The Elliott-Chelsea Houses and West 26th Street seen from the High Line at dusk
Development Tracker — Chelsea

What's Being Built in Chelsea? The Fight Over Rebuilding Two NYCHA Campuses, a Prison Turned Into Homes & the Rezoning North of 23rd Street

Hush Street tracks what's changing in Chelsea: the contested Fulton and Elliott-Chelsea Houses rebuild, Chelsea Beacon at the former Bayview prison, the Midtown South rezoning, and new rentals and condos from the High Line to Sixth Avenue.
15
Projects Tracked
5,510
Homes Planned at Fulton & Elliott-Chelsea
4
Under Construction
8
Pre-Construction
Oct. 2026
Updated
Watch → 1 Contested 1 Stalled
What’s Changing
→
A 35-story, 78-unit tower was filed at 212 West 29th Street, inside the Midtown South rezoning area.Oct. 2026
→
Gov. Hochul broke ground on Chelsea Beacon, converting the former Bayview prison into 131 affordable and supportive homes.Sep. 2026
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NYCHA began lease-termination proceedings against households refusing to relocate from Fulton Houses, after an appeals court lifted the construction stay.Sep. 2026
550 West 21st Street Construction loan (YIMBY)$155M
118 Tenth Avenue Site purchase (YIMBY)$53M
See the towers →

Hush Street is tracking what’s being built in Manhattan’s Chelsea.

Chelsea’s biggest development stories are happening on public land. NYCHA, Related and Essence have won federal approval to demolish and rebuild the Fulton and Elliott-Chelsea Houses with up to 5,510 apartments, a plan still contested by tenants facing relocation. On Eleventh Avenue, the state has broken ground on Chelsea Beacon, turning the long-empty Bayview Correctional Facility into 131 affordable and supportive homes.

North of 23rd Street, the City Council’s 2025 Midtown South rezoning opened former manufacturing blocks to housing for the first time. Elsewhere, new rentals are using the state’s 485-x tax incentive and the City of Yes density bonus, and luxury condos keep filling the last lots near the High Line.

Where DOB records and press reports disagree on heights or unit counts, both are given. A permit is not treated as proof that construction has started.

Project Location Status
1Fulton and Elliott-Chelsea Houses Redevelopment W. 16th–27th Sts., Ninth–Tenth Aves. Approved; Awaiting Permits
2Chelsea Beacon (550 West 20th Street) Eleventh Ave. at W. 20th St. Early Work Underway
3Midtown South Mixed-Use Plan (Chelsea Portion) North of W. 23rd St., Sixth–Eighth Aves. Approved Rezoning
4Vanderbilt University NYC Campus (Former General Theological Seminary) 440 W. 21st St. Renovation Permitted
5550 West 21st Street 550 W. 21st St. Topped Out
6273 West 22nd Street W. 22nd St. near Eighth Ave. Filed; Site Work Permitted
7335 and 345 West 25th Street W. 25th St. near Eighth Ave. Permitted
8118 Tenth Avenue Tenth Ave. at W. 17th St. Filed (Plan Review)
9212 West 29th Street W. 29th St. near Seventh Ave. Filed (Plan Review)
10540 West 29th Street W. 29th St. near Eleventh Ave. Filed (Plan Review)
11246 West 18th Street W. 18th St. near Eighth Ave. Under Construction
12The Myles (142 West 21st Street) W. 21st St. near Sixth Ave. Nearing Completion
13Hudson Arts Building (220 Eleventh Avenue) Eleventh Ave. at W. 25th St. Stalled at Foundation
14Mabel (335 Eighth Avenue) Eighth Ave. at W. 27th St. Completed (2025)
15The Andrea (280 Eighth Avenue) Eighth Ave. at W. 24th St. Completed (2025)

Public Land, a Prison Conversion & a Rezoning

The projects that will change Chelsea most are public: a NYCHA rebuild, a state-owned landmark turned into housing, a university campus and a rezoning.

