BuildingCensus

Biggest building emitters in Montgomery County

Top 100 by reported greenhouse-gas emissions under Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21), latest disclosure year per building. Montgomery County's BEPS (Bill 16-21) sets declining site-EUI performance standards for covered buildings, phasing in from 2025 with compliance obligations for buildings above interim targets.

Top 100 by reported emissions

#BuildingCityEmissionsScoreFloor area
1One Medimmune WayMontgomery County25,631 tCO₂e–—887,751 sq ft
2Holy Cross Silver Spring-HospMontgomery County16,927 tCO₂eD25782,190 sq ft
3Ahc Rockville CampusMontgomery County15,505 tCO₂eD11687,457 sq ft
4Suburban Hospital-Hospital (General Medical &Amp; Surgical)Montgomery County13,256 tCO₂eD23717,272 sq ft
59800 Medical Center DriveMontgomery County11,216 tCO₂e–—282,436 sq ft
6Hughes Network Systems ExplorationMontgomery County9,247 tCO₂eD6311,475 sq ft
7White Oak Medical CenterMontgomery County8,801 tCO₂eB71754,664 sq ft
8Gsk - Slaoui Center For Vaccines ResearchMontgomery County8,679 tCO₂e–—635,058 sq ft
9Montgomery Medical CenterMontgomery County8,202 tCO₂eD31531,860 sq ft
10Wheaton MallMontgomery County7,400 tCO₂e–—1,354,166 sq ft
11Holy Cross Germantown-HospitalMontgomery County6,979 tCO₂eD16285,451 sq ft
12Qiagen Sciences - GermantownMontgomery County6,467 tCO₂e–—263,815 sq ft
1320441 Century BoulevardMontgomery County5,449 tCO₂e–—114,067 sq ft
14MontgomeryMontgomery County5,432 tCO₂e–—933,475 sq ft
15The United States Pharmacopeial ConventionMontgomery County5,213 tCO₂eD1229,000 sq ft
16770 - Summit HillsMontgomery County4,958 tCO₂eA901,585,679 sq ft
17Plaza Corporate HeadquartersMontgomery County4,905 tCO₂eC67600,000 sq ft
185600 Fishers LaneMontgomery County4,834 tCO₂eA901,403,544 sq ft
19Public Safety HeadquartersMontgomery County4,808 tCO₂eD50373,116 sq ft
20Promenade Towers Mutual Housing CorporationMontgomery County4,641 tCO₂eB811,353,674 sq ft
21Dc/Glc 10138/Fairland Data Ctr/13101 Columbia Pike/Silver Spring/MdMontgomery County4,458 tCO₂e–—356,179 sq ft
22Regenxbio 9804 McdMontgomery County4,368 tCO₂e–—175,000 sq ft
23Parkside CondominiumMontgomery County4,295 tCO₂eD37936,747 sq ft
24Silver Spring Data CenterMontgomery County4,294 tCO₂eB7591,373 sq ft
25The Wilson And The Elm (Lm103)Montgomery County4,288 tCO₂eB77986,739 sq ft
26Prosperity Drive Data CenterMontgomery County4,082 tCO₂e–—228,144 sq ft
27The Willoughby (4515 Willard Ave.)Montgomery County3,683 tCO₂eA871,004,163 sq ft
281330 Piccard DriveMontgomery County3,608 tCO₂e–—131,511 sq ft
29Marriott InternationalMontgomery County3,579 tCO₂eB75796,125 sq ft
305625 Fishers LaneMontgomery County3,558 tCO₂e–—153,385 sq ft
31(Landlord Controlled) 8057-Clarksburg Premium OutletsMontgomery County3,523 tCO₂e–—457,370 sq ft
32National Cancer InstituteMontgomery County3,521 tCO₂eA89609,966 sq ft
33WashingtonianMontgomery County3,459 tCO₂e–—318,229 sq ft
34Potomac Oaks CondominiumMontgomery County3,370 tCO₂eD25602,796 sq ft
35Howard Hughes Medical InstituteMontgomery County3,318 tCO₂eD7272,046 sq ft
367501 Wisconsin Ave.Montgomery County3,307 tCO₂eB75747,869 sq ft
37M C Correctional FacilityMontgomery County3,301 tCO₂e–—305,000 sq ft
38The Gateway (Ey) (Gt056)Montgomery County3,240 tCO₂eC57803,053 sq ft
39Willard Towers - Air (Wl151)Montgomery County3,107 tCO₂eB72745,325 sq ft
40Bmr-9704 Medical Center DriveMontgomery County3,070 tCO₂e–—122,641 sq ft
41Krg Gaithersburg Downtown Crown LlcMontgomery County3,036 tCO₂e–—253,527 sq ft
4265010-Sunrise Fox HillMontgomery County2,930 tCO₂eD32720,298 sq ft
439811 Washingtonian BlvdMontgomery County2,910 tCO₂e–—190,027 sq ft
44Bethesda North Marriott Hotel And Convention CenterMontgomery County2,891 tCO₂eD11387,982 sq ft
459 W Watkins MillMontgomery County2,865 tCO₂e–—92,449 sq ft
46Ingleside At King Farm PresbyterianMontgomery County2,865 tCO₂eA921,016,656 sq ft
47Adm/Glc 05119/13100 Columbia Pike/Silver Spring/MdMontgomery County2,792 tCO₂eB75730,000 sq ft
48Gateway 270 Business CenterMontgomery County2,774 tCO₂e–—250,465 sq ft
496121-6125 Montrose Rd - Wasserman.Slaven (6121) + Jssa (6123) + Jcc (6125)Montgomery County2,709 tCO₂eD28210,150 sq ft
