Biggest building emitters in New York City

Top 100 by reported greenhouse-gas emissions under Local Law 84 (LL84), latest disclosure year per building. Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.

At a glance

Pratt S.I. Campus - Total is New York City's biggest reported building emitter, at 141,938 tCO₂e in its 2024 disclosure. The 100 buildings ranked here reported 3,776,211 tCO₂e together — 13% of the 28,783,729 tCO₂e disclosed by all 48,310 New York City buildings.

Top 100 by reported emissions

#	Building	City	Emissions	Score	Floor area
1	Pratt S.I. Campus - Total	New York City	141,938 tCO₂e	–—	438,530 sq ft
2	Co-Op City	New York City	138,481 tCO₂e	D46	21,150,159 sq ft
3	NYP Columbia (West Campus)	New York City	132,358 tCO₂e	D12	5,144,107 sq ft
4	Benchmarking Group - 211	New York City	93,318 tCO₂e	–—	5,970,773 sq ft
5	Franklin Plaza 1656	New York City	85,851 tCO₂e	D1	1,838,700 sq ft
6	Columbia University Main Campus	New York City	85,124 tCO₂e	–—	6,890,880 sq ft
7	NYU: Washington Square CoGen Campus	New York City	80,240 tCO₂e	–—	7,553,129 sq ft
8	LL84 NYU Langone Health - Main Campus	New York City	76,581 tCO₂e	–—	3,532,083 sq ft
9	Parkchester Full Campus (North + South)	New York City	72,078 tCO₂e	D28	12,817,770 sq ft
10	Rockefeller Center (All Bldgs)	New York City	71,221 tCO₂e	–—	8,053,115 sq ft
11	Rochdale Village - Campus	New York City	69,444 tCO₂e	D9	7,898,975 sq ft
12	Hudson Yards Cogen Campus	New York City	68,380 tCO₂e	–—	7,739,076 sq ft
13	MSKCC - Super Campus -(Main Campus / Schwartz / RRL/ ZRC )	New York City	63,172 tCO₂e	–—	2,437,399 sq ft
14	CEPSR Schapiro	New York City	60,211 tCO₂e	–—	207,940 sq ft
15	AECOM College, Laboratory Spaces and Weiler Campus	New York City	59,462 tCO₂e	–—	2,173,486 sq ft
16	NYP Cornell (East Campus)	New York City	55,574 tCO₂e	D47	2,801,795 sq ft
17	111 Eighth Avenue	New York City	53,701 tCO₂e	–—	2,375,706 sq ft
18	Moses Campus	New York City	52,888 tCO₂e	–—	1,590,710 sq ft
19	DEP > BWT_9611_Newtown Creek WPCP Campus	New York City	51,516 tCO₂e	D1	1,306,271 sq ft
20	Benchmarking Group - 212	New York City	51,477 tCO₂e	–—	3,472,597 sq ft
21	2020 East Tremont Avenue	New York City	49,023 tCO₂e	D1	2,409,161 sq ft
22	1980-2040 East Tremont Avenue - Parent Property	New York City	49,023 tCO₂e	D1	2,820,651 sq ft
23	MSKCC Super Campus - Main Campus / RRL / ZRC	New York City	48,737 tCO₂e	–—	2,490,355 sq ft
24	NH LIJ ZH Hospital Campus	New York City	47,836 tCO₂e	D12	1,699,445 sq ft
25	P&S - Black	New York City	47,833 tCO₂e	–—	721,049 sq ft
26	P&S - Black LL97	New York City	47,833 tCO₂e	–—	721,049 sq ft
27	DEP > BWT_859_Wards Island WPCP Campus	New York City	46,043 tCO₂e	D20	1,546,246 sq ft
28	Benchmarking Group - 38	New York City	45,282 tCO₂e	A93	2,381,204 sq ft
29	Moses Campus	New York City	44,394 tCO₂e	D30	1,715,442 sq ft
30	NH LIJ Hillside Campus	New York City	43,849 tCO₂e	D21	1,729,945 sq ft
31	NH LIJ Medical	New York City	42,561 tCO₂e	D15	1,575,735 sq ft
32	Stuyvesant Town	New York City	39,464 tCO₂e	B83	9,055,218 sq ft
33	1300 Morris Park Avenue	New York City	39,017 tCO₂e	–—	572,892 sq ft
34	Benchmarking Group - 226	New York City	38,988 tCO₂e	–—	2,345,603 sq ft
35	Benchmarking Group - 10	New York City	38,540 tCO₂e	–—	3,385,955 sq ft
