BuildingCensus

Least efficient large buildings in Philadelphia

Bottom 100 ENERGY STAR scores among buildings over 50,000 sq ft under Phila. Code §9-3402 / Building Energy Performance Program — the penalty-exposure watchlist. Flip side: most efficient →

Bottom 100 by ENERGY STAR score

#BuildingCityScoreSite EUIFloor area
1Wilson Park - CompliancePhiladelphiaD1213.0 kBtu/ft²669,781 sq ft
2New Covenant Church of PhiladelphiaPhiladelphiaD1122.2 kBtu/ft²417,877 sq ft
3Madison Avenue A LLCPhiladelphiaD1436.8 kBtu/ft²265,344 sq ft
4York House SouthPhiladelphiaD1151.3 kBtu/ft²165,402 sq ft
5Philadelphia Station ZPHI/191 - 14300 Townsend RoadPhiladelphiaD1138.0 kBtu/ft²154,048 sq ft
6Crowne Plaza Philadelphia WestPhiladelphiaD1674.2 kBtu/ft²112,823 sq ft
7Steven EizenPhiladelphiaD1580.8 kBtu/ft²101,000 sq ft
8Salvation Army- Booth FacilityPhiladelphiaD1100.8 kBtu/ft²98,060 sq ft
9Widener MemorialPhiladelphiaD1147.6 kBtu/ft²84,135 sq ft
10Liberties Walk Block 1 & 2 (lb34)PhiladelphiaD1114.9 kBtu/ft²81,920 sq ft
11Fishers Crossing Rlty LPPhiladelphiaD128374.0 kBtu/ft²76,728 sq ft
122628 Welsh CondominiumPhiladelphiaD1359.2 kBtu/ft²76,272 sq ft
13Philadelphia Cheesesteak CompanyPhiladelphiaD1430.9 kBtu/ft²76,000 sq ft
14ROBERTS AVEPhiladelphiaD1139.0 kBtu/ft²72,620 sq ft
15Germantown House: Germantown HousePhiladelphiaD1168.1 kBtu/ft²70,000 sq ft
16Germantown HousePhiladelphiaD1178.1 kBtu/ft²70,000 sq ft
17Park Towers ApartmentsPhiladelphiaD1202.8 kBtu/ft²67,241 sq ft
183333 S 3rd St, Philadelphia, PA 19148PhiladelphiaD1384.6 kBtu/ft²65,558 sq ft
19Old Shoe Factory Condo AssociationPhiladelphiaD1122.6 kBtu/ft²63,838 sq ft
202970 Market StreetPhiladelphiaD1310.7 kBtu/ft²60,000 sq ft
21Milrose Roosevelt LLCPhiladelphiaD1125460.7 kBtu/ft²59,481 sq ft
222121 GlendalePhiladelphiaD1100.1 kBtu/ft²58,893 sq ft
23Smylie Times Building - 2607 Rhawn StPhiladelphiaD1160.5 kBtu/ft²54,666 sq ft
24Urban Outfitters, Inc. - Building #010PhiladelphiaD1907.4 kBtu/ft²53,115 sq ft
25Frame FactoryPhiladelphiaD183.9 kBtu/ft²52,000 sq ft
26HENRY ON THE PARK - MorganPhiladelphiaD2122.6 kBtu/ft²713,859 sq ft
271701 Market StreetPhiladelphiaD2175.4 kBtu/ft²305,170 sq ft
28PLPH-Radisson Blu Warwick Hotel PAPhiladelphiaD2175.0 kBtu/ft²213,500 sq ft
29Select Nutrition-PhiladelphiaPhiladelphiaD258.1 kBtu/ft²100,000 sq ft
30Nellie Reynolds GardensPhiladelphiaD266.7 kBtu/ft²60,000 sq ft
31Ralston Mercy DouglassPhiladelphiaD398.0 kBtu/ft²56,784 sq ft
32South Philadelphia Station ZSPH/190 ??ƒ?? 1 Tinicum Island RoadPhiladelphiaD490.8 kBtu/ft²154,048 sq ft
