Most efficient large buildings in Seattle

Top 100 ENERGY STAR scores among buildings over 50,000 sq ft under Seattle Energy Benchmarking Ordinance (SMC 22.920). Flip side: least efficient →

At a glance

The Standard At Seattle has the highest ENERGY STAR score among Seattle buildings over 50,000 sq ft: 100 out of 100 in its 2025 disclosure. The 100 buildings ranked here score between 100 and 100, against a citywide average of 78 across all sizes.

Top 100 by ENERGY STAR score

#	Building	City	Score	Site EUI	Floor area
1	The Standard At Seattle	Seattle	A100	35.6 kBtu/ft²	612,844 sq ft
2	The Danforth	Seattle	A100	16.0 kBtu/ft²	592,484 sq ft
3	Sitka Apartments	Seattle	A100	23.9 kBtu/ft²	518,888 sq ft
4	Urbana Apartments	Seattle	A100	31.4 kBtu/ft²	473,387 sq ft
5	Ballard On The Park Apartments	Seattle	A100	30.2 kBtu/ft²	447,755 sq ft
6	Modera Northgate	Seattle	A100	24.8 kBtu/ft²	426,841 sq ft
7	Amli Mark 24 Apts	Seattle	A100	28.6 kBtu/ft²	418,285 sq ft
8	Emerson (Prev Modera First Hill)	Seattle	A100	23.5 kBtu/ft²	393,343 sq ft
9	Juxt Apartments (2017)	Seattle	A100	23.6 kBtu/ft²	391,386 sq ft
10	Spyglass Apts	Seattle	A100	25.3 kBtu/ft²	366,662 sq ft
11	Leva On Market Apts	Seattle	A100	32.1 kBtu/ft²	361,727 sq ft
12	Mason & Main Building A	Seattle	A100	15.3 kBtu/ft²	358,048 sq ft
13	Taylor 28	Seattle	A100	34.2 kBtu/ft²	345,916 sq ft
14	Chapter Building 1	Seattle	A100	10.7 kBtu/ft²	328,919 sq ft
15	Odin Apartments	Seattle	A100	31.9 kBtu/ft²	318,835 sq ft
16	Ava Ballard Apartments	Seattle	A100	24.6 kBtu/ft²	317,814 sq ft
17	Lowes & Amazon W	Seattle	A100	25.6 kBtu/ft²	291,940 sq ft
18	Wayfarer Apartments	Seattle	A100	21.9 kBtu/ft²	281,262 sq ft
19	Centerline Apartments (East & West)	Seattle	A100	34.9 kBtu/ft²	278,200 sq ft
20	Owl	Seattle	A100	19.0 kBtu/ft²	274,153 sq ft
21	Maris Apartments	Seattle	A100	22.1 kBtu/ft²	272,811 sq ft
22	Dimension By Alta Apts	Seattle	A100	23.9 kBtu/ft²	269,065 sq ft
23	400 Westlake Building	Seattle	A100	11.6 kBtu/ft²	268,005 sq ft
24	Excelsior Apartments	Seattle	A100	35.8 kBtu/ft²	263,321 sq ft
25	Leilani On Greenwood Apts (North/South/West Combined)	Seattle	A100	12.0 kBtu/ft²	259,493 sq ft
26	Augusta Apartments	Seattle	A100	21.5 kBtu/ft²	257,903 sq ft
27	World Trade Center North	Seattle	A100	43.1 kBtu/ft²	251,044 sq ft
28	Bridges@11th	Seattle	A100	24.5 kBtu/ft²	233,757 sq ft
29	Edge Point Apartment	Seattle	A100	24.7 kBtu/ft²	231,528 sq ft
30	Mason & Main Building B	Seattle	A100	17.5 kBtu/ft²	228,345 sq ft
31	Youngstown Flats Apts	Seattle	A100	0.2 kBtu/ft²	227,672 sq ft
32	Batik Apartments	Seattle	A100	20.8 kBtu/ft²	226,256 sq ft
33	Slate Apartments	Seattle	A100	26.9 kBtu/ft²	209,583 sq ft
34	The Cline	Seattle	A100	27.8 kBtu/ft²	209,331 sq ft
35	Mount Baker Station - South Bldg	Seattle	A100	26.1 kBtu/ft²	203,262 sq ft
