Most efficient large buildings in Portland

Top 100 ENERGY STAR scores among buildings over 50,000 sq ft under Commercial Building Energy Performance Reporting Policy. Flip side: least efficient →

Top 100 by ENERGY STAR score

#	Building	City	Score	Site EUI	Floor area
1	Slabtown Center	Portland	A100	67.3 kBtu/ft²	236,515 sq ft
2	Residence Inn Portland Downtown	Portland	A100	53.7 kBtu/ft²	220,663 sq ft
3	COP - Vanport Building	Portland	A100	29.4 kBtu/ft²	174,000 sq ft
4	Gladys McCoy Building	Portland	A100	27.8 kBtu/ft²	158,888 sq ft
5	Canvas at Press Blocks	Portland	A100	13.4 kBtu/ft²	153,990 sq ft
6	839 SE 3RD AVE	Portland	A100	3.3 kBtu/ft²	150,000 sq ft
7	Fremont Place I - 1750 NW Naito Pkwy	Portland	A100	11.6 kBtu/ft²	124,312 sq ft
8	Walnut Park Complex	Portland	A100	45.1 kBtu/ft²	99,398 sq ft
9	Jim Fisher Volvo	Portland	A100	13.0 kBtu/ft²	92,500 sq ft
10	Extended Stay	Portland	A100	29.3 kBtu/ft²	79,800 sq ft
11	Holiday Inn Express & Suites	Portland	A100	41.5 kBtu/ft²	79,360 sq ft
12	7 SE Stark	Portland	A100	1.1 kBtu/ft²	78,009 sq ft
13	Comfort Suites	Portland	A100	17.1 kBtu/ft²	66,622 sq ft
14	Clarion Hotel Portland Airport	Portland	A100	20.6 kBtu/ft²	63,623 sq ft
15	WEST INTERSTATE	Portland	A100	16.1 kBtu/ft²	50,903 sq ft
16	Lloyd Center Tower	Portland	A99	98.2 kBtu/ft²	520,146 sq ft
17	Galleria	Portland	A99	15.9 kBtu/ft²	212,848 sq ft
18	250 Taylor	Portland	A99	20.0 kBtu/ft²	179,685 sq ft
19	Canvas at Press Blocks	Portland	A99	15.0 kBtu/ft²	153,990 sq ft
20	Walmart	Portland	A99	38.1 kBtu/ft²	88,140 sq ft
21	Country Inn & Suites Delta Park	Portland	A99	29.5 kBtu/ft²	84,450 sq ft
22	Heartline	Portland	A99	27.5 kBtu/ft²	83,165 sq ft
23	Rivertec Building	Portland	A99	23.2 kBtu/ft²	76,589 sq ft
24	Kohl's (11010 NE Halsey St)	Portland	A99	21.6 kBtu/ft²	75,079 sq ft
25	Upshur Warehouse	Portland	A99	17.2 kBtu/ft²	70,000 sq ft
26	Silver Cloud Inn	Portland	A99	47.7 kBtu/ft²	68,030 sq ft
27	Redfox Commons	Portland	A99	11.0 kBtu/ft²	50,000 sq ft
28	Olympic Mills	Portland	A98	27.7 kBtu/ft²	177,089 sq ft
29	NWEA: Educational Assessment Solutions	Portland	A98	36.1 kBtu/ft²	117,873 sq ft
30	Glisan Station	Portland	A98	22.5 kBtu/ft²	116,222 sq ft
31	Ron Tonkin Chevrolet	Portland	A98	51.5 kBtu/ft²	51,994 sq ft
32	Davis Building	Portland	A98	32.0 kBtu/ft²	51,504 sq ft
33	Conway Office Building (2151 NW SAVIER ST)	Portland	A97	26.9 kBtu/ft²	153,051 sq ft
34	Radisson Hotel Portland Airport	Portland	A97	57.1 kBtu/ft²	102,616 sq ft
35	Oregon Clinic	Portland	A97	67.7 kBtu/ft²	101,600 sq ft
36	Systems Administrative Office	Portland	A97	72.9 kBtu/ft²	84,859 sq ft
37	Bakery Blocks	Portland	A97	20.8 kBtu/ft²	79,950 sq ft
38	Fabric Depot	Portland	A97	40.5 kBtu/ft²	75,050 sq ft
39	2 & Taylor Building	Portland	A97	46.5 kBtu/ft²	73,757 sq ft
40	Hampton Inn Portland Airport	Portland	A97	50.8 kBtu/ft²	66,024 sq ft
41	Fremont Place II - 1650 NW Naito Pkwy	Portland	A97	22.9 kBtu/ft²	62,985 sq ft
42	Park Avenue West	Portland	A96	36.9 kBtu/ft²	479,736 sq ft
43	COURTYARD MARRIOTT PORTLAND CITY CENTER	Portland	A96	52.8 kBtu/ft²	203,896 sq ft
44	R.L. Woolworth Building	Portland	A96	28.7 kBtu/ft²	193,190 sq ft
45	Marriott Courtyard Portland	Portland	A96	51.0 kBtu/ft²	147,250 sq ft
46	Lloyd Corporate Plaza	Portland	A96	32.5 kBtu/ft²	121,739 sq ft
47	ODOT Region 1 Building	Portland	A96	25.3 kBtu/ft²	94,063 sq ft
48	U.S. Customs House	Portland	A96	53.0 kBtu/ft²	89,862 sq ft
49	Mohawk Building	Portland	A96	23.8 kBtu/ft²	69,624 sq ft
50	BLOCK 300 (Robert Duncan Plaza)	Portland	A95	28.6 kBtu/ft²	367,786 sq ft