334051 W Ford RdPhiladelphiaD472.5 kBtu/ft²112,064 sq ft
34MMS - Philly - St. Ignatius Senior HousingPhiladelphiaD490.2 kBtu/ft²93,877 sq ft
35NewCourtland Apartments at Cliveden, L.P.PhiladelphiaD466.4 kBtu/ft²57,209 sq ft
361150 MarketPhiladelphiaD591.7 kBtu/ft²290,594 sq ft
37VictoryPhiladelphiaD560.6 kBtu/ft²98,656 sq ft
38MMS - Philly - 5522 Arch StPhiladelphiaD566.6 kBtu/ft²83,250 sq ft
393226 Clifford StPhiladelphiaD584.3 kBtu/ft²55,985 sq ft
40Bromley HousePhiladelphiaD6120.7 kBtu/ft²103,912 sq ft
41700 Somerset StPhiladelphiaD683.4 kBtu/ft²70,200 sq ft
42Smylie Times BuildingPhiladelphiaD6144.3 kBtu/ft²60,750 sq ft
43Rays PropertiesPhiladelphiaD75.3 kBtu/ft²79,516 sq ft
44Marshalls Philadelphia DCPhiladelphiaD861.6 kBtu/ft²1,436,000 sq ft
45Charles Simon TrustPhiladelphiaD896.4 kBtu/ft²63,708 sq ft
46Philadelphia VA Medical CenterPhiladelphiaD9272.0 kBtu/ft²1,496,149 sq ft
47ONE uCity SquarePhiladelphiaD951.6 kBtu/ft²295,293 sq ft
48Gratz Data CenterPhiladelphiaD9208.1 kBtu/ft²75,108 sq ft
49R Investment Five LPPhiladelphiaD9376.9 kBtu/ft²55,000 sq ft
50The PiazzaPhiladelphiaD1065.8 kBtu/ft²163,400 sq ft
51Temple Episcopal HospitalPhiladelphiaD11318.9 kBtu/ft²442,145 sq ft
52US Treasury BuildingPhiladelphiaD1181.4 kBtu/ft²172,910 sq ft
532101 GLENDALE AVEPhiladelphiaD1175.6 kBtu/ft²85,253 sq ft
54Suffolk ManorPhiladelphiaD12107.4 kBtu/ft²115,000 sq ft
555720 Wissahickon AvenuePhiladelphiaD1251.7 kBtu/ft²74,340 sq ft
562045 Wheatsheef LainPhiladelphiaD13100.7 kBtu/ft²187,238 sq ft
571930 ChestnutPhiladelphiaD1369.4 kBtu/ft²133,168 sq ft
58Harrison Plaza - CompliancePhiladelphiaD1481.6 kBtu/ft²318,611 sq ft
59698-Skilled Nursing & Rehab-PhiladelphiaPhiladelphiaD14127.8 kBtu/ft²99,240 sq ft
602101 GlendalePhiladelphiaD1481.9 kBtu/ft²85,253 sq ft
61Watermark at Logan SquarePhiladelphiaD1566.4 kBtu/ft²455,000 sq ft
623600 Grays Ferry Ave (FedEx Express)PhiladelphiaD1562.1 kBtu/ft²260,552 sq ft
634401 ConshohockenPhiladelphiaD1583.3 kBtu/ft²80,000 sq ft
64UPS Oregon AvePhiladelphiaD1699.4 kBtu/ft²509,119 sq ft
652030 E.BYBERRY ROAD LLCPhiladelphiaD1634.0 kBtu/ft²75,370 sq ft
66A0000031 - SOFITEL_PHL_SPARTANSPhiladelphiaD17128.4 kBtu/ft²266,000 sq ft
67The ChathamPhiladelphiaD1754.0 kBtu/ft²85,328 sq ft
68Lannett CompanyPhiladelphiaD1748.2 kBtu/ft²66,000 sq ft
69Old City Presbyterian ApartmentsPhiladelphiaD1776.2 kBtu/ft²58,000 sq ft
7003-1-Philadelphia Head OfficePhiladelphiaD18138.7 kBtu/ft²816,208 sq ft
71Walnut TowersPhiladelphiaD18154.4 kBtu/ft²56,229 sq ft
72Walnut TowersPhiladelphiaD18154.4 kBtu/ft²56,229 sq ft