1

Fulton and Elliott-Chelsea Houses Redevelopment

Google Maps of Fulton Houses, 401 West 19th Street, New York, NY
Fulton Houses, part of the NYCHA campus slated for demolition and rebuilding, via Google Maps. — Imagery: Google Maps
Address/LocationFulton Houses and Elliott-Chelsea Houses, Ninth to Tenth Avenues, West 16th to 19th and West 25th to 27th Streets
Developer/ApplicantEssence Development and Related Companies, as NYCHA’s PACT partner; Ismael Leyva Architects, DOB applicant for the first buildings
ProjectDemolition of the two NYCHA campuses and construction of up to 5,510 apartments, with all 2,056 existing public housing apartments replaced and up to 3,094 permanently affordable in total (YIMBY). The first two replacement buildings filed with DOB are a 12-story, 217-unit building at 401 West 19th Street and a 40-story, 386-foot, 459-unit tower at 441 West 26th Street.
StatusApproved; Awaiting Permits
Latest UpdateAn appellate court lifted the stay on demolition and construction in July 2026 and HUD approved the plan (The Real Deal, YIMBY). In September, NYCHA began lease-termination proceedings against four households that refused to relocate (The City Reporter). Both new-building applications are still in DOB objections, and no demolition permit has been issued.

Chelsea's Most Contested Project

The City Reporter counts 18 buildings coming down and six replacement towers, with 73 households already relocated. A group of 24 Chelsea Addition households has a pending lawsuit, and opponents have argued the plan should have gone through the city’s ULURP land-use review.

Sources disagree on the cost, about $2 billion according to The Real Deal and YIMBY and $1.2 billion according to The City Reporter, and on the timeline: about three years for the first phase and about eight years for the full build-out, per YIMBY.

Sources: NYC DOB NOW jobs M01260000-I1, M01274330-I1 and M01215739-I1 (accessed Oct. 2026); New York YIMBY (Aug. 2026); The Real Deal (July 2026); The City Reporter (Sept. 2026)

2

Chelsea Beacon (550 West 20th Street)

Google Street View of 550 West 20th Street, New York, NY
Chelsea Beacon (550 West 20th Street), via Google Street View. — Imagery: Google Street View
Address/Location550 West 20th Street, the former Bayview Correctional Facility
Developer/ApplicantCamber Property Group and the Osborne Association, on a site disposed of by Empire State Development; COOKFOX Architects
ProjectConversion of the Art Deco former Bayview Correctional Facility, vacant since Hurricane Sandy in 2012, into 131 permanently affordable apartments at up to 80% of area median income, at least 79 of them supportive housing for formerly incarcerated New Yorkers, plus a 15-unit transitional residence and community space. A new addition rises seven stories above the existing roof (YIMBY); DOB lists 15 stories in all.
StatusEarly Work Underway
Latest UpdateGov. Kathy Hochul held the groundbreaking on Sept. 15, 2026, with completion targeted for 2029. DOB has issued interior demolition, hoist and mechanical demolition permits; foundation work is still in plan review.

A $167 Million Prison Conversion

The state chose the developers in 2024 and adopted a project plan in February 2025 that overrides local zoning. The governor’s office put the cost at $167 million, financed in part with low-income housing tax credits and state housing and economic development money.

Work so far is interior demolition and site preparation, so Hush Street describes it as early work rather than full construction.

Sources: Office of Gov. Kathy Hochul (Sept. 2026); New York YIMBY (Sept. 2026); NYC DOB NOW job M01314086-I1 and permits for BIN 1012284 (accessed Oct. 2026)

3

Midtown South Mixed-Use Plan (Chelsea Portion)

Google Maps of West 26th Street and Seventh Avenue, New York, NY
The Chelsea blocks north of West 23rd Street covered by the Midtown South rezoning, via Google Maps. — Imagery: Google Maps
Address/LocationWest 23rd to West 30th Streets, between Sixth and Eighth Avenues
Developer/ApplicantNYC Department of City Planning
ProjectA rezoning of 42 former manufacturing and commercial blocks between West 23rd and West 40th Streets, Fifth to Eighth Avenues, allowing housing and office-to-residential conversions for the first time, with nearly 10,000 homes projected and up to 2,800 permanently affordable under mandatory inclusionary housing (City Council, YIMBY).
StatusApproved Rezoning
Latest UpdateThe City Council approved the plan on Aug. 14, 2025 (ZAP 2024M0142). The city’s accompanying investment package of about $470 million includes upgrades to P.S. 11 in Chelsea.

Opening Chelsea's Garment Blocks to Housing

The Council called it the largest residential neighborhood rezoning in two decades. Its effect in Chelsea will show up building by building as new filings arrive; the 35-story tower filed this month at 212 West 29th Street, below, sits in the rezoned band, though Hush Street has not confirmed that it relies on the new zoning. Exactly how many of the 42 blocks fall inside Chelsea has not been mapped here block by block.

