Most efficient large buildings in Philadelphia

Top 100 ENERGY STAR scores among buildings over 50,000 sq ft under Phila. Code §9-3402 / Building Energy Performance Program. Flip side: least efficient →

Top 100 by ENERGY STAR score

#	Building	City	Score	Site EUI	Floor area
1	(PA2459) - Toll Naval Square	Philadelphia	A100	16.9 kBtu/ft²	878,176 sq ft
2	3535 Market	Philadelphia	A100	34.4 kBtu/ft²	503,408 sq ft
3	1700 Associates	Philadelphia	A100	4.7 kBtu/ft²	348,564 sq ft
4	Fairhill	Philadelphia	A100	7.9 kBtu/ft²	298,032 sq ft
5	Club Quarters Hotel Philadelphia	Philadelphia	A100	30.2 kBtu/ft²	264,618 sq ft
6	3300N9 PROPERTIES LLC	Philadelphia	A100	1.2 kBtu/ft²	197,290 sq ft
7	GT Penn & LTSR	Philadelphia	A100	17.0 kBtu/ft²	182,687 sq ft
8	13109-51 Bustleton Ave	Philadelphia	A100	19.6 kBtu/ft²	179,718 sq ft
9	The Wolf Building	Philadelphia	A100	18.5 kBtu/ft²	165,000 sq ft
10	York House North	Philadelphia	A100	57.3 kBtu/ft²	149,689 sq ft
11	7650 Crittenden St	Philadelphia	A100	16.4 kBtu/ft²	148,293 sq ft
12	Salus University	Philadelphia	A100	15.7 kBtu/ft²	135,000 sq ft
13	Fitzsimon	Philadelphia	A100	—	133,000 sq ft
14	Angela Court	Philadelphia	A100	16.0 kBtu/ft²	132,267 sq ft
15	Cedar Views Apartments	Philadelphia	A100	11.8 kBtu/ft²	130,300 sq ft
16	Scotts Mills	Philadelphia	A100	16.7 kBtu/ft²	126,339 sq ft
17	Scottish Rite House	Philadelphia	A100	15.1 kBtu/ft²	112,670 sq ft
18	Forest Station	Philadelphia	A100	55.3 kBtu/ft²	110,380 sq ft
19	St. Monica Center	Philadelphia	A100	30.2 kBtu/ft²	100,000 sq ft
20	Chelten Lofts	Philadelphia	A100	6.6 kBtu/ft²	96,824 sq ft
21	Aero Phila, LP	Philadelphia	A100	3.2 kBtu/ft²	93,930 sq ft
22	Church of God Non Sectarian	Philadelphia	A100	1.5 kBtu/ft²	86,052 sq ft
23	10274-Andorra - Solar	Philadelphia	A100	29.1 kBtu/ft²	82,784 sq ft
24	Avondale Apts	Philadelphia	A100	3.4 kBtu/ft²	82,600 sq ft
25	Peirce WS	Philadelphia	A100	6.8 kBtu/ft²	76,630 sq ft
26	Fairhill	Philadelphia	A100	—	75,800 sq ft
27	401 East Roosevelt Blvd	Philadelphia	A100	21.8 kBtu/ft²	73,983 sq ft
28	Beech Interplex	Philadelphia	A100	30.7 kBtu/ft²	70,006 sq ft
29	MRA Realty	Philadelphia	A100	25.7 kBtu/ft²	68,776 sq ft
30	Terrace Apartments	Philadelphia	A100	18.6 kBtu/ft²	68,550 sq ft
31	Lindley Court Apartments	Philadelphia	A100	9.6 kBtu/ft²	65,373 sq ft
32	Peirce TM	Philadelphia	A100	7.3 kBtu/ft²	62,000 sq ft
33	Produce Garden	Philadelphia	A100	0.8 kBtu/ft²	58,740 sq ft
34	Verona Plaza	Philadelphia	A100	33.8 kBtu/ft²	58,656 sq ft
35	W.E. Martin	Philadelphia	A100	13.8 kBtu/ft²	58,000 sq ft
