City Light - South Service Center Bldg B
Other - Utility in Seattle, WA · 3613 4TH AVE S · 98134
At a glance
City Light - South Service Center Bldg B is a 58,640-square-foot other - utility building at 3613 4TH AVE S in Seattle, Washington, built in 1965. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 60.1 kBtu/ft² and 20 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 60.1 kBtu/ft² |
| Source EUI | 168.4 kBtu/ft² |
| GHG emissions | 20 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 1,033,648 kWh |
| Gross floor area | 58,640 sq ft |
| Source record | seattle:248:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 60.1 kBtu/ft² | 20 tCO₂e | |
| 2024 | — | 58.4 kBtu/ft² | 20 tCO₂e | |
| 2023 | — | 55.9 kBtu/ft² | 19 tCO₂e | |
| 2022 | — | 63.7 kBtu/ft² | 22 tCO₂e | |
| 2021 | — | 68.3 kBtu/ft² | 23 tCO₂e | |
| 2020 | — | 52.9 kBtu/ft² | 18 tCO₂e | |
| 2019 | — | 49.2 kBtu/ft² | 17 tCO₂e | |
| 2018 | — | 63.5 kBtu/ft² | 22 tCO₂e | |
| 2017 | — | 65.2 kBtu/ft² | 27 tCO₂e | |
| 2016 | — | 55.9 kBtu/ft² | 23 tCO₂e | |
| 2015 | — | 58.5 kBtu/ft² | 24 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
- 3613 4TH AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98134
- Coordinates
- 47.57070, -122.33010
Within ~1 km
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- Costco 4th Ave Sscore 65
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See also: most efficient in Seattle · biggest emitters
How does City Light - South Service Center Bldg B compare with other buildings in Seattle?
The latest disclosures cover 3,871 benchmarked buildings in Seattle. Its site EUI of 60.1 kBtu/ft² is about 26% 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 0.3 kgCO₂e/ft² is about 66% below the group average of 1.0 kgCO₂e/ft².
At 58,640 sq ft, it is about half of the average floor area of 112,467 sq ft for those buildings. It was built in 1965, 10 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 B's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for City Light - South Service Center Bldg B, covering report years 2015–2025. Site EUI moved from 58.5 kBtu/ft² (2015) to 60.1 kBtu/ft² (2025), an 3% increase. Reported emissions went from 24 tCO₂e to 20 tCO₂e over the same span (down 16%).
What does a site EUI of 60.1 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 B's 60.1 kBtu/ft² across 58,640 sq ft works out to about 3.5 billion Btu (1,033 MWh-equivalent) in 2025. Its source EUI of 168.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,033,648 kWh of electricity for the year.
Which law requires City Light - South Service Center Bldg B to report its energy use?
City Light - South Service Center Bldg B 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:248:2025). 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
Frequently asked questions
What is City Light - South Service Center Bldg B's energy grade?
City Light - South Service Center Bldg B did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 60.1 kBtu/ft².
How much energy does City Light - South Service Center Bldg B use?
Its 2025 site energy-use intensity was 60.1 kBtu/ft² (168.4 kBtu/ft² source) across 58,640 sq ft, including 1,033,648 kWh of electricity.
What are City Light - South Service Center Bldg B's carbon emissions?
City Light - South Service Center Bldg B reported 20 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is City Light - South Service Center Bldg B?
City Light - South Service Center Bldg B is at 3613 4TH AVE S, in Seattle, Washington 98134. Its coordinates are 47.57070, -122.33010 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is City Light - South Service Center Bldg B and when was it built?
City Light - South Service Center Bldg B has 58,640 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1965 as its year built. It is classed as other - utility.
Is City Light - South Service Center Bldg B 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 B, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/city-light-south-service-center-bldg-b-03f3f193 (data as of October 2, 2026).