50Md2171 - Gaithersburg Medical CenterMontgomery County2,706 tCO₂eD16202,426 sq ft
51117620-Kentlands Market Square (Spaces 1-62)Montgomery County2,676 tCO₂e–—241,613 sq ft
52The GrandMontgomery County2,648 tCO₂eB84640,203 sq ft
53Cider MillMontgomery County2,599 tCO₂eA85804,385 sq ft
54Arrive Silver SpringMontgomery County2,582 tCO₂eA91798,282 sq ft
55Key West Md Owner, LlcMontgomery County2,580 tCO₂e–—294,787 sq ft
56700 Quince Orchard RoadMontgomery County2,502 tCO₂e–—171,239 sq ft
57Washington Adventist UniversityMontgomery County2,494 tCO₂e–—499,420 sq ft
58Bethesda Park CondominiumMontgomery County2,435 tCO₂eB79719,350 sq ft
59National Institute For Allergy And Infectious DiseasesMontgomery County2,406 tCO₂eA99515,717 sq ft
60709 Bethesda Md HrMontgomery County2,394 tCO₂eD37368,260 sq ft
61The Elizabeth CondominiumMontgomery County2,367 tCO₂eC65526,084 sq ft
62910 Clopper RoadMontgomery County2,362 tCO₂eD5180,650 sq ft
63Seneca Village ApartmentsMontgomery County2,326 tCO₂eA89737,362 sq ft
64Montgomery White Oak (Mn166)Montgomery County2,318 tCO₂eD44503,430 sq ft
65Galvan (Rk13)Montgomery County2,289 tCO₂eB74458,635 sq ft
66Ssmc IiiMontgomery County2,250 tCO₂eA90569,570 sq ft
67White Oak TowersMontgomery County2,227 tCO₂eD11344,400 sq ft
68North Bethesda Market (Nr41, Nr47)Montgomery County2,214 tCO₂eA91663,045 sq ft
69The Barrett (Br846,Br851)Montgomery County2,199 tCO₂eD48440,443 sq ft
70Ike Leggett Executive Office BuildingMontgomery County2,182 tCO₂e–—204,976 sq ft
71Tssm F - WegmansMontgomery County2,169 tCO₂eD47124,650 sq ft
72Sm 5Montgomery County2,129 tCO₂e–—62,659 sq ft
731405 Research BlvdMontgomery County2,113 tCO₂e–—72,170 sq ft
74Jerome H. Holland LaboratoryMontgomery County2,093 tCO₂e–—116,072 sq ft
758500 River Rd, Bethesda, Md 20817Montgomery County2,089 tCO₂e–—268,992 sq ft
76Lakeside PlazaMontgomery County2,066 tCO₂eD9141,567 sq ft
77Enclave Apartments €“ Building AMontgomery County2,048 tCO₂eB76484,070 sq ft
78Arrive North BethesdaMontgomery County2,047 tCO₂eD50442,153 sq ft
79The Atrium At Rock Spring ParkMontgomery County2,045 tCO₂eC66236,012 sq ft
80Heron'S Cove CondominiumMontgomery County2,018 tCO₂eC69578,318 sq ft
81Costco #01124 WheatonMontgomery County2,014 tCO₂eD49152,545 sq ft
82The Music Center At StrathmoreMontgomery County2,012 tCO₂e–—200,159 sq ft
83General Conference Corporation Of Seventh-Day Adventist 1Montgomery County1,986 tCO₂eC62352,000 sq ft
84Montrose Crossing- 25001101Montgomery County1,985 tCO₂e–—387,346 sq ft
85Wisconsin Place - 29881Montgomery County1,979 tCO₂eD47479,723 sq ft
86Germantown, Md (Ge034)Montgomery County1,947 tCO₂eD44165,298 sq ft
8735 West Watkins Mill RoadMontgomery County1,946 tCO₂e–—52,351 sq ft
88Enclave Apartments €“ Building BMontgomery County1,943 tCO₂eB80484,070 sq ft
89Three White FlintMontgomery County1,941 tCO₂eB84385,453 sq ft
90Inventa (Nv036,Vn099)Montgomery County1,931 tCO₂e–—550,000 sq ft
91220 - ChateauMontgomery County1,930 tCO₂eB74493,878 sq ft
9260029-Maplewood Park PlaceMontgomery County1,929 tCO₂eD39409,000 sq ft
93Bethesda Towers - North And SouthMontgomery County1,927 tCO₂eC65373,258 sq ft
94Avocet Tower Office & Ac Bethesda Hotel (Benchmarking)Montgomery County1,909 tCO₂e–—547,730 sq ft
9511800 Tech RdMontgomery County1,890 tCO₂e–—241,755 sq ft
96The Metropolitan (Me090) (Me127) (Me128) (Me129)Montgomery County1,889 tCO₂eD7316,668 sq ft
97Eo - Corporate HeadquarterMontgomery County1,883 tCO₂eC61308,956 sq ft
98Enclave Apartments €“ Building CMontgomery County1,877 tCO₂eB76445,595 sq ft
99Century Technology CampusMontgomery County1,876 tCO₂e–—54,016 sq ft
10012735 Twinbrook ParkwayMontgomery County1,871 tCO₂e–—76,520 sq ft

Frequently asked questions

Which Montgomery County building emits the most carbon?

One Medimmune Way reported 25,631 tCO₂e in its latest Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) disclosure — the highest in Montgomery County. Montgomery County's BEPS (Bill 16-21) sets declining site-EUI performance standards for covered buildings, phasing in from 2025 with compliance obligations for buildings above interim targets.

Dataset updated . Source: Commercial Building Energy Benchmarking public disclosure.