For the connoisseur and lover of art and authentic period architecture, this spacious 20'-wide, 5-story brownstone with 13 rooms, 5 large bedrooms, 5 full baths and 2 powder rooms has just been listed at $12,000,000. It is the only renovated 20'-wide single family house on a CPW block for sale under $17,000,000 and it is located on what is generally considered the best CPW block, bounded on both sides by rows of townhouses and no midblock apartment buildings. The house was designed in 1887 by George M. Walgrove, a noted residential architect on the Upper West Side. The tasteful museum quality restoration/renovation retains the original mahogany and oak panelling, inlaid parquet floors, mantels (5 woodburning fireplaces) and elegant staircase. This is a very bright house with high ceilings and many large windows on every floor. The original stoop leads to a vestibule, foyer, front parlor, living room, wet bar, powder room and two wood-burning fireplaces on the high-ceiling parlor floor. A spacious curved stair in the all-glass extension descends to the formal dining room and landscaped garden. The garden level also includes a large professional kitchen, full-width breakfast room, powder room and two large closets. A stairway leads to a fully waterproofed, finished basement with recreation room, laundry room, large walk-in cedar closet, boiler room and two large storage rooms. The third floor is a master suite with a large bedroom, master bath with large marble slab walls, dressing room, library, office and two wood-burning fireplaces. The fourth floor has two large bedrooms, each with ensuite bath and walk-in closet, one wood-burning fireplace and a large terrace. The fifth floor has a large bedroom with bath in the rear and a bright suite with bedroom, living room and kitchen in the front. The house is centrally air conditioned. While already quite spacious, the house has 2,500 square feet of useable air rights and could be expanded upward and to the back if desired.