At a glance
HERITAGE BUILDING is a 78,920-square-foot office building at 111 S JACKSON ST in Seattle, Washington, built in 1904. In its 2024 Seattle benchmarking disclosure it reported a site energy-use intensity of 18.4 kBtu/ft² and 8 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 18.4 kBtu/ft² |
| Source EUI | 51.5 kBtu/ft² |
| GHG emissions | 8 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 423,808 kWh |
| Gross floor area | 78,920 sq ft |
| Source record | seattle:609:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 18.4 kBtu/ft² | 8 tCO₂e | |
| 2023 | — | 22.0 kBtu/ft² | 10 tCO₂e | |
| 2022 | 86 | +1 | 26.0 kBtu/ft² | 12 tCO₂e |
| 2021 | 85 | 28.6 kBtu/ft² | 13 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
- 111 S JACKSON ST
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59895, -122.33379
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
- 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
- Harbor Steps Ne Sitescore 81
Multifamily Housing · 1,256,335 sq ft
Office · 1,249,055 sq ft
See also: most efficient in Seattle · biggest emitters
How does HERITAGE 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 18.4 kBtu/ft² is about 59% below 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 85% below the group average of 0.7 kgCO₂e/ft².
At 78,920 sq ft, it is about 60% below the average floor area of 196,452 sq ft for those buildings. It was built in 1904, 61 years earlier 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 HERITAGE BUILDING's energy performance changed over time?
BuildingCensus holds 4 Seattle disclosures for HERITAGE BUILDING, covering report years 2021–2024. Its ENERGY STAR score went from 85 in 2021 to 86 in 2022 (+1 points). Site EUI moved from 28.6 kBtu/ft² (2021) to 18.4 kBtu/ft² (2024), a 36% decrease. Reported emissions went from 13 tCO₂e to 8 tCO₂e over the same span (down 36%).
What does a site EUI of 18.4 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. HERITAGE BUILDING's 18.4 kBtu/ft² across 78,920 sq ft works out to about 1.5 billion Btu (426 MWh-equivalent) in 2024. Its source EUI of 51.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 423,808 kWh of electricity for the year.
Which law requires HERITAGE BUILDING to report its energy use?
HERITAGE 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 2024 disclosure (source record seattle:609:2024). 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
- Grange Office Plaza· 77,662 sq ft · score 90 (A)
- Kress Building· 77,555 sq ft · score 96 (A)
- The Canal View Building· 77,174 sq ft · score 33 (D)
- Inscape Arts Building· 76,624 sq ft · score 81 (B)
- Eastlake Center (South)· 76,245 sq ft · score 68 (C)
- Scripps Building - 221 First Avenue West· 76,213 sq ft · score 69 (C)
- 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 HERITAGE BUILDING's energy grade?
HERITAGE BUILDING did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 18.4 kBtu/ft².
How much energy does HERITAGE BUILDING use?
Its 2024 site energy-use intensity was 18.4 kBtu/ft² (51.5 kBtu/ft² source) across 78,920 sq ft, including 423,808 kWh of electricity.
What are HERITAGE BUILDING's carbon emissions?
HERITAGE BUILDING reported 8 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2024.
Where is HERITAGE BUILDING?
HERITAGE BUILDING is at 111 S JACKSON ST, in Seattle, Washington 98104. Its coordinates are 47.59895, -122.33379 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is HERITAGE BUILDING and when was it built?
HERITAGE BUILDING has 78,920 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1904 as its year built. It is classed as office.
Is HERITAGE BUILDING covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2024 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
Working with Seattle building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “HERITAGE BUILDING, Seattle, Washington — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/heritage-building-903417f8 (data as of October 2, 2026).