Northgate West Condominium
Multifamily Housing in Seattle, WA · 11300 1ST AVE NE · 98125
At a glance
Northgate West Condominium is a 102,298-square-foot multifamily housing building at 11300 1ST AVE NE in Seattle, Washington, built in 1979. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 29.6 kBtu/ft² and 23 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 29.6 kBtu/ft² |
| Source EUI | 78.2 kBtu/ft² |
| GHG emissions | 23 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 606,516 kWh |
| Natural gas | 2,089 therms |
| Gross floor area | 102,298 sq ft |
| Source record | seattle:26243:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 29.6 kBtu/ft² | 23 tCO₂e | |
| 2024 | — | 28.6 kBtu/ft² | 15 tCO₂e | |
| 2023 | — | 29.9 kBtu/ft² | 15 tCO₂e | |
| 2022 | — | 30.6 kBtu/ft² | 18 tCO₂e | |
| 2021 | — | 29.6 kBtu/ft² | 14 tCO₂e | |
| 2020 | — | 31.2 kBtu/ft² | 15 tCO₂e | |
| 2019 | 82 | +10 | 33.0 kBtu/ft² | 19 tCO₂e |
| 2018 | 72 | +5 | 29.3 kBtu/ft² | 21 tCO₂e |
| 2017 | 67 | +6 | 32.0 kBtu/ft² | 24 tCO₂e |
| 2016 | 61 | +11 | 29.7 kBtu/ft² | 22 tCO₂e |
| 2015 | 50 | 29.6 kBtu/ft² | 22 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
- 11300 1ST AVE NE
- City
- Seattle
- State
- Washington
- ZIP
- 98125
- Coordinates
- 47.71122, -122.32766
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
- Modera Northgatescore 100
Multifamily Housing · 426,841 sq ft
- 525 At The Enclavescore 91
Multifamily Housing · 313,595 sq ft
Retail Store · 302,812 sq ft
- 507 Northgatescore 21
Mixed Use Property · 295,410 sq ft
See also: most efficient in Seattle · biggest emitters
How does Northgate West Condominium compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 29.6 kBtu/ft² is about 15% below the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 57% below the group average of 0.7 kgCO₂e/ft².
At 102,298 sq ft, it is about 18% above the average floor area of 86,468 sq ft for those buildings. It was built in 1979, 4 years earlier than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Northgate West Condominium's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Northgate West Condominium, covering report years 2015–2025. Its ENERGY STAR score went from 50 in 2015 to 82 in 2019 (+32 points). Site EUI moved from 29.6 kBtu/ft² (2015) to 29.6 kBtu/ft² (2025), a 0% decrease. Reported emissions went from 22 tCO₂e to 23 tCO₂e over the same span (up 2%).
What does a site EUI of 29.6 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. Northgate West Condominium's 29.6 kBtu/ft² across 102,298 sq ft works out to about 3 billion Btu (887 MWh-equivalent) in 2025. Its source EUI of 78.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 606,516 kWh of electricity and 2,089 therms of natural gas for the year.
Which law requires Northgate West Condominium to report its energy use?
Northgate West Condominium 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:26243:2025). 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 multifamily housing buildings in Seattle
- Boxcar Apartments· 102,120 sq ft · score 100 (A)
- Maddux North· 101,856 sq ft · score 96 (A)
- Sutton Place Condominium· 101,706 sq ft · score 23 (D)
- Jackson Park House & Village· 101,613 sq ft · score 100 (A)
- The Pearl Apartments· 101,530 sq ft · score 81 (B)
- Elizabeth Thomas Homes· 101,267 sq ft · score 96 (A)
- Multifamily Housing buildings in Seattle· 1,971 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 Northgate West Condominium's energy grade?
Northgate West Condominium did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 29.6 kBtu/ft².
How much energy does Northgate West Condominium use?
Its 2025 site energy-use intensity was 29.6 kBtu/ft² (78.2 kBtu/ft² source) across 102,298 sq ft, including 606,516 kWh of electricity and 2,089 therms of natural gas.
What are Northgate West Condominium's carbon emissions?
Northgate West Condominium reported 23 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Northgate West Condominium?
Northgate West Condominium is at 11300 1ST AVE NE, in Seattle, Washington 98125. Its coordinates are 47.71122, -122.32766 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Northgate West Condominium and when was it built?
Northgate West Condominium has 102,298 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1979 as its year built. It is classed as multifamily housing.
Is Northgate West Condominium 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, “Northgate West Condominium, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/northgate-west-condominium-8891c1ee (data as of October 2, 2026).