73DRUMMOND ROADPhiladelphiaD18121.3 kBtu/ft²51,024 sq ft
74Tower Place ApartmentsPhiladelphiaD1966.7 kBtu/ft²299,000 sq ft
75Scion: The RadianPhiladelphiaD1998.7 kBtu/ft²287,279 sq ft
76Procacci Brothers Sales Corp. B1PhiladelphiaD1971.6 kBtu/ft²192,054 sq ft
77Preferred Freezer Services-PhilaPhiladelphiaD1990.9 kBtu/ft²168,000 sq ft
781706 Rittenhouse SquarePhiladelphiaD1959.2 kBtu/ft²156,175 sq ft
79601 W Cliveden StPhiladelphiaD1984.0 kBtu/ft²61,508 sq ft
80The MetropolitanPhiladelphiaD2053.1 kBtu/ft²120,000 sq ft
81The Point at Rittenhouse Row - Panco ManagementPhiladelphiaD2056.2 kBtu/ft²95,134 sq ft
8257164- Residence Inn Philadelphia - Center CityPhiladelphiaD21107.0 kBtu/ft²243,058 sq ft
834400 Fairmount AvePhiladelphiaD2152.0 kBtu/ft²132,266 sq ft
84400 WalnutPhiladelphiaD2150.5 kBtu/ft²91,900 sq ft
85The CollinsPhiladelphiaD2244.8 kBtu/ft²195,399 sq ft
86Barratt New ChildsPhiladelphiaD22102.1 kBtu/ft²134,000 sq ft
87Avondale ApartmentsPhiladelphiaD2264.5 kBtu/ft²82,600 sq ft
88Green Tree School & ServicesPhiladelphiaD2257.7 kBtu/ft²63,000 sq ft
89BJs Wholesale - Quartermaster PlazaPhiladelphiaD2398.9 kBtu/ft²118,076 sq ft
90Aero Philadelphia, LLCPhiladelphiaD2367.3 kBtu/ft²74,460 sq ft
91ShallcrossPhiladelphiaD2369.3 kBtu/ft²67,938 sq ft
92West Park ApartmentsPhiladelphiaD24112.3 kBtu/ft²373,532 sq ft
9373R49-Philadelphia Ritz CarltonPhiladelphiaD24111.4 kBtu/ft²350,000 sq ft
94Scully Hathaway HousePhiladelphiaD2443.0 kBtu/ft²174,375 sq ft
95The AvenirPhiladelphiaD2465.5 kBtu/ft²140,000 sq ft
96Pratt BuildingPhiladelphiaD2458.4 kBtu/ft²78,000 sq ft
97Neumann NorthPhiladelphiaD2545.4 kBtu/ft²118,014 sq ft
981648 West Hunting Park Ave, Philadelphia, PA 19140PhiladelphiaD2533.2 kBtu/ft²72,000 sq ft
996200 WaynePhiladelphiaD2575.7 kBtu/ft²71,432 sq ft
100CMH Development LPPhiladelphiaD2789.3 kBtu/ft²268,565 sq ft

Frequently asked questions

Which large Philadelphia buildings have the worst energy grades?

Wilson Park - Compliance reports the lowest ENERGY STAR score (1) among Philadelphia buildings over 50,000 sq ft. Philadelphia's Building Energy Performance Program requires buildings over 50,000 sq ft to benchmark and complete tune-ups, with fines for failure to report.

Does a low score mean the building breaks the law?

No. A low ENERGY STAR score is a national efficiency percentile, not a violation. It does correlate with exposure under building-performance standards (carbon caps, retrofit mandates), which is why owners, lenders and retrofit contractors watch these lists.

Dataset updated . Source: Building Energy Benchmarking public disclosure.