Sources: NYC Planning ZAP 2024M0142; New York City Council (Aug. 2025); New York YIMBY (Aug. 2025)

4

Vanderbilt University NYC Campus (Former General Theological Seminary)

Google Street View of 440 West 21st Street, New York, NY
Vanderbilt University NYC Campus (Former General Theological Seminary), via Google Street View. — Imagery: Google Street View
Address/Location440 West 21st Street, Chelsea Historic District
Developer/ApplicantVanderbilt University, on a 99-year ground lease from the General Theological Seminary; Beyer Blinder Belle
ProjectRenovation of the seminary’s historic campus, about 2.7 acres and 13 buildings, for Vanderbilt’s New York programs: accessibility ramps, a new West 21st Street gate, bluestone paving, lighting and underpinning work.
StatusRenovation Permitted
Latest UpdateLandmarks issued a permit for underpinning work on April 24, 2026 and amended a facade permit on Aug. 3, 2026. Academic programs were set to begin in fall 2026.

A University Moves Into the Close

The state Board of Regents gave the campus its last approval in November 2025, YIMBY reported, after the state attorney general approved the lease. YIMBY put the lease value at $44 million. This is a renovation, not new construction, so there is no DOB new-building filing.

Sources: NYC Landmarks permit COFA-26-09184 (Apr. 2026); New York YIMBY (Dec. 2025); New York YIMBY (Nov. 2025)

New Rentals, Condos & a Stalled Office Building

Private construction fills the last lots: rentals using new tax and density incentives, luxury condos near the High Line, and an office building stuck at its foundation.

5

550 West 21st Street

Google Street View of 550 West 21st Street, New York, NY
550 West 21st Street, via Google Street View. — Imagery: Google Street View
Address/Location550 West 21st Street, West Chelsea waterfront
Developer/ApplicantLegion Investment Group and AVRS Partners (originally Casco Development); Thomas Juul Hansen, design
ProjectA 23-story, 260-foot condo tower with 83 residences and up to 220,000 square feet (YIMBY). The original DOB filing lists 20 stories and 250 feet.
StatusTopped Out
Latest UpdateThe concrete structure topped out by early July 2026, with completion slated for mid-2027 (YIMBY). DOB issued a new temporary standpipe permit on Oct. 15, 2026.

A Bankrupt Tower, Revived

Casco Development bought the site for $50 million in 2014, and the project later went into bankruptcy with $527 million of debt, according to YIMBY. Legion took it over with a $56 million Deutsche Bank loan and a $155 million construction loan from Eldridge. Corcoran Sunshine is handling sales.

Sources: New York YIMBY (July 2026); NYC DOB BIS job 121187820 and permits for BIN 1091577 (accessed Oct. 2026)

6

273 West 22nd Street

Google Street View of 273 West 22nd Street, New York, NY
273 West 22nd Street, via Google Street View. — Imagery: Google Street View
Address/Location273 West 22nd Street
Developer/ApplicantTF Cornerstone; SLCE Architects, DOB applicant
ProjectA two-building rental development, an 18-story tower and a 9-story building, with 278 apartments and about 281,000 square feet (DOB, The Real Deal). A Community Board 4 briefing cited 217 apartments with 60 affordable; the affordable count has not been confirmed in a filing.
StatusFiled; Site Work Permitted
Latest UpdateDOB issued sprinkler and temporary standpipe permits on Sept. 2, 2026, but the new-building and foundation filings were still in objections as of Oct. 21, 2026.

One of the Few Big Projects Paying the 485-x Wage

The Real Deal reported that TF Cornerstone is one of the few developers of a Manhattan project with more than 100 units to opt into the 485-x tax incentive’s construction wage requirement, and that the company bought the lot in 2012 for $35 million. In July, Community Board 4 pressed the developer on where the affordable apartments would be placed in the buildings.

Sources: NYC DOB NOW job M01268347-I1 (accessed Oct. 2026); The Real Deal (June 2026); Citizen Portal (Community Board 4 summary) (July 2026)

7

335 and 345 West 25th Street

Google Street View of 335 West 25th Street, New York, NY
335 and 345 West 25th Street, via Google Street View. — Imagery: Google Street View
Address/Location335 West 25th Street, and 345 West 25th Street, the former St. Columba campus
Developer/ApplicantTimber Equities; Hill West Architects
ProjectTwo 14-story rental buildings with 99 and 98 apartments, 197 in all, each about 100,000 square feet, on the former campus of St. Columba Catholic church (DOB, The Real Deal).
StatusPermitted
Latest UpdateDOB issued excavation-support permits for 335 West 25th Street on July 30, 2026 and for 345 West 25th Street on Oct. 2, 2026. Foundation filings for both were approved in October.