36	Willows Apartments	Philadelphia	A100	14.0 kBtu/ft²	56,280 sq ft
37	7205-15 Rising Sun	Philadelphia	A100	11.2 kBtu/ft²	54,300 sq ft
38	1617 Poplar Street	Philadelphia	A100	3.7 kBtu/ft²	54,100 sq ft
39	crbuilding	Philadelphia	A100	11.4 kBtu/ft²	50,525 sq ft
40	1011 Race St	Philadelphia	A100	16.4 kBtu/ft²	50,100 sq ft
41	Cheltenham Station	Philadelphia	A100	38.5 kBtu/ft²	50,000 sq ft
42	7715 Crittenden Street	Philadelphia	A99	21.8 kBtu/ft²	638,776 sq ft
43	(71155A) NORTHEAST	Philadelphia	A99	21.0 kBtu/ft²	311,186 sq ft
44	Yugo Philadelphia Carriage House	Philadelphia	A99	23.2 kBtu/ft²	133,000 sq ft
45	KlingStubbins	Philadelphia	A99	28.3 kBtu/ft²	105,000 sq ft
46	Christ the King	Philadelphia	A99	26.7 kBtu/ft²	100,012 sq ft
47	Coronado Condominiums	Philadelphia	A99	31.7 kBtu/ft²	65,000 sq ft
48	LEHIGH PARK I	Philadelphia	A98	57.0 kBtu/ft²	98,004 sq ft
49	MT. TABOR SR. CYBER VILLAGE	Philadelphia	A98	20.9 kBtu/ft²	59,095 sq ft
50	5215 Schuyler	Philadelphia	A98	35.3 kBtu/ft²	51,000 sq ft
51	MMS - Philly - 1011 Race Street	Philadelphia	A98	49.7 kBtu/ft²	50,100 sq ft
52	097-HXPhiladelphia	Philadelphia	A97	43.0 kBtu/ft²	319,992 sq ft
53	Joshua House	Philadelphia	A97	31.4 kBtu/ft²	283,262 sq ft
54	2101 Winchester Ave	Philadelphia	A97	38.9 kBtu/ft²	70,308 sq ft
55	2801 Grant Avenue	Philadelphia	A97	25.7 kBtu/ft²	61,240 sq ft
56	2239 West Montgomery Ave	Philadelphia	A97	33.5 kBtu/ft²	57,200 sq ft
57	9503 State Rd	Philadelphia	A96	25.3 kBtu/ft²	152,835 sq ft
58	MMS - Philly - Angela Court	Philadelphia	A96	37.3 kBtu/ft²	132,266 sq ft
59	MMS - Philly - 2103 W Godfrey Avenue (6201 Wister)	Philadelphia	A96	39.7 kBtu/ft²	106,640 sq ft
60	Somerset Villas Inc	Philadelphia	A96	46.0 kBtu/ft²	79,355 sq ft
61	Regency House	Philadelphia	A96	66.3 kBtu/ft²	64,700 sq ft
62	West Hunting Park LLC	Philadelphia	A96	3.5 kBtu/ft²	64,430 sq ft
63	Westmoreland 2150 LP	Philadelphia	A96	4.3 kBtu/ft²	63,360 sq ft
64	Girard Court Apartments	Philadelphia	A96	57.1 kBtu/ft²	60,984 sq ft
65	Edgewater	Philadelphia	A95	30.4 kBtu/ft²	396,792 sq ft
66	Orlowitz Building	Philadelphia	A95	35.6 kBtu/ft²	206,840 sq ft
67	Frankford Ave SC - Mealey's Furniture	Philadelphia	A95	33.5 kBtu/ft²	166,909 sq ft
68	Procacci Brothers Sales Corp. B5	Philadelphia	A95	14.4 kBtu/ft²	99,545 sq ft
69	Liberty Square Building 3	Philadelphia	A95	20.2 kBtu/ft²	55,706 sq ft
70	7th Heaven Investments	Philadelphia	A95	7.8 kBtu/ft²	51,138 sq ft
71	8020 Algon	Philadelphia	A95	45.8 kBtu/ft²	50,840 sq ft
72	Cira Square Parent	Philadelphia	A94	56.2 kBtu/ft²	1,076,400 sq ft
