At a glance
Northway West Building is a 86,483-square-foot office building at 10700 MERIDIAN AVE N in Seattle, Washington, built in 1981. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 55.7 kBtu/ft² and 28 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 55.7 kBtu/ft² |
| Source EUI | 156.0 kBtu/ft² |
| GHG emissions | 28 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 1,412,354 kWh |
| Gross floor area | 86,483 sq ft |
| Source record | seattle:577:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 55.7 kBtu/ft² | 28 tCO₂e | |
| 2024 | — | 53.7 kBtu/ft² | 27 tCO₂e | |
| 2023 | — | 54.6 kBtu/ft² | 27 tCO₂e | |
| 2022 | — | 60.9 kBtu/ft² | 31 tCO₂e | |
| 2021 | — | 62.0 kBtu/ft² | 31 tCO₂e | |
| 2020 | 40 | -13 | 62.7 kBtu/ft² | 32 tCO₂e |
| 2019 | 53 | +9 | 72.3 kBtu/ft² | 36 tCO₂e |
| 2018 | 44 | +4 | 80.5 kBtu/ft² | 40 tCO₂e |
| 2017 | 40 | -16 | 79.3 kBtu/ft² | 40 tCO₂e |
| 2016 | 56 | +6 | 73.6 kBtu/ft² | 37 tCO₂e |
| 2015 | 50 | 78.6 kBtu/ft² | 39 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 10700 MERIDIAN AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98133
- Coordinates
- 47.70732, -122.33279
Within ~1 km
Nearby benchmarked buildings
- Thornton Place (Parent Property)score 61
Multifamily Housing · 771,253 sq ft
- Northgate Northscore —
Mixed Use Property · 705,535 sq ft
College/University · 694,072 sq ft
Hospital (General Medical & Surgical) · 668,027 sq ft
Parking · 423,569 sq ft
Retail Store · 302,812 sq ft
See also: most efficient in Seattle · biggest emitters
How does Northway West Building compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 55.7 kBtu/ft² is about 24% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about half of the group average of 0.7 kgCO₂e/ft².
At 86,483 sq ft, it is about 56% below the average floor area of 196,452 sq ft for those buildings. It was built in 1981, 16 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Northway West Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Northway West Building, covering report years 2015–2025. Its ENERGY STAR score went from 50 in 2015 to 40 in 2020 (-10 points); its best year on file was 2016, at 56. Site EUI moved from 78.6 kBtu/ft² (2015) to 55.7 kBtu/ft² (2025), a 29% decrease. Reported emissions went from 39 tCO₂e to 28 tCO₂e over the same span (down 30%).
What does a site EUI of 55.7 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Northway West Building's 55.7 kBtu/ft² across 86,483 sq ft works out to about 4.8 billion Btu (1,412 MWh-equivalent) in 2025. Its source EUI of 156.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,412,354 kWh of electricity for the year.
Which law requires Northway West Building to report its energy use?
Northway West Building reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:577:2025). 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 office buildings in Seattle
- Western Building· 86,204 sq ft · score 97 (A)
- Salvation Army Nw Div Headquarters· 85,963 sq ft · score 62 (C)
- Northwest Bldg· 85,385 sq ft · score 100 (A)
- Emerald Landing I· 84,116 sq ft · score 10 (D)
- 400 Mercer Street Office Building· 80,019 sq ft · score 64 (C)
- O'shea Building/Gap· 79,957 sq ft · score 94 (A)
- Office buildings in Seattle· 497 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is Northway West Building's energy grade?
Northway West Building did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 55.7 kBtu/ft².
How much energy does Northway West Building use?
Its 2025 site energy-use intensity was 55.7 kBtu/ft² (156.0 kBtu/ft² source) across 86,483 sq ft, including 1,412,354 kWh of electricity.
What are Northway West Building's carbon emissions?
Northway West Building reported 28 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Northway West Building?
Northway West Building is at 10700 MERIDIAN AVE N, in Seattle, Washington 98133. Its coordinates are 47.70732, -122.33279 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Northway West Building and when was it built?
Northway West Building has 86,483 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1981 as its year built. It is classed as office.
Is Northway West Building covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2025 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
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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, “Northway West Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/northway-west-building-46359092 (data as of October 2, 2026).