Buying an apartment in New York City can be a monumentally expensive endeavor, so it may (literally) pay to closely watch listings for declining prices. Here are 10 units you can purchase across all five boroughs that have recently decreased in price, including a Clinton Hill loft in a former Ping Pong table factory (down $40,000), a Long Island City two-bedroom with a balcony (down $100,000), and a Fort Greene duplex with a parking spot and a private roof deck (down $124,000).

GREENWICH VILLAGE, MANHATTAN: A three-bedroom, one-and-a-half-bath, 1,600-square-foot corner loft with 11-foot ceilings, fully restored original oak moldings, an open kitchen, an oversized living/dining room, hardwood floors, and a washer and dryer in a co-op building with a roof deck, storage, and keyed elevator entry at 30 East 10th Street (between University Place and Broadway). $2.35 million plus $2,770/month maintenance. Discount: $100,000.

LENOX HILL, MANHATTAN: A one-bedroom co-op with a large entrance gallery, a galley kitchen, huge windows, beamed ceilings, and herringbone floors in a full-service prewar building with concierge services, daily maid service, private storage, and a fitness center at 575 Park Avenue (between East 62nd and East 63rd Streets). $499,000 plus $3,010/month maintenance. Discount: $76,000.

CLINTON HILL, BROOKLYN: An airy two-bedroom, two-bath co-op loft with a wall of windows in every room, 14-foot ceilings, massive columns, a ventless fireplace, an oversized kitchen with granite countertops, and private roof deck access in a former Ping Pong table factory at 110 Clifton Place (between Classon Avenue and Grand Avenue). $1.145 million plus $968/month maintenance. Discount: $40,000.

FORT GREENE, BROOKLYN: A two-bedroom, two-and-a-half-bath duplex condo with white oak floors, floating stair treads, stainless steel appliances, central air-conditioning, a washer and dryer, a private parking spot, and private roof space in a pet-friendly building with basement storage at 74 Adelphi Street (between Park Avenue and Myrtle Avenue). $1.275 million plus $389/month common charges, $59/month taxes. Discount: $124,000.

SHEEPSHEAD BAY, BROOKLYN: A three-bedroom, two-bath condo with a deeded parking space, an eat-in kitchen with stainless steel appliances, a private balcony, two walk-in closets, hardwood floors, in-unit laundry, and external storage room in a pet-friendly elevator building at 2012 Jerome Avenue (between Ocean Avenue and East 21st Street). $799,000 plus $295/month common charges, $115/month taxes. Discount: $66,000.

LONG ISLAND CITY, QUEENS: A two-bedroom, two-bath condo with a private balcony, floor-to-ceiling windows, custom window treatments, a gas fireplace, and in-unit laundry, in a full-service building with a fitness center, a virtual doorman, package room, cold storage, bike room, and a Zen garden at 10-40 46th Road (between 11th Street and Vernon Boulevard). $1.295 million plus $666/month common charges, $141/month taxes. Discount: $100,000.

ASTORIA, QUEENS: A two-bedroom, two-bath condo with oak floors, video intercom, lots of closet space, and a private balcony in a building with a gym, laundry and a garage at 23-25 31st Avenue (between 23rd Street and Crescent Streets). $900,000 plus $487/month common charges, $13/month taxes. Discount: $50,000.

SPUYTEN DUYVIL, BRONX: A studio co-op with floor-to-ceiling windows in a pet-friendly building with a 24-hour doorman, a pool, garden, parking, and on-site laundry at 2727 Palisade Avenue (near Kappock Street). $160,000 plus $515/month maintenance. Discount: $25,000.

GRYMES HILL, STATEN ISLAND: A newly renovated 950-square-foot two-bedroom, two-bath condo with a European-style kitchen and large bedrooms in a luxury building with a 24-hour doorman/concierge, heated indoor pool, gym, sauna, and game room at 755 Narrows Road North (near Longview Road). $345,000 plus $810/month common charges. Discount: $4,999.