51	World Trade Center 1	Portland	A95	29.2 kBtu/ft²	320,346 sq ft
52	Portland State Office Building	Portland	A95	34.9 kBtu/ft²	278,514 sq ft
53	Daimler Truck North America Corp HQ	Portland	A95	50.7 kBtu/ft²	268,904 sq ft
54	Hilton Executive Tower	Portland	A95	51.0 kBtu/ft²	264,000 sq ft
55	The Crossing at First	Portland	A95	35.6 kBtu/ft²	190,926 sq ft
56	Yeon Building	Portland	A95	31.6 kBtu/ft²	131,584 sq ft
57	Tiffany Center	Portland	A95	43.0 kBtu/ft²	113,839 sq ft
58	FIRST AND MAIN	Portland	A94	31.9 kBtu/ft²	397,685 sq ft
59	IKEA	Portland	A94	44.6 kBtu/ft²	280,000 sq ft
60	The Selling Building	Portland	A94	34.2 kBtu/ft²	99,930 sq ft
61	Mead Building	Portland	A94	28.9 kBtu/ft²	87,602 sq ft
62	Residence Inn Portland North Harbour	Portland	A94	50.8 kBtu/ft²	80,000 sq ft
63	Weatherly Building	Portland	A94	33.0 kBtu/ft²	68,945 sq ft
64	Portland Pearl District OR HIS	Portland	A93	50.8 kBtu/ft²	202,022 sq ft
65	COP - City Hall	Portland	A93	45.9 kBtu/ft²	87,544 sq ft
66	EASTSIDE EXCHANGE	Portland	A93	32.5 kBtu/ft²	80,000 sq ft
67	Hotel Lucia	Portland	A93	47.1 kBtu/ft²	70,160 sq ft
68	Hilton Garden Inn Portland Airport	Portland	A93	53.6 kBtu/ft²	64,592 sq ft
69	Safeway	Portland	A93	142.9 kBtu/ft²	56,536 sq ft
70	Hotel Zags	Portland	A92	70.6 kBtu/ft²	119,462 sq ft
71	Cascade Station I	Portland	A92	39.1 kBtu/ft²	99,159 sq ft
72	Spalding Building	Portland	A92	32.0 kBtu/ft²	95,260 sq ft
73	Floor & Decor	Portland	A92	30.7 kBtu/ft²	79,616 sq ft
74	4550-4600 SW MACADAM AVE	Portland	A92	31.2 kBtu/ft²	56,055 sq ft
75	COP - The Portland Building	Portland	A91	36.8 kBtu/ft²	401,711 sq ft
76	Power + Light Building	Portland	A91	47.1 kBtu/ft²	330,875 sq ft
77	Providence Office Park I	Portland	A91	45.5 kBtu/ft²	185,098 sq ft
78	Morgan Building	Portland	A91	36.1 kBtu/ft²	154,937 sq ft
79	Leland James (formerly Conway)	Portland	A91	37.7 kBtu/ft²	118,104 sq ft
80	Hanna Andersson	Portland	A91	41.3 kBtu/ft²	113,468 sq ft
81	1500 NE IRVING ST	Portland	A91	57.1 kBtu/ft²	82,971 sq ft
82	Clay Creative	Portland	A91	28.5 kBtu/ft²	77,155 sq ft
83	1122-1138 SW MORRISON ST	Portland	A91	26.1 kBtu/ft²	70,000 sq ft
84	Candlewood Suites Portland Airport	Portland	A91	37.8 kBtu/ft²	59,478 sq ft
85	One Main Place	Portland	A90	41.8 kBtu/ft²	353,967 sq ft
86	River Forum I	Portland	A90	45.5 kBtu/ft²	209,657 sq ft
87	COP - 1900 Building	Portland	A90	41.9 kBtu/ft²	161,185 sq ft
88	PoP - Target	Portland	A90	58.0 kBtu/ft²	137,955 sq ft
89	Albers Mill	Portland	A90	43.3 kBtu/ft²	134,522 sq ft
90	Jantzen Beach Center Home Depot	Portland	A90	60.1 kBtu/ft²	106,500 sq ft
91	Skylight	Portland	A90	28.8 kBtu/ft²	88,222 sq ft
92	One Airport Center	Portland	A90	48.9 kBtu/ft²	73,304 sq ft
93	Moda Tower	Portland	A89	30.6 kBtu/ft²	609,959 sq ft
94	Fred Meyer	Portland	A89	92.6 kBtu/ft²	185,320 sq ft
95	Vestas (Meier & Frank Depot Building)	Portland	A89	43.6 kBtu/ft²	132,433 sq ft
96	AC Hotel	Portland	A89	47.5 kBtu/ft²	119,975 sq ft
97	Sixth at Yamhill	Portland	A89	51.5 kBtu/ft²	114,363 sq ft
98	Sylvan Westgate (212)	Portland	A89	47.7 kBtu/ft²	69,407 sq ft
99	EC Corp Office Bldg 1	Portland	A89	25.2 kBtu/ft²	63,889 sq ft
100	Safeway	Portland	A89	186.9 kBtu/ft²	55,787 sq ft

Frequently asked questions

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

Slabtown Center tops the list with an ENERGY STAR score of 100 among Portland buildings over 50,000 sq ft in the latest Commercial Building Energy Performance Reporting Policy 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: Commercial Building Energy Reporting public disclosure.