At a glance
5th & Jackson Building is a 181,694-square-foot office building at 315 5TH AVE S in Seattle, Washington, built in 2002. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 22.2 kBtu/ft² and 18 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 22.2 kBtu/ft² |
| Source EUI | 62.1 kBtu/ft² |
| GHG emissions | 18 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 932,456 kWh |
| Gross floor area | 181,694 sq ft |
| Source record | seattle:538:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 22.2 kBtu/ft² | 18 tCO₂e | |
| 2024 | — | — | — | |
| 2023 | 93 | ±0 | 35.0 kBtu/ft² | 32 tCO₂e |
| 2022 | 93 | ±0 | 36.3 kBtu/ft² | 33 tCO₂e |
| 2021 | 93 | 35.1 kBtu/ft² | 32 tCO₂e | |
| 2020 | — | 34.3 kBtu/ft² | 31 tCO₂e | |
| 2019 | 93 | +8 | 40.2 kBtu/ft² | 36 tCO₂e |
| 2018 | 85 | +10 | 42.9 kBtu/ft² | 38 tCO₂e |
| 2017 | 75 | -13 | 51.1 kBtu/ft² | 45 tCO₂e |
| 2016 | 88 | +2 | 49.9 kBtu/ft² | 44 tCO₂e |
| 2015 | 86 | 51.9 kBtu/ft² | 47 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
- 315 5TH AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59963, -122.32796
Within ~1 km
Nearby benchmarked buildings
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- Centurylink Field-Stadiumscore —
Stadium (Open) · 1,913,640 sq ft
- Seattle Municipal Towerscore 86
Office · 1,354,987 sq ft
- 999 Third Avescore 88
Office · 1,323,055 sq ft
Office · 1,249,055 sq ft
See also: most efficient in Seattle · biggest emitters
How does 5th & Jackson 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 22.2 kBtu/ft² is about half of the average of 44.8 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 81% below the group average of 0.7 kgCO₂e/ft².
At 181,694 sq ft, it is roughly in line with the average floor area of 196,452 sq ft for those buildings. It was built in 2002, 37 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 5th & Jackson Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for 5th & Jackson Building, covering report years 2015–2025. Its ENERGY STAR score went from 86 in 2015 to 93 in 2023 (+7 points); its best year on file was 2019, at 93. Site EUI moved from 51.9 kBtu/ft² (2015) to 22.2 kBtu/ft² (2025), a 57% decrease. Reported emissions went from 47 tCO₂e to 18 tCO₂e over the same span (down 61%).
What does a site EUI of 22.2 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. 5th & Jackson Building's 22.2 kBtu/ft² across 181,694 sq ft works out to about 4 billion Btu (1,182 MWh-equivalent) in 2025. Its source EUI of 62.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 932,456 kWh of electricity for the year.
Which law requires 5th & Jackson Building to report its energy use?
5th & Jackson 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:538:2025). 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
- Magnuson Bldg 2, Conservation Corps· 178,196 sq ft · score 100 (A)
- Republican Building· 176,532 sq ft
- Mercer/Yale Bldg - 1260 Mercer· 175,885 sq ft · score 98 (A)
- Second And Spring Building· 172,842 sq ft · EUI 50.3 kBtu/ft²
- 35 Stone Office Building· 171,945 sq ft · score 88 (A)
- Active Voice Building (Formerly Sixth & Lenora)· 169,020 sq ft · score 87 (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 5th & Jackson Building's energy grade?
5th & Jackson Building did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 22.2 kBtu/ft².
How much energy does 5th & Jackson Building use?
Its 2025 site energy-use intensity was 22.2 kBtu/ft² (62.1 kBtu/ft² source) across 181,694 sq ft, including 932,456 kWh of electricity.
What are 5th & Jackson Building's carbon emissions?
5th & Jackson Building reported 18 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2025.
Where is 5th & Jackson Building?
5th & Jackson Building is at 315 5TH AVE S, in Seattle, Washington 98104. Its coordinates are 47.59963, -122.32796 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 5th & Jackson Building and when was it built?
5th & Jackson Building has 181,694 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2002 as its year built. It is classed as office.
Is 5th & Jackson 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, “5th & Jackson Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/5th-jackson-building-cb6e7e8a (data as of October 2, 2026).