Fireside Lanai Condominium
Multifamily Housing in Seattle, WA · 901 5TH AVE N · 98109
At a glance
Fireside Lanai Condominium is a 22,208-square-foot multifamily housing building at 901 5TH AVE N in Seattle, Washington, built in 1965. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 23.5 kBtu/ft² and 3 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 23.5 kBtu/ft² |
| Source EUI | 65.9 kBtu/ft² |
| GHG emissions | 3 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 153,073 kWh |
| Gross floor area | 22,208 sq ft |
| Source record | seattle:21940:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 23.5 kBtu/ft² | 3 tCO₂e | |
| 2024 | — | 24.6 kBtu/ft² | 3 tCO₂e | |
| 2023 | — | 27.6 kBtu/ft² | 4 tCO₂e | |
| 2022 | — | 28.2 kBtu/ft² | 4 tCO₂e | |
| 2021 | — | 24.6 kBtu/ft² | 3 tCO₂e | |
| 2020 | — | 27.0 kBtu/ft² | 4 tCO₂e | |
| 2019 | — | 27.7 kBtu/ft² | 4 tCO₂e | |
| 2018 | — | 28.2 kBtu/ft² | 4 tCO₂e | