YEAR BUILT:1888 STYLE:SHINGLE ARCHITECT:HARRISON ATWOOD Although its narrow street frontage belies its commodious scale and its minimal exterior detailing is atypical for its time, this is one of Ashmont Hill's largest and most lavish houses. It is also one of the most stylistically advanced for its era. Not surprisingly, perhaps, it was designed by an architect as his own home. The interior has a linear, side-hall configuration much like a Back Bay rowhouse of the same period. One enters a stair hall with cherry woodwork to the left, beyond which is a library whose built-in bookcases retain their leaded-glass doors. To the right is an impressive enfilade of reception room, parlor and dining room. In the latter rooms glowing oak woodwork is used for the heavily carved Classical mantelpieces and the beamed and coffered ceilings. In the original dining room (now used as a sitting room) the center door of the built-in oak sideboard is carved with the face of Bacchus, god of wine. At the rear, a butler's pantry opens to a simple kitchen. Upstairs are a plethora of second-floor bedrooms and a dressing room with its original built-ins. Most of the third floor is occupied by a large ballroomjust the thing for entertaining.