NO PIEDS A TERRE.  Once in a blue moon is how often something like 22 W. 76th Street #1 comes along.  This one bedroom, lofty and spacious ground level apartment (completely above grade) with 600 square feet of private garden just waiting for your green thumb is in an 1899 modified French Revival style stone house on a fabulous park block in the center of the 76th Street Historic District  Enter the garden apartment through the formal entry foyer from which radiates a large walk-in closet, a roomy, updated bathroom with spa fixtures, and a washer-dryer closet.   Step down from either the foyer or the dining area to the newly refinished wood floors in the massive, loft-like living area that could comfortably accommodate a full living room, dining for eight, and even an office nook.  The nearly twelve-foot long galley kitchen has amazing storage space, including a full pantry, dishwasher, stove and full refrigerator, and opens to a lovely, separate dining area with garden views.  The bedroom has two generous closets and two exposures that look out to the garden.  The L-shaped garden is the cherry on top, where you can landscape 600 square feet of your own secret oasis with two distinct areas for separate dining, living and playing.  The landmark stone house is part of a row of similar houses designed by Cleverdon & Putzel, marked by richly carved ornamentation and three dramatic stories of curved bay windows.  One of the earliest cooperatives in New York City, this five-unit beauty welcomes you through rich, double wood doors into a large, well-preserved marble and tile lobby graced with an original fireplace.  Experience old New York while living on the doorstep of Central Park at 22 West 76th Street.  The well-run, elevator cooperative keeps maintenance low.  There is also private storage and pets are allowed on a case by case basis. Sorry, no pieds a terre and no subletting.