36	388 Greenwich - HQ	New York City	38,264 tCO₂e	B82	2,329,941 sq ft
37	H+H_9691_Bellevue Hospital: Center	New York City	37,776 tCO₂e	A91	2,276,300 sq ft
38	20-30 Hudson Yards	New York City	34,862 tCO₂e	–—	3,810,623 sq ft
39	30 Rockefeller Plaza (Bld 1 & 9)	New York City	34,855 tCO₂e	–—	2,862,565 sq ft
40	Western Union Building	New York City	34,247 tCO₂e	–—	1,028,016 sq ft
41	1250-1300 Morris Park Avenue (South Campus, Lot 1)	New York City	33,437 tCO₂e	–—	911,540 sq ft
42	CIG MMA_4427_Metropolitan Museum of Art	New York City	33,134 tCO₂e	–—	2,153,282 sq ft
43	Warbasse House	New York City	31,947 tCO₂e	D38	3,438,544 sq ft
44	RIIS/RIIS II/WALD/BARUCH/BARUCH HOUSES ADDITION CAMPUS	New York City	31,233 tCO₂e	C65	5,348,775 sq ft
45	H+H_4318_Kings County Hospital: Buildings A, B, C	New York City	30,242 tCO₂e	D2	658,920 sq ft
46	Benchmarking Group - 33	New York City	29,734 tCO₂e	–—	2,518,921 sq ft
47	Deutsche Bank Center	New York City	29,493 tCO₂e	–—	2,598,958 sq ft
48	RED HOOK EAST/RED HOOK WEST CAMPUS	New York City	28,110 tCO₂e	D2	2,728,410 sq ft
49	Benchmarking Group - 23	New York City	27,497 tCO₂e	A94	1,654,909 sq ft
50	KERN57 - 303 East 57th Street	New York City	27,242 tCO₂e	D1	539,027 sq ft
51	JOHNSON	New York City	27,122 tCO₂e	D1	1,261,187 sq ft
52	DEP > BWT_840_North River WPCP Campus	New York City	26,978 tCO₂e	D9	1,129,933 sq ft
53	PENN 1 (LL97)	New York City	26,265 tCO₂e	–—	2,488,353 sq ft
54	One Bryant Park	New York City	25,651 tCO₂e	C62	2,237,686 sq ft
55	Main Campus - Lot 05 (Part of MSKCC - Main Campus / RRL / ZRC)	New York City	24,657 tCO₂e	–—	1,208,625 sq ft
56	Benchmarking Group - 8	New York City	23,553 tCO₂e	A90	1,289,724 sq ft
57	JOHNSON/JEFFERSON CAMPUS	New York City	23,489 tCO₂e	D10	2,758,857 sq ft
58	Brooklyn Army Terminal - Campus	New York City	23,485 tCO₂e	–—	3,926,973 sq ft
59	CIG > LCPA_CAMPUS ON CMP	New York City	22,795 tCO₂e	–—	2,396,331 sq ft
60	55 Water	New York City	22,761 tCO₂e	B78	3,486,407 sq ft
61	DEP > BWT_9609_Hunts Point WPCP Campus	New York City	22,547 tCO₂e	B74	509,197 sq ft
62	Benchmarking Group - 115	New York City	22,251 tCO₂e	D31	1,081,100 sq ft
63	H+H_4327_Woodhull Medical and Mental Health Center	New York City	22,171 tCO₂e	D20	1,075,702 sq ft
64	New York Marriott Marquis Hotel - LL84	New York City	22,045 tCO₂e	D22	1,943,287 sq ft
65	32 Sixth Avenue	New York City	21,859 tCO₂e	–—	1,128,856 sq ft
66	Jerome L Greene Science Center/Lenfest Center for the Arts	New York City	21,736 tCO₂e	–—	607,803 sq ft
67	Maimonides - Main Campus	New York City	21,706 tCO₂e	C60	895,621 sq ft
68	One New York Plaza (13 SOUTH STREET)	New York City	21,686 tCO₂e	C59	2,542,563 sq ft
69	DEP > BWT_9607_Bowery Bay WPCP Campus	New York City	21,467 tCO₂e	B77	1,417,230 sq ft
70	Benchmarking Group - 51	New York City	21,436 tCO₂e	–—	2,516,390 sq ft
71	CBS Broadcast Center	New York City	21,401 tCO₂e	–—	737,480 sq ft
72	H+H_4295_Jacobi Medical Center: Jacobi Building	New York City	21,379 tCO₂e	D7	716,550 sq ft
73	Benchmarking Group - 218	New York City	21,163 tCO₂e	–—	457,900 sq ft
74	DEP_9921_Croton Water Treatment Plant	New York City	21,133 tCO₂e	–—	456,500 sq ft
75	Zuckerman Research Center - (Child of MSKCC Super Campus)	New York City	21,071 tCO₂e	–—	703,782 sq ft
