For those who value living in the heart of Concord Center, yet on a quiet side street, this historic New England Colonial (c.1820) must be seen!   Originally, this home functioned as a private school whose famous alumni included Henry David Thoreau!  With high ceilings and oversized windows, the sunny first floor offers a generous living room and library with custom bookcases, a formal dining room, a large, eat-in kitchen with exposed beams open to a family room so chefs never feel isolated from family and friends!  A screened porch is the perfect spot for fair weather entertaining or enjoy the patio overlooking the private yard.  The second floor offers 4/5 bedrooms and two full baths while the walk-up third floor is a nice getaway for the kids or for a home office or exercise room.  This home also offers additional expansion possibilities and its just a few minute's walk to all - the library, restaurants, coffee shops, shopping and the train to Boston & Cambridge!