73	401 Domino Lane	Philadelphia	A94	15.3 kBtu/ft²	303,224 sq ft
74	4655-4661 Lancaster Avenue	Philadelphia	A94	13.6 kBtu/ft²	108,358 sq ft
75	275-99 Geiger rd	Philadelphia	A94	5.3 kBtu/ft²	88,832 sq ft
76	cathedral ss. peter and paul	Philadelphia	A94	17.5 kBtu/ft²	50,000 sq ft
77	1500 Locust	Philadelphia	A93	40.8 kBtu/ft²	887,048 sq ft
78	266 Philadelphia PA WEST	Philadelphia	A93	59.2 kBtu/ft²	240,006 sq ft
79	Paloma University City (ln060)	Philadelphia	A93	30.2 kBtu/ft²	142,199 sq ft
80	List Associates	Philadelphia	A93	39.5 kBtu/ft²	127,785 sq ft
81	BOYD - Philadelphia PA GSA, LLC (DEA)	Philadelphia	A93	13.7 kBtu/ft²	123,228 sq ft
82	Wynnefield Terrace Associates LP	Philadelphia	A93	71.4 kBtu/ft²	109,750 sq ft
83	6610-12 Germantown Avenue	Philadelphia	A93	24.7 kBtu/ft²	53,000 sq ft
84	THE CHESTNUT	Philadelphia	A92	37.5 kBtu/ft²	395,800 sq ft
85	HUP 54th Street	Philadelphia	A92	165.7 kBtu/ft²	391,769 sq ft
86	1352 Lofts	Philadelphia	A92	35.1 kBtu/ft²	150,433 sq ft
87	Casa Farnese	Philadelphia	A92	63.5 kBtu/ft²	137,400 sq ft
88	Study Philadelphia Operating LLC	Philadelphia	A92	54.3 kBtu/ft²	134,000 sq ft
89	Diamond Green	Philadelphia	A92	46.4 kBtu/ft²	129,330 sq ft
90	Residence Inn Philadelphia Airport	Philadelphia	A92	65.1 kBtu/ft²	95,000 sq ft
91	The Becker Building	Philadelphia	A92	35.9 kBtu/ft²	87,000 sq ft
92	13451 Damar Drive	Philadelphia	A92	10.0 kBtu/ft²	66,600 sq ft
93	Domino Lane Apartments	Philadelphia	A92	55.7 kBtu/ft²	63,918 sq ft
94	1600 S Warfield St	Philadelphia	A91	26.3 kBtu/ft²	420,000 sq ft
95	Hilton Philadelphia-Homewood Suites	Philadelphia	A91	56.9 kBtu/ft²	258,000 sq ft
96	Family Court-CLOSED	Philadelphia	A91	46.0 kBtu/ft²	250,000 sq ft
97	Commonwealth Campus	Philadelphia	A91	67.4 kBtu/ft²	237,472 sq ft
98	Edmund Street	Philadelphia	A91	2.5 kBtu/ft²	176,167 sq ft
99	Arbill Industries, Inc.	Philadelphia	A91	30.7 kBtu/ft²	117,538 sq ft
100	Ferguson	Philadelphia	A91	40.2 kBtu/ft²	99,864 sq ft

Frequently asked questions

What is the most energy-efficient large building in Philadelphia?

(PA2459) - Toll Naval Square tops the list with an ENERGY STAR score of 100 among Philadelphia buildings over 50,000 sq ft in the latest Phila. Code §9-3402 / Building Energy Performance Program disclosure.

Why only large buildings?

Restricting the ranking to buildings over 50,000 sq ft keeps it meaningful — perfect scores are common among small buildings, while running a high score at scale is the real efficiency achievement.

Dataset updated July 2026 . Source: Building Energy Benchmarking public disclosure.