Helene Apartments- Greenlake
Multifamily Housing in Seattle, WA · 414 NE RAVENNA BLVD · 98115
At a glance
Helene Apartments- Greenlake is a 45,877-square-foot multifamily housing building at 414 NE RAVENNA BLVD in Seattle, Washington, built in 2015. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 27.0 kBtu/ft² and 27 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 27.0 kBtu/ft² |
| Source EUI | 57.3 kBtu/ft² |
| GHG emissions | 27 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 202,798 kWh |
| Natural gas | 4,386 therms |
| Gross floor area | 45,877 sq ft |
| Source record | seattle:50323:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 27.0 kBtu/ft² | 27 tCO₂e | |
| 2024 | — | 26.6 kBtu/ft² | 28 tCO₂e | |
| 2023 | — | 26.9 kBtu/ft² | 29 tCO₂e | |
| 2022 | — | 27.8 kBtu/ft² | 29 tCO₂e | |
| 2021 | — | 25.1 kBtu/ft² | 27 tCO₂e | |
| 2020 | — | 24.9 kBtu/ft² | 28 tCO₂e | |
| 2019 | 100 | ±0 | 26.6 kBtu/ft² | 28 tCO₂e |
| 2018 | 100 | 13.0 kBtu/ft² | 4 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
- 414 NE RAVENNA BLVD
- City
- Seattle
- State
- Washington
- ZIP
- 98115
- Coordinates
- 47.67864, -122.32397
Within ~1 km
Nearby benchmarked buildings
- Cedar Crossingscore —
Multifamily Housing · 338,414 sq ft
- Green Lake Village Aptsscore 66
Multifamily Housing · 292,376 sq ft
- Eleanor Apartments (el348)score 99
Multifamily Housing · 273,568 sq ft
Multifamily Housing · 249,530 sq ft
- Roosevelt Square/ 60845score —
Strip Mall · 228,385 sq ft
- Rooster Aptsscore 99
Multifamily Housing · 213,952 sq ft
See also: most efficient in Seattle · biggest emitters
How does Helene Apartments- Greenlake compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 27.0 kBtu/ft² is about 23% below the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.6 kgCO₂e/ft² is about 10% below the group average of 0.7 kgCO₂e/ft².
At 45,877 sq ft, it is about half of the average floor area of 86,468 sq ft for those buildings. It was built in 2015, 32 years later than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Helene Apartments- Greenlake's energy performance changed over time?
BuildingCensus holds 8 Seattle disclosures for Helene Apartments- Greenlake, covering report years 2018–2025. Its ENERGY STAR score was 100 in both 2018 and 2019. Site EUI moved from 13.0 kBtu/ft² (2018) to 27.0 kBtu/ft² (2025), an 108% increase. Reported emissions went from 4 tCO₂e to 27 tCO₂e over the same span (up 659%).
What does a site EUI of 27.0 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. Helene Apartments- Greenlake's 27.0 kBtu/ft² across 45,877 sq ft works out to about 1.2 billion Btu (363 MWh-equivalent) in 2025. Its source EUI of 57.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 202,798 kWh of electricity and 4,386 therms of natural gas for the year.
Which law requires Helene Apartments- Greenlake to report its energy use?
Helene Apartments- Greenlake 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:50323:2025). 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 multifamily housing buildings in Seattle
- Santos Place Apt· 45,760 sq ft · score 42 (D)
- 500 Elliott Homes Condominium· 45,715 sq ft · score 93 (A)
- Alderview Apts· 45,640 sq ft · score 81 (B)
- Eastlake Garden Apts & Retail· 45,580 sq ft · EUI 39.0 kBtu/ft²
- Raleigh Manor Apts· 45,579 sq ft · score 95 (A)
- Harborview Apts· 45,564 sq ft · score 82 (B)
- Multifamily Housing buildings in Seattle· 1,971 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 Helene Apartments- Greenlake's energy grade?
Helene Apartments- Greenlake did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 27.0 kBtu/ft².
How much energy does Helene Apartments- Greenlake use?
Its 2025 site energy-use intensity was 27.0 kBtu/ft² (57.3 kBtu/ft² source) across 45,877 sq ft, including 202,798 kWh of electricity and 4,386 therms of natural gas.
What are Helene Apartments- Greenlake's carbon emissions?
Helene Apartments- Greenlake reported 27 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025.
Where is Helene Apartments- Greenlake?
Helene Apartments- Greenlake is at 414 NE RAVENNA BLVD, in Seattle, Washington 98115. Its coordinates are 47.67864, -122.32397 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Helene Apartments- Greenlake and when was it built?
Helene Apartments- Greenlake has 45,877 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2015 as its year built. It is classed as multifamily housing.
Is Helene Apartments- Greenlake 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, “Helene Apartments- Greenlake, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/helene-apartments-greenlake-92e1cf5b (data as of October 2, 2026).