Othello Building
Mixed Use Property in Seattle, WA · 3815 S OTHELLO ST · 98118
At a glance
Othello Building is a 67,920-square-foot mixed use property building at 3815 S OTHELLO ST in Seattle, Washington, built in 2003. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 44.9 kBtu/ft² and 12 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 44.9 kBtu/ft² |
| Source EUI | 125.6 kBtu/ft² |
| GHG emissions | 12 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 625,152 kWh |
| Gross floor area | 67,920 sq ft |
| Source record | seattle:299:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 44.9 kBtu/ft² | 12 tCO₂e | |
| 2024 | — | 48.0 kBtu/ft² | 13 tCO₂e | |
| 2023 | — | 45.6 kBtu/ft² | 13 tCO₂e | |
| 2022 | — | 49.2 kBtu/ft² | 21 tCO₂e | |
| 2021 | — | 50.0 kBtu/ft² | 19 tCO₂e | |
| 2020 | — | 56.0 kBtu/ft² | 20 tCO₂e | |
| 2019 | — | 57.6 kBtu/ft² | 24 tCO₂e | |
| 2018 | — | 57.8 kBtu/ft² | 21 tCO₂e | |
| 2017 | — | 60.9 kBtu/ft² | 18 tCO₂e | |
| 2016 | — | 63.1 kBtu/ft² | 21 tCO₂e | |
| 2015 | — | 65.7 kBtu/ft² | 25 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
- 3815 S OTHELLO ST
- City
- Seattle
- State
- Washington
- ZIP
- 98118
- Coordinates
- 47.53685, -122.28406
Within ~1 km
Nearby benchmarked buildings
- Station At Othello Parkscore 93
Multifamily Housing · 387,971 sq ft
- Assembly118 Aptsscore 72
Multifamily Housing · 381,161 sq ft
- Orenda (rn185)score 96
Multifamily Housing · 193,783 sq ft
- Willow Crossing Apartmentsscore 97
Multifamily Housing · 163,673 sq ft
- Mercy Othello Plazascore 92
Multifamily Housing · 125,565 sq ft
Senior Living Community · 121,635 sq ft
See also: most efficient in Seattle · biggest emitters
How does Othello Building compare with other mixed use property buildings in Seattle?
The latest disclosures cover 157 mixed use property buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 44.9 kBtu/ft² is about 35% below the average of 68.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 81% below the group average of 1.4 kgCO₂e/ft².
At 67,920 sq ft, it is about 59% below the average floor area of 165,352 sq ft for those buildings. It was built in 2003, 35 years later than the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has Othello Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Othello Building, covering report years 2015–2025. Site EUI moved from 65.7 kBtu/ft² (2015) to 44.9 kBtu/ft² (2025), a 32% decrease. Reported emissions went from 25 tCO₂e to 12 tCO₂e over the same span (down 50%).
What does a site EUI of 44.9 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. Othello Building's 44.9 kBtu/ft² across 67,920 sq ft works out to about 3 billion Btu (894 MWh-equivalent) in 2025. Its source EUI of 125.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 625,152 kWh of electricity for the year.
Which law requires Othello Building to report its energy use?
Othello 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:299:2025). 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 mixed use property buildings in Seattle
- Filson World Headquarters Lp· 66,480 sq ft · EUI 146.9 kBtu/ft²
- Kcpq (Fox13)· 66,462 sq ft · EUI 139.6 kBtu/ft²
- Market House Condominium· 66,460 sq ft · EUI 72.5 kBtu/ft²
- Mann Building/Wild Ginger/Triple Door· 64,597 sq ft · EUI 162.2 kBtu/ft²
- Interbay Building (Office & Warehouse)· 57,644 sq ft · EUI 50.2 kBtu/ft²
- Compass Housing Alliance· 57,600 sq ft · EUI 107.5 kBtu/ft²
- Mixed Use Property buildings in Seattle· 157 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 Othello Building's energy grade?
Othello Building did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 44.9 kBtu/ft².
How much energy does Othello Building use?
Its 2025 site energy-use intensity was 44.9 kBtu/ft² (125.6 kBtu/ft² source) across 67,920 sq ft, including 625,152 kWh of electricity.
What are Othello Building's carbon emissions?
Othello Building reported 12 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is Othello Building?
Othello Building is at 3815 S OTHELLO ST, in Seattle, Washington 98118. Its coordinates are 47.53685, -122.28406 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Othello Building and when was it built?
Othello Building has 67,920 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2003 as its year built. It is classed as mixed use property.
Is Othello 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, “Othello Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/othello-building-53dd9892 (data as of October 2, 2026).