Manhattan

CHELSEA $807,500

255 W. 23rd St.

One-bedroom, one-bath co-op, 850 square feet, with kitchen with Viking stove, Miele dishwasher and marble counters, marble bath and garden; building features doorman and roof deck. Maintenance $1,016, 55 percent tax-deductible. Asking price $825,000, on market four weeks. Brokers: David Dubin, The Corcoran Group and Jason Karadus, Prudential Douglas Elliman

FLATIRON $1,450,000

1200 Broadway

Two-bedroom, two-bath loft co-op, 1,800 square feet, with 12-foot ceilings, Brazilian walnut floors, open kitchen with Sub-Zero refrigerator, marble and limestone bath, home office, three walk-in closets, Bosch washer/dryer, central AC and Empire State Building views; building features elevator and garage. Maintenance $1,966, 60 percent tax-deductible. Asking price $1,499,000, on market one week. Broker: Timothy Scott, The Corcoran Group

UPPER EAST SIDE $519,000

1270 Fifth Ave.

One-bedroom, one-bath co-op, 800 square feet, with home office, windowed kitchen with new appliances, pocket doors and partial park views; building features security and garage. Maintenance $837, 22 percent tax-deductible. Asking price $539,000, on market 38 weeks. Brokers: Paula Kotis, Weichert Realtors — Mazzeo Agency and Judy Bond, Brown Harris Stevens

UPPER WEST SIDE $646,000

200 W. 86th St.

One-bedroom, one-bath co-op, 600 square feet, with dining area, sunken living room, windowed kitchen, windowed bath and beamed ceilings; building features doorman, gym and roof deck. Maintenance $1,319, 44 percent tax-deductible. Asking price $629,000 on market three weeks. Broker: Karen Berman, Argo Residential

Brooklyn

WILLIAMSBURG $583,000

214 N. 11th St.

One-bedroom, two-bath condo, 1,121 square feet, with dining area, eat-in kitchen, washer/dryer, terrace and central A/C; building features doorman, gym and roof deck. Common charge $409, taxes $42. Asking price $617,753, on market 10 days. Brokers: Michael Eisenbrown, Level Group and Brad Phillips, aptsandlofts.com

Long Island

OYSTER BAY $512,500

82 E. Main St.

Four-bedroom, two-bath Colonial, 2,115 square feet, with formal dining room, eat-in kitchen with dishwasher, family room, home office, basement with laundry, attic and brick patio. Taxes $9,275. Asking price $519,000, on market one month. Brokers: Gavin Pike, Century 21 Laffey Associates and Jonathan Cifuentes, East Egg Realty

Westchester

HARRISON $610,000

29 Hyatt Ave.

Three-bedroom, two-bath Tudor, 1,593 square feet, with fireplace, formal dining room, updated kitchen with breakfast nook and sunroom. Taxes $7,204. Asking price $610,000, on market 11 weeks. Brokers: Lisa DeFonce, Houlihan Lawrence and Melissa Margiotti, Coldwell Banker