Nestled amongst an impressive array of architecturally significant homes, on one of the most prestigious residential streets within the Clinton Hill Historic district, is 315 Washington Avenue. Built in the 1860's, this freestanding Francois I style mansion is a rare example of the magnificent dwellings built by Brooklyn's wealthiest citizens after the Civil War and a surviving jewel in the diverse architectural development history that characterizes Clinton Hill. A true expression of the architectural grandeur of the era is the stylish mansard roof that was added in 1894 by the esteemed architectural firm of Parfitt Brothers, featuring a modillion cornice, pedimented dormers adorned by finials, patterned slate sheathing and a broad frieze with recessed plaques ornamented with cornucopias. Set back from the street, this stately mansion is 30 feet wide by 68 feet deep on a 44 x 110 gated lot with a luxurious front, side and back garden, large outdoor terraces off the top two floors AND Private Parking. This exceptional property feels like a world unto itself! Currently configured as a three family, this glorious home has a generous 4,900 square foot 7 bedroom, 5.5 Bath main residence and two large, income producing ground level apartments, each with its own private entrance. When you enter the fully gated property, the deep front garden provides a lovely transition to a welcoming covered porch offering endless opportunities for gardening and socializing outdoors. The gracious entry foyer flows into a breathtaking great room and elegant formal dining room where beautifully preserved detail conjures fantasies of the gatherings that have taken place over the past 160 years. A magnificent showcase of original detail includes soaring 11 foot ceilings, huge oversized windows that flood the rooms with Southwest light and sun, stunning dentil crown molding, elaborately carved ceiling medallions, leaded glass built-ins, parquet floors and the original fireplace mantel. Off of the parlor floor hallway is a convenient half bath, the efficient chef's kitchen, large family room with an oversized bay window and ensuite bath, a great pantry/laundry room with 4 skylights and a door leading to the back yard. On the second floor are 4 bedrooms and 2 full baths. Two of the bedrooms have access to a lovely 240 square foot terrace overlooking the back garden. On the top floor are an additional three beds and two full baths with radiant heat throughout. One of the bedrooms has an ensuite bath and there is access to a sprawling, 625 foot unfinished deck that could be yet another amazing outdoor oasis! The lovely garden apartments provide a welcome income stream and their entrances are situated in the side of the building for optimal privacy and comfort. Unit #1 is a renovated 2 bedroom/2 bath with radiant heated floors and Unit #2 unit is a large 1 bedroom/1 bath in charming, vintage condition. The expansive backyard runs the width of the property and can accommodate multiple seating areas, ideal for entertaining and enjoyment of the outdoors. With the best of Clinton Hills' dining and shopping literally steps away you can enjoy the likes of Roman’s, Dosa Royale, Miss Ada, Aita, LaRina, Dino, Evelina, Colonia Verde, Chef Katsu, Saraghina Caffe and so much more! Easy access to Fort Greene Park, Brooklyn Navy Yard, Barclays Center, BAM and Atlantic Center, with an array of transportation options, including the A & C trains only 4 blocks away plus the G Subway entrance on the same block!