76	Morningside Campus Parent	New York City	21,054 tCO₂e	–—	1,039,510 sq ft
77	New York Presbyterian- Brooklyn Methodist Hospital	New York City	21,034 tCO₂e	A96	1,451,790 sq ft
78	1633 Broadway - Paramount Plaza	New York City	21,025 tCO₂e	B75	2,837,932 sq ft
79	Woodhull Medical & Mental Health Center	New York City	20,700 tCO₂e	B73	1,321,320 sq ft
80	Metlife Building (200 Park)	New York City	20,663 tCO₂e	C69	2,993,388 sq ft
81	Westview - 595-625 Main Street	New York City	20,662 tCO₂e	–—	526,933 sq ft
82	1260 Avenue of the Americas (Bld 18) (Radio City)	New York City	20,323 tCO₂e	–—	1,003,272 sq ft
83	North Shore Towers Campus	New York City	20,226 tCO₂e	–—	3,477,147 sq ft
84	1211 Avenue of the Americas	New York City	20,081 tCO₂e	–—	2,005,345 sq ft
85	SHEEPSHEAD BAY/NOSTRAND CAMPUS	New York City	20,059 tCO₂e	D5	2,159,000 sq ft
86	1221 Avenue of the Americas	New York City	19,685 tCO₂e	A86	2,636,182 sq ft
87	Benchmarking Group - 17	New York City	19,684 tCO₂e	–—	641,893 sq ft
88	WHITMAN/INGERSOLL CAMPUS	New York City	19,591 tCO₂e	D44	2,870,100 sq ft
89	Fordham Rose Hill Campus	New York City	19,571 tCO₂e	–—	2,308,041 sq ft
90	Benchmarking Group - 45	New York City	19,387 tCO₂e	A97	1,162,258 sq ft
91	345 Park Ave LP	New York City	19,363 tCO₂e	D47	1,783,232 sq ft
92	277 Park Avenue	New York City	19,287 tCO₂e	C55	1,745,856 sq ft
93	CIG > AMNH_50_American Museum of Natural History	New York City	19,228 tCO₂e	–—	1,820,000 sq ft
94	H+H_4330_Elmhurst Hospital: Main Building	New York City	18,905 tCO₂e	D49	961,932 sq ft
95	Zuckerman Research Center - Part MSK Campus	New York City	18,714 tCO₂e	–—	728,239 sq ft
96	1211 Avenue of the Americas	New York City	18,440 tCO₂e	C56	2,023,847 sq ft
97	NH Lenox Hill Hospital Campus	New York City	18,362 tCO₂e	C64	850,896 sq ft
98	David H Koch Center	New York City	18,334 tCO₂e	D14	878,098 sq ft
99	Brookdale Hospital - Parent Property	New York City	18,288 tCO₂e	D45	1,028,731 sq ft
100	POMONOK	New York City	18,222 tCO₂e	D6	2,232,000 sq ft

What do New York City's biggest-emitting buildings have in common?

By property type the list is led by hospital (general medical & surgical) (26), multifamily housing (17) and office (15). Their average site EUI is 363.6 kBtu/ft², about 372% above the citywide average of 77.0 kBtu/ft². Combined they cover 256.9 million square feet; the median ranked building has 2,005,345 sq ft.

The ranking orders New York City's disclosed buildings by total reported greenhouse-gas emissions in their latest report year; figures far outside what a building of that type and size can emit are treated as data-entry errors and left out.

More New York City rankings and data

Frequently asked questions

Which New York City building emits the most carbon?

Pratt S.I. Campus - Total reported 141,938 tCO₂e in its latest Local Law 84 (LL84) disclosure — the highest in New York City. Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.

About this data

Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 28, 2026. See the methodology for how records are matched, cleaned and scored.

Cite as: BuildingCensus, “Biggest-emitting buildings in New York City”, https://buildingcensus.com/rankings/biggest-emitters/new-york-city (data as of October 28, 2026).