Church Land Becomes Rentals

Timber Equities bought the church, school, convent and rectory site in August 2025, The Real Deal reported, and is using the 485-x tax incentive and the City of Yes affordable housing density bonus. TRD’s reporting gives the purchase price as both $48.5 million and $48.25 million.

Sources: NYC DOB NOW jobs M01305839-I1 and M01305858-I1 (accessed Oct. 2026); The Real Deal (Nov. 2025)

8

118 Tenth Avenue

Google Street View of 118 Tenth Avenue, New York, NY
118 Tenth Avenue, via Google Street View. — Imagery: Google Street View
Address/Location118 Tenth Avenue, beside the High Line
Developer/ApplicantToll Brothers; COOKFOX Architects
ProjectA 13-story condo building with 105 units on a long-vacant site between West 17th and 18th Streets. DOB lists about 239,800 square feet, far more than the roughly 85,000 square feet YIMBY reported the site could hold, which may point to a larger assemblage; that is unresolved.
StatusFiled (Plan Review)
Latest UpdateThe new-building application filed in March 2026 is still in DOB objections; curb-cut applications were filed on Oct. 5, 2026.

A $53 Million High Line Site

Toll Brothers bought the site for $53 million in February 2026, YIMBY reported. It had sat empty since demolition around 2019 to 2020, through a series of ground-lease changes and earlier office plans that never went ahead.

Sources: NYC DOB NOW job M01373235-I1 (accessed Oct. 2026); New York YIMBY (Feb. 2026)

9

212 West 29th Street

Google Street View of 212 West 29th Street, New York, NY
212 West 29th Street, via Google Street View. — Imagery: Google Street View
Address/Location212 West 29th Street
Developer/ApplicantLipa Engel (per YIMBY); DOB owner Slope Holdings NY; Lester Katz, architect of record
ProjectA slender 35-story, 353-foot rental tower with 78 apartments averaging about 564 square feet, replacing a four-story building (YIMBY).
StatusFiled (Plan Review)
Latest UpdateThe new-building application was filed with DOB on Oct. 18, 2026 and is in plan review, after demolition filings in September.

A Tall Tower on a Narrow Lot

This is one of the newest filings on the page and sits in the band rezoned by the Midtown South plan. Its residential area is about 44,000 square feet, per YIMBY; DOB lists about 56,000 square feet of total construction.

Sources: NYC DOB NOW job M01438369-I1 (accessed Oct. 2026); New York YIMBY (Oct. 2026)

10

540 West 29th Street

Google Street View of 540 West 29th Street, New York, NY
540 West 29th Street, via Google Street View. — Imagery: Google Street View
Address/Location540 West 29th Street
Developer/Applicant540 West 29 LLC (DOB owner); ARC Architecture + Design Studio, DOB applicant
ProjectA 14-story residential building with 76 units and about 90,700 square feet, just south of Hudson Yards and the High Line’s northern end.
StatusFiled (Plan Review)
Latest UpdateThe new-building application was filed on Oct. 14, 2026 and is in DOB plan review.

A New Filing at the High Line's Edge

A block away, a 12-story, 60-unit building at 536 West 28th Street has been approved by DOB since mid-2025 but has no work permits, making these two a small cluster to watch on the edge of Hudson Yards.

Sources: NYC DOB NOW jobs M01448586-I1 and M01141757-I1 (accessed Oct. 2026); Marketproof (Oct. 2026)

11

246 West 18th Street

Google Street View of 246 West 18th Street, New York, NY
246 West 18th Street, via Google Street View. — Imagery: Google Street View
Address/Location246 West 18th Street
Developer/ApplicantVerdevelopment; RyDE and Mao Architects
ProjectAn 11-story, about 120-foot mixed-use condo building with 21 residences (YIMBY and DOB; another DOB filing says 19), about 8,000 square feet of commercial space and 10 parking spaces.
StatusUnder Construction
Latest UpdateThe structure had reached the fifth floor in February 2026, with completion slated for March 2027 (YIMBY). DOB renewed the foundation, structural and general construction permits on Oct. 16 to 20, 2026.

Mid-Block Condos Rising

An earlier, 10-story plan for the site was withdrawn in favor of the current building, one of several boutique condos filling mid-block lots between Seventh and Eighth Avenues.

Sources: New York YIMBY (Feb. 2026); NYC DOB NOW job M01135836-I1 and permits for BIN 1013857 (accessed Oct. 2026)

12

The Myles (142 West 21st Street)

Google Street View of 142 West 21st Street, New York, NY
The Myles (142 West 21st Street), via Google Street View. — Imagery: Google Street View
Address/Location142 West 21st Street
Developer/ApplicantGrid Group; BKSK Architects
ProjectA 13-story, 135-foot luxury condo building with 22 residences averaging about 2,756 square feet and a 16-car garage (YIMBY).
StatusNearing Completion
Latest UpdateThe exterior is finished and the scaffolding is down, with all work expected to wrap by the end of 2026, YIMBY reported on Oct. 20, 2026.

