City Light - South Service Center Bldg A
Other - Utility in Seattle, WA · 400 S SPOKANE ST · 98134
At a glance
City Light - South Service Center Bldg A is a 179,161-square-foot other - utility building at 400 S SPOKANE ST in Seattle, Washington, built in 1924. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 53.9 kBtu/ft² and 101 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 53.9 kBtu/ft² |
| Source EUI | 141.3 kBtu/ft² |
| GHG emissions | 101 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 2,566,215 kWh |
| Natural gas | 9,766 therms |
| Gross floor area | 179,161 sq ft |
| Source record | seattle:247:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 53.9 kBtu/ft² | 101 tCO₂e | |
| 2024 | — | 55.0 kBtu/ft² | 119 tCO₂e | |
| 2023 | — | 56.2 kBtu/ft² | 120 tCO₂e | |
| 2022 | — | 51.9 kBtu/ft² | 121 tCO₂e | |
| 2021 | — | 50.3 kBtu/ft² | 103 tCO₂e | |
| 2020 | — | 47.4 kBtu/ft² | 86 tCO₂e | |
| 2019 | — | 50.8 kBtu/ft² | 98 tCO₂e | |
| 2018 | — | 52.7 kBtu/ft² | 96 tCO₂e | |
| 2017 | — | 55.5 kBtu/ft² | 99 tCO₂e | |
| 2016 | — | 52.2 kBtu/ft² | 86 tCO₂e | |
| 2015 | — | 55.2 kBtu/ft² | 88 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 400 S SPOKANE ST
- City
- Seattle
- State
- Washington
- ZIP
- 98134
- Coordinates
- 47.57199, -122.32811
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does City Light - South Service Center Bldg A compare with other buildings in Seattle?
The latest disclosures cover 3,871 benchmarked buildings in Seattle. Its site EUI of 53.9 kBtu/ft² is about 13% above the average of 47.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.6 kgCO₂e/ft² is about 44% below the group average of 1.0 kgCO₂e/ft².
At 179,161 sq ft, it is about 59% above the average floor area of 112,467 sq ft for those buildings. It was built in 1924, 51 years earlier than the group's average year built (1975). Across all 24 jurisdictions BuildingCensus covers, the 61 other - utility buildings average an ENERGY STAR score of 1 and a site EUI of 99.4 kBtu/ft².
How has City Light - South Service Center Bldg A's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for City Light - South Service Center Bldg A, covering report years 2015–2025. Site EUI moved from 55.2 kBtu/ft² (2015) to 53.9 kBtu/ft² (2025), a 2% decrease. Reported emissions went from 88 tCO₂e to 101 tCO₂e over the same span (up 15%).
What does a site EUI of 53.9 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. City Light - South Service Center Bldg A's 53.9 kBtu/ft² across 179,161 sq ft works out to about 9.7 billion Btu (2,830 MWh-equivalent) in 2025. Its source EUI of 141.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,566,215 kWh of electricity and 9,766 therms of natural gas for the year.
Which law requires City Light - South Service Center Bldg A to report its energy use?
City Light - South Service Center Bldg A 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:247:2025). 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 other - utility buildings in Seattle
- Harbor Island Studios - King County· 79,600 sq ft · EUI 8.8 kBtu/ft²
- City Light - South Service Center Bldg B· 58,640 sq ft · EUI 60.1 kBtu/ft²
- 4500 W Marginal Way Sw· 40,189 sq ft · EUI 62.5 kBtu/ft²
- 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 City Light - South Service Center Bldg A's energy grade?
City Light - South Service Center Bldg A did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 53.9 kBtu/ft².
How much energy does City Light - South Service Center Bldg A use?
Its 2025 site energy-use intensity was 53.9 kBtu/ft² (141.3 kBtu/ft² source) across 179,161 sq ft, including 2,566,215 kWh of electricity and 9,766 therms of natural gas.
What are City Light - South Service Center Bldg A's carbon emissions?
City Light - South Service Center Bldg A reported 101 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025.
Where is City Light - South Service Center Bldg A?
City Light - South Service Center Bldg A is at 400 S SPOKANE ST, in Seattle, Washington 98134. Its coordinates are 47.57199, -122.32811 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is City Light - South Service Center Bldg A and when was it built?
City Light - South Service Center Bldg A has 179,161 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1924 as its year built. It is classed as other - utility.
Is City Light - South Service Center Bldg A 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, “City Light - South Service Center Bldg A, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/city-light-south-service-center-bldg-a-594cfc1a (data as of October 2, 2026).