At a glance
Moses Building is a 26,830-square-foot office building at 312 2ND AVE S in Seattle, Washington, built in 1900. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 56.3 kBtu/ft² and 43 tCO₂e of greenhouse-gas emissions. That score is higher than 13% of the 378 scored office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 55 (band C) |
| Site EUI | 56.3 kBtu/ft² |
| Source EUI | 110.2 kBtu/ft² |
| GHG emissions | 43 tCO₂e |
| GHG intensity | 1.6 kgCO₂e/ft² |
| Electricity | 229,318 kWh |
| Natural gas | 7,288 therms |
| Gross floor area | 26,830 sq ft |
| Source record | seattle:26706:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 55 | -4 | 56.3 kBtu/ft² | 43 tCO₂e |
| 2024 | 59 | ±0 | 55.3 kBtu/ft² | 45 tCO₂e |
| 2023 | 59 | +30 | 51.1 kBtu/ft² | 35 tCO₂e |
| 2022 | 29 | -34 | 72.3 kBtu/ft² | 44 tCO₂e |
| 2021 | 63 | -1 | 52.0 kBtu/ft² | 41 tCO₂e |
| 2020 | 64 | +29 | 50.3 kBtu/ft² | 40 tCO₂e |
| 2019 | 35 | -8 | 76.6 kBtu/ft² | 63 tCO₂e |
| 2018 | 43 | 60.2 kBtu/ft² | 39 tCO₂e | |
| 2017 | — | 80.5 kBtu/ft² | 62 tCO₂e | |
| 2016 | — | 78.2 kBtu/ft² | 60 tCO₂e | |
| 2015 | — | 81.9 kBtu/ft² | 55 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
- 312 2ND AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59954, -122.33115
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
Hospital (General Medical & Surgical) · 1,926,841 sq ft
- Centurylink Field-Stadiumscore —
Stadium (Open) · 1,913,640 sq ft
- Russell Investments Centerscore 92
Office · 1,592,914 sq ft
Office · 1,413,575 sq ft
- Seattle Municipal Towerscore 86
Office · 1,354,987 sq ft
See also: most efficient in Seattle · biggest emitters
How does Moses Building compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Moses Building's ENERGY STAR score of 55 compares with an average of 76 across the 378 that report a score; it scores higher than 13% of them and lower than 86%. Its site EUI of 56.3 kBtu/ft² is about 26% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.6 kgCO₂e/ft² is about 130% above the group average of 0.7 kgCO₂e/ft².
At 26,830 sq ft, it is about 86% below the average floor area of 196,452 sq ft for those buildings. It was built in 1900, 65 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 Moses Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Moses Building, covering report years 2015–2025. Its ENERGY STAR score went from 43 in 2018 to 55 in 2025 (+12 points); its best year on file was 2020, at 64. Site EUI moved from 81.9 kBtu/ft² (2015) to 56.3 kBtu/ft² (2025), a 31% decrease. Reported emissions went from 55 tCO₂e to 43 tCO₂e over the same span (down 22%).
What does an ENERGY STAR score of 55 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 points below 75, the threshold for ENERGY STAR certification. In Seattle, 69% of scored buildings are at 75 or above.
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. Moses Building's 56.3 kBtu/ft² across 26,830 sq ft works out to about 1.5 billion Btu (443 MWh-equivalent) in 2025. Its source EUI of 110.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 229,318 kWh of electricity and 7,288 therms of natural gas for the year.
Which law requires Moses Building to report its energy use?
Moses 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:26706:2025). 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
- Lake Union Place· 26,694 sq ft · score 90 (A)
- Dearborn Bldg· 26,510 sq ft · score 80 (B)
- Office & Sports Club· 26,389 sq ft · EUI 29.2 kBtu/ft²
- K.r. Trigger Bldg· 26,310 sq ft · score 98 (A)
- North Pointe Non Residential Section· 26,263 sq ft · score 60 (C)
- 511 Boren Building· 26,176 sq ft · score 74 (B)
- 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 Moses Building's energy grade?
Moses Building scores 55 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Moses Building use?
Its 2025 site energy-use intensity was 56.3 kBtu/ft² (110.2 kBtu/ft² source) across 26,830 sq ft, including 229,318 kWh of electricity and 7,288 therms of natural gas.
What are Moses Building's carbon emissions?
Moses Building reported 43 tCO₂e of greenhouse-gas emissions (1.6 kgCO₂e/ft²) for 2025.
Where is Moses Building?
Moses Building is at 312 2ND AVE S, in Seattle, Washington 98104. Its coordinates are 47.59954, -122.33115 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Moses Building and when was it built?
Moses Building has 26,830 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1900 as its year built. It is classed as office.
Is Moses 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).
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, “Moses Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/moses-building-f144c94b (data as of October 2, 2026).