3-Family Brick Carriage House | 4-Car Private Garage | Corner Lot | 820 FAR Remaining A rare Park Slope treasure — this historic turn-of-the-century brick motorcar carriage house sits proudly on the corner of 6th Avenue and 6th Street. Currently configured as a three-family residence, the property can be easily converted into a one-family home offering over 3,000 sq ft of living space and approximately 1,400 sq ft of private outdoor areas, including a garden roof deck with sweeping south and west sunset views. The home features a private attached 4-car garage (plus a curb cut with space for additional vehicles), an extra-deep 88-ft lot, and is zoned R6B with 820 sq ft of unused buildable FAR, providing future expansion potential. Historic details include original brickwork and a wood-burning fireplace, combining old-world charm with exceptional versatility. Perfect for an end-user seeking a spacious residence with parking, or a developer looking for a unique adaptive reuse opport