Perfectly situated on one of Park Slope's most sought-after tree-lined blocks, this 21 ft-wide, four-story brownstone epitomizes architectural elegance. Graced by a stately front stoop and intricate period details, this timeless residence features a distinguished owner's triplex presiding over a spacious garden level apartment which can be rented out or enjoyed with the rest of the house for expansive single-family living. Aptly described as grand, the front room is light and bright thanks to south facing curved bay windows that perfectly frame tree-lined Fiske Place, with open views all the way to the leafy end of the block. The impressive interiors are enriched throughout by original herringbone hardwood floors, elaborate and beautifully maintained woodwork, pristine cove and baseboard moldings, soaring ceilings (11'10" on the parlor and 10+' on higher floors), stained glass window accents, heavy oak doors, and two majestic decorative fireplace mantles on every floor. The 32 ft long living room features a striking mantle with a large pier mirror and the original hand painted ceiling, a perfect setting for entertaining. Adjoining through pocket doors is a regal dining room with the same gorgeous ceilings, extensive woodwork and glass door built-ins. The windowed kitchen overlooks the balcony and garden, and has plenty of cabinet and storage space. Exterior balcony stairs descend to the landscaped rear garden with a brick and flagstone patio. A level up finds the large peaceful primary bedroom and a second bedroom with gilded pier mirrors, both bedrooms with walk-in closets, and a full bath with a stunning stained glass window. The top story also has two sizable bedrooms, plus a windowed office, huge walk-in storage closet, a full bath with a washer-dryer, and a bright, colorful stained glass skylight. All bedrooms have ample closets and dressing areas with a marble topped private sink. With its own separate entrance, and brightened by tall windows and high ceilings, the ground-floor rental presents an expansive living/dining room with fireplace, pass-through kitchen, walk-in closets, and bedroom with full bath. Off the bedroom is a washer-dryer, and a windowed mudroom extension with a toilet and access to the garden. A full basement with arched brick bracing, 7+ft ceilings, and separate storage rooms heighten the allure of this special gem. At the finest address, moments from Prospect Park and close to Prospect Park West, the Grand Army Plaza farmer's market, Brooklyn Museum, Botanical Gardens, great boutiques, bars and restaurants, gourmet food shops, and the 2/3/B/Q subway lines.