Brooklyn townhouse grandeur at its finest. Built in 1910 and meticulously maintained, rich history and modern elegance envelope you in this 20-foot-wide, Neo-Renaissance, limestone home adjacent to Prospect Park. Ideally sited at the head of a tree-lined block with wide sidewalks, 631 Third Street is a rare offering with three exposures. Featuring the standard north and south exposures plus a rarely seen eastern exposure, natural light pours throughout the house creating a feeling of bliss. Part of the Park Slope Historic District, this remarkable home offers 4 spacious bedrooms, a separate home office, and 3.5 baths throughout the three floors plus a fully updated English basement. Tranquility unfolds the minute you step through the wrought iron gate and walk along the bluestone, in the 20’ x 20’ plush front garden. Ascend the stoop to the double-arched doorway vestibule, and through the elegant foyer with soaring 10’ ceilings, inlaid hardwood floors, and original moldings. Stunning pocket doors grace the door frames to each of the formal living room, sitting room, and dining room with a lovely window seating area. The entire home is graced with original architectural design and pre-war details painstakingly restored such as distinctive ornate wood paneling and millwork, classic moldings, extra-tall doorways, 7 original unique decorative fireplace mantels and ribbon inlaid hardwood flooring throughout. The pièce de résistance is the true eat-in Chef's kitchen with a separate breakfast area, abundant storage, high ceilings and breathtaking counter-to-ceiling windows overlooking the garden below. Adorned with radiant heated floors, marble countertops, large Miele & Viking stainless steel appliances, including a 6-burner professional range with vented hood, and walk-in pantry with a place for every item. Stairs lead down to a serene and private patio lined with bamboo trees, perfect for outdoor entertaining. A beautiful powder room completes this majestic parlor floor. The third floor offers a sense of privacy and oasis with a lavish primary bedroom boasting an elegant decorative fireplace and four bay windows with southern light streaming through the room, and a large secondary bedroom overlooking the garden below. Enjoy special original details such as two Victorian floral sink basins, a private dressing area, original stained glass, and several custom closets connecting the two bedrooms in a multitude of options. There is no shortage of storage with eight closets on this floor. A large and beautifully updated windowed bathroom with radiant heated floors, a contemporary mahogany vanity, pre-war tiling, and an oversized shower complete this floor. The fourth floor offers extraordinary light from the top of the house with two skylights above. Two large bedrooms each feature splendid tree-top views, large closets, decorative fireplace mantels, several custom closets and private sink basins. A bonus to this floor is the home office with private skylight, perfect for working from home. This floor enjoys a vintage spa-like bath with pre-war details such as classic white tiling, a vintage clawfoot soaking tub and a pedestal sink. The fully updated English Basement with brand new flooring offers an incredibly versatile space and has something for everyone. This floor features a newly renovated full bath, room for a home gym, a less formal family room, game room, a separate laundry room, and deep closets and shelving for boundless storage throughout. The English basement is accessible from the street level as well as the back garden. Outfitted with state-of-the-art systems such as full home security and central air conditioning and heating system with new environmental green LEED standards, this house marries the inimitable charm of a bygone era with every modern convenience.