36	Sentral Slu	Seattle	A100	34.7 kBtu/ft²	200,823 sq ft
37	Prescott Wallingford Apartments	Seattle	A100	29.7 kBtu/ft²	198,233 sq ft
38	Green Lake Phase Iii Llc	Seattle	A100	25.4 kBtu/ft²	193,740 sq ft
39	Tahoma Valley Apartments	Seattle	A100	17.9 kBtu/ft²	188,979 sq ft
40	Mark On 8th	Seattle	A100	22.6 kBtu/ft²	187,070 sq ft
41	Elan Uptown Flats - West	Seattle	A100	20.7 kBtu/ft²	185,048 sq ft
42	Velo Apartments - Fremont	Seattle	A100	38.5 kBtu/ft²	182,378 sq ft
43	Magnuson Bldg 2, Conservation Corps	Seattle	A100	9.9 kBtu/ft²	178,196 sq ft
44	Koi	Seattle	A100	29.5 kBtu/ft²	177,528 sq ft
45	Luna Apts & Admiral Pcc	Seattle	A100	25.5 kBtu/ft²	169,400 sq ft
46	Bay Vista Residential Tower	Seattle	A100	17.5 kBtu/ft²	167,941 sq ft
47	Victoria Park Senior Apartments	Seattle	A100	31.3 kBtu/ft²	165,914 sq ft
48	Eastlake 2851	Seattle	A100	32.4 kBtu/ft²	165,325 sq ft
49	Ballard Yards	Seattle	A100	27.0 kBtu/ft²	165,146 sq ft
50	Theory U District	Seattle	A100	28.3 kBtu/ft²	159,441 sq ft
51	Lane Apartments- West Building	Seattle	A100	25.0 kBtu/ft²	158,544 sq ft
52	Mural Apartments	Seattle	A100	32.0 kBtu/ft²	156,605 sq ft
53	Chapter Building 2	Seattle	A100	8.8 kBtu/ft²	156,586 sq ft
54	Stellar Flats Apartments	Seattle	A100	21.1 kBtu/ft²	155,463 sq ft
55	Ballard Condominium (1532 Nw 56th St #Cu)	Seattle	A100	8.4 kBtu/ft²	152,693 sq ft
56	Chloe On Madison Apartments	Seattle	A100	31.4 kBtu/ft²	147,431 sq ft
57	Upton Flats At High Point	Seattle	A100	14.5 kBtu/ft²	147,082 sq ft
58	Rivet Apartments	Seattle	A100	28.6 kBtu/ft²	145,727 sq ft
59	Northgate 3 Llc	Seattle	A100	31.6 kBtu/ft²	141,793 sq ft
60	Northgate Villa Condominium	Seattle	A100	17.8 kBtu/ft²	140,594 sq ft
61	Balfour Place Apts	Seattle	A100	30.5 kBtu/ft²	140,049 sq ft
62	State Street Lofts (sa412)	Seattle	A100	28.1 kBtu/ft²	138,576 sq ft
63	Marselle	Seattle	A100	22.7 kBtu/ft²	138,125 sq ft
64	Metro On First Apts	Seattle	A100	29.0 kBtu/ft²	137,324 sq ft
65	Aegis Living Laurelhurst	Seattle	A100	33.5 kBtu/ft²	136,505 sq ft
66	Barclay Broadway	Seattle	A100	26.2 kBtu/ft²	133,706 sq ft
67	The Queensborough	Seattle	A100	15.1 kBtu/ft²	129,860 sq ft
68	Four Points Sheraton Seattle Center	Seattle	A100	36.4 kBtu/ft²	122,942 sq ft
69	Moore Hotel & Theatre	Seattle	A100	34.1 kBtu/ft²	122,810 sq ft
70	Hue Apartments	Seattle	A100	31.3 kBtu/ft²	119,219 sq ft
71	Canterbury Shores Condominium	Seattle	A100	10.9 kBtu/ft²	118,154 sq ft
72	Dunn Motors Building	Seattle	A100	28.0 kBtu/ft²	117,555 sq ft
73	Roystone Apartments	Seattle	A100	15.4 kBtu/ft²	116,447 sq ft
74	Zella Apartments	Seattle	A100	29.8 kBtu/ft²	112,511 sq ft
75	Interbay Work Lofts	Seattle	A100	10.1 kBtu/ft²	111,750 sq ft
76	WILSON-PACIFIC (SPS-DISTRICT) DEMOLISHED	Seattle	A100	12.2 kBtu/ft²	110,830 sq ft
