The Upper West Side has long been seen as the casually dressed, mature, intellectual cousin of its East Side counterpart. With its wide swaths of historic district and greenery on its eastern and western flanks, it has always been a bit removed from the rest of Manhattan. “It’s a sense of community and neighborhood up there that you don’t really find anywhere else in the city,” summed up Jeremy Swillinger, a broker with The Level Group. “A big motivator to go to the Upper West Side is the convenience, especially for having a family. You’ve got the school system, you have the parks, obviously, and then you’ve got the easy commutes on the red and blue line, and all the retail.”
To meet the demand in a neighborhood that’s perennialy been short of resale housing stock, developers have forged ahead both with new projects and rental-to-condo/co-op conversions in historic buildings, creating larger units to meet the demand of buyers, many of them with young families, who aim to stay in the city.
“It really comes down to the macro level of every city: nowadays, younger folks want to stay in the city for longer periods,” noted Mr. Swillinger.

210 West 77th Street
Project: Developed by the Naftali Group, Two Ten West 77th is an 18-story new-build condo comprising 25 luxury residences. Designed by Thomas Juul-Hansen, each three- to five-bedroom unit includes a Smallbone custom-designed kitchen; select residences have private outdoor terraces.
Amenities: Access to the rooftop terrace with an outdoor fireplace, a fitness room, sports court that can be converted into a movie theater and spa, featuring two private steam rooms and a sauna. The building also features 24-hour a doorman/concierge and bicycle storage. Private parking is available for purchase.
Percentage sold: 50 percent sold
Available units: 2,082 square feet for three-bedrooms to 5,973 square feet for the duplex penthouse, $4.65M to $21.5M
For more information: 210west77.com

The Chatsworth, 344 West 72nd Street
Project: An HFZ Capital Group conversion of a landmarked building, the units are marketed by Corcoran Sunshine and feature renovated interiors by Pembrooke & Ives. The two- to five-bedroom units offer open floor plan living, with contemporary touches like oak herringbone floors and a stylish freestanding bathtub in the Italian marble bathrooms.
Amenities: Children’s playroom, game room, doorman.
Percentage sold: N/A
Available units Two- to five-bedroom units from 1,747 square feet to 4,038 square feet, from $3.495 to $8.995M
For more information: thechatsworth.com

The Orleans
Project: Located at 100 West 80th Street, The Orleans is a turn-of-the-century gem by Buchman & Deisler. Developed by Orleans Realty and marketed by Halstead Property, this conversion project’s four- and five-bedroom residences currently on the market have views of the Museum of Natural History.
Amenities: Attended lobby with a concierge, full-time doorman, package room and a live-in super.
Percentage sold: Over 90 percent (24 out of 26)
Available Units: Two five-bedroom residences from 2,512 square feet to 2,639 square feet, $5.275M to $5.8M
For further information: theorleansny.com

One West End
Project: Developed by Elad Group and Silverstein Properties and designed by Pelli Clarke Pelli Architects, this 42-story building will be the first and tallest condominium project to come to market in Christian de Portzamparc’s Riverside Center, four blocks from Columbus Circle. Each of the 246 one- to four-bedroom residences has an interior designed and curated by Jeffery Beers.
Amenities: 12,000-square-foot rooftop garden terrace by Mathews Nielsen Landscape Architects, media room, game and playroom, on-site parking, 24-hour doorman and concierge and a fitness center with 75-foot indoor swimming pool and spa treatment rooms.
Percentage sold: Sales to launch this month
Available units: 800 square feet to 6,000 square feet, $1.25M to $20M
For further information: 1WestEnd.com

The Astor
Project: Commissioned by William Waldorf Astor, The Astor runs the entire length of Broadway from 75th to 76th Streets, with the two South Towers built in 1901 and the North Tower dated to 1914. Restored by Pembrooke & Ives, the first offering in this conversion by HFZ Capital comprises 15 units, which range in size from one to four bedrooms, feature state-of-the-art interior enhancements to complement the prewar details that include working fireplaces and custom moldings.
Amenities: 24-hour concierge, children’s playroom, fitness center and bicycle storage.
Percentage sold: Has just entered the market.
Available units: 15 apartments available, 813 square feet to 3,409 square feet, $1.525M to $9.2M
For more information: theastor.com

498 West End
Project: Developed by Samson Management, this conversion from rentals to condos by CetraRuddy architects included restoring the facade of the turn-of-the-century Neville & Bagge building at the corner of 84th Street and West End Avenue. Exclusively marketed by Halstead Property, the renovated three- to five-bedroom units include washers and dryers, marble slab countertops and backsplashes in the kitchen, white oak floors in a custom 30-inch square parquet-inspired pattern throughout dining rooms, living rooms and kitchens.
Amenities: Fitness room, secured private storage and bicycle storage, playroom with a modular pin art wall, attended lobby and pet friendly.
Percentage sold: Approximately 60 percent (15 of 19)
Available units: Three four-bedroom residences from 3,347 square feet to 3,545 square feet, $7.795M, and a five-bedroom at 3,784 square feet, $8.325M
For more information: 498wea.com

One Riverside Park
Project: Developed by Extell and designed by Goldstein, Hill and West, One Riverside Park has expansive views of the Manhattan skyline and the Hudson River. All 219 newly built condominium residences include floor-to-ceiling windows and interiors designed by Shamir Shah.
Amenities: More than 50,000 square feet of lifestyle amenities, including a 40,0000-square-foot athletic club and spa, with a 75-foot swimming pool, 38-foot rock-climbing wall, basketball and squash courts, two-lane bowling alley, and a golf simulator. Residents also have access to an indoor playground, function room with a full catering kitchen, private screening room, and a landscaped garden courtyard, as well as a 24-hour doorman and concierge service. On-site parking is also available.
Percentage sold: 90 percent sold
Available units: From 1,844 square feet to 6,168 square feet, $4.02M to $23.14M, with the 6,056-square-foot town house for $25.75M
For more information: oneriversidepark.com