EXCLUSIVE NEW TO MARKET  DEVELOPMENT OPPORTUNITY - R6 ZONING - BUILDABLE 5,291 SQUARE FEET: 4-Bd. Brick House with High Ceilings, Charming Deck and 2-Car Garage    This 4-bedroom, 3-bath, detached brick house, built in the 1920s, is graced with 10-ft.-high ceilings and enjoys a lovely rear deck, perfect for entertaining. It also has a detached 2-car garage.    The property, which measures 25 by 100 ft., is zoned R6, with buildable potential for expansion up to 5,291 sq. ft., according to the seller's architect.    Features include: an entry vestibule and foyer; living room with a brick wood-burning fireplace; formal dining room with a pass-through to an updated eat-in kitchen with granite countertops and a door to the rear deck and paved yard. The second floor has a bright skylighted hall area, and there are ceiling fans in all bedrooms.    There is a finished walk-out basement, complete with a studio hospitality suite, a kitchenette, a full bathroom, a laundry area and a storage room. The property measures 25 by 100 ft.    The house is in an ideal location for nearby shops and eateries on Riverdale and Johnson Avenues, and is close to parks and transportation to Manhattan (including express buses and the No. 1 subway train). Well-situated for Manhattan College and highly regarded public and private schools.