77	Square One Apartments	Seattle	A100	31.1 kBtu/ft²	109,355 sq ft
78	Tobira	Seattle	A100	21.0 kBtu/ft²	109,284 sq ft
79	Henry Apartments	Seattle	A100	31.7 kBtu/ft²	108,857 sq ft
80	Capitol Hill Station Apts (Site C)	Seattle	A100	22.4 kBtu/ft²	108,447 sq ft
81	Uncle Bob's Place Condominium	Seattle	A100	27.8 kBtu/ft²	104,897 sq ft
82	Hawthorne Apartments	Seattle	A100	28.4 kBtu/ft²	104,452 sq ft
83	Medora Roosevelt	Seattle	A100	26.7 kBtu/ft²	104,059 sq ft
84	Boxcar Apartments	Seattle	A100	31.1 kBtu/ft²	102,120 sq ft
85	Jackson Park House & Village	Seattle	A100	22.2 kBtu/ft²	101,613 sq ft
86	Fireside Flats	Seattle	A100	29.9 kBtu/ft²	101,031 sq ft
87	Ida Culver - Ravenna	Seattle	A100	16.2 kBtu/ft²	99,941 sq ft
88	Trader Joe's & Apartments	Seattle	A100	10.7 kBtu/ft²	97,229 sq ft
89	Cora Queen Anne Apts	Seattle	A100	26.9 kBtu/ft²	96,529 sq ft
90	WESTRIDGE PARK APARTMENTS (7701)	Seattle	A100	—	95,865 sq ft
91	Luna Court Condominium	Seattle	A100	36.1 kBtu/ft²	95,420 sq ft
92	Marlborough House Condominium	Seattle	A100	12.5 kBtu/ft²	95,280 sq ft
93	Northpark Villa	Seattle	A100	24.1 kBtu/ft²	93,191 sq ft
94	Verse Seattle + Welch Plaza	Seattle	A100	21.9 kBtu/ft²	93,024 sq ft
95	Pete Gross House Apts	Seattle	A100	23.2 kBtu/ft²	92,841 sq ft
96	Rainier Bottling Plant	Seattle	A100	14.0 kBtu/ft²	92,051 sq ft
97	Skyline House Apts	Seattle	A100	30.1 kBtu/ft²	88,422 sq ft
98	Casa Pacifica	Seattle	A100	33.4 kBtu/ft²	88,004 sq ft
99	Queen Anne Plaza	Seattle	A100	0.8 kBtu/ft²	86,995 sq ft
100	Northwest Bldg	Seattle	A100	74.4 kBtu/ft²	85,385 sq ft

What do Seattle's most efficient buildings have in common?

100 of them post a perfect 100. By property type the list is led by multifamily housing (84), office (9) and senior living community (2). Their average site EUI is 24.8 kBtu/ft², about half of the citywide average of 47.6 kBtu/ft². Combined they cover 20.0 million square feet; the median ranked building has 159,441 sq ft.

The ranking covers buildings of 50,000 sq ft or more that report an ENERGY STAR score, ordered by score and then by floor area. Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.

More Seattle rankings and data

Frequently asked questions

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

The Standard At Seattle tops the list with an ENERGY STAR score of 100 among Seattle buildings over 50,000 sq ft in the latest Seattle Energy Benchmarking Ordinance (SMC 22.920) 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.

About this data

Source: Building Energy Benchmarking (Seattle Energy Benchmarking Ordinance (SMC 22.920)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.

Cite as: BuildingCensus, “Most efficient buildings in Seattle”, https://buildingcensus.com/rankings/most-efficient/seattle (data as of October 2, 2026).