Big Apartments Between Sixth and Seventh

The Myles reflects the luxury pattern on Chelsea’s eastern side: few, very large condos on an interior lot. Corcoran is handling sales.

Sources: New York YIMBY (Oct. 2026); NYC DOB NOW job M00766992-I1 (accessed Oct. 2026)

13

Hudson Arts Building (220 Eleventh Avenue)

Google Street View of 220 Eleventh Avenue, New York, NY
Hudson Arts Building (220 Eleventh Avenue), via Google Street View. — Imagery: Google Street View
Address/Location220 Eleventh Avenue
Developer/ApplicantThe Moinian Group; STUDIOS Architecture
ProjectA 10-story, roughly 200,000-to-210,000-square-foot office building on a full-block site over 7 train ventilation infrastructure (Moinian, Urbanize). DOB lists 9 stories and 148 feet.
StatusStalled at Foundation
Latest UpdateDOB renewed the foundation-only permit again on June 9, 2026, six years after work began. The building’s structural filing has not been approved.

Six Years of Foundation Permits

Work began in February 2020, paused for two years and resumed in early 2022, when Urbanize reported completion on pace for 2024. DOB records show only the foundation permit renewed every year since, with the structural application disapproved in 2019 and 2022. The “stalled” label is Hush Street’s reading of those records; the building is still being marketed for lease.

Sources: NYC DOB BIS job 121205463 and permits (accessed Oct. 2026); Urbanize New York (Feb. 2022); The Moinian Group

14

Mabel (335 Eighth Avenue)

Google Street View of 335 Eighth Avenue, New York, NY
Mabel (335 Eighth Avenue), via Google Street View. — Imagery: Google Street View
Address/Location335 Eighth Avenue, on Penn South land
Developer/ApplicantMAG Partners, selected by the Penn South cooperative; COOKFOX Architects
ProjectA seven-story, 188-unit mixed-income rental building with a Lidl grocery store, built to LEED Gold and Passive House standards.
StatusCompleted (2025)
Latest UpdateDOB issued the building’s first certificate of occupancy in July 2025 and renewed it on Sept. 17, 2026; apartments are leasing.

Infill on Co-op Land

Mabel shows another route to new housing in Chelsea: Penn South, the cooperative, chose a developer to build on part of its own campus.

Sources: NYC DOB NOW job M00600672-I1 and certificates of occupancy (accessed Oct. 2026); MAG Partners; CityRealty (Oct. 2026)

15

The Andrea (280 Eighth Avenue)

Google Street View of 280 Eighth Avenue, New York, NY
The Andrea (280 Eighth Avenue), via Google Street View. — Imagery: Google Street View
Address/Location280 Eighth Avenue
Developer/ApplicantRed Apple Group; SLCE Architects
ProjectA 12-story rental building (13 stories per YIMBY) with 104 apartments, 26 of them offered through the city’s affordable housing lottery at 40% to 130% of area median income.
StatusCompleted (2025)
Latest UpdateDOB issued the first certificate of occupancy on Oct. 15, 2025 and renewed it on Sept. 2, 2026. The affordable lottery closed in January 2026.

Newly Open on Eighth Avenue

The Andrea is one of two recently completed rentals on this stretch of Eighth Avenue, along with Mabel three blocks north.

Sources: NYC DOB NOW job M00696323-I1 and certificates of occupancy (accessed Oct. 2026); New York YIMBY (Nov. 2025)

What We're Watching Next

The first demolition permit at Fulton or Elliott-Chelsea Houses, and the outcome of the tenants’ lawsuit, will be the most consequential Chelsea news of the coming year. Watch also for new filings in the Midtown South rezoning area north of 23rd Street, and for what happens to 210 Seventh Avenue, where the city demolished a fire-gutted building that had sat abandoned for about two decades.

North of 30th Street, the Stewart Hotel conversion at 371 Seventh Avenue and Hudson Yards are outside this tracker. Downtown, Hush Street tracks Tribeca and the Financial District, and in Midtown, Midtown East.

Header photo: the Elliott-Chelsea Houses from the High Line’s 26th Street viewing spur, February 2025, by Tdorante10, via Wikimedia Commons, CC BY-SA 4.0.

By Updated Built from city filings and published reporting. About Hush Street