanity, Toto toilet, and a defogging dimmable mirrored cabinet with outlets and USB ports. Additional bathrooms include a Kohler deep soak tub, a skylight, and consistent high-spec finishes. Zoned for PS 321, this gem is located just one and a half blocks from Prospect Park and a half block from the Park Slope Food Coop and Velvet Black, 828 Union Street offers the best of Prime Park Slope living - an exceptional park, fine dining, The Brooklyn Museum and Brooklyn Library - with easy access to Manhattan via the 2,3, Q, and B lines. Available unfurnished for a one year term with option to renew beginning at the end of July. Call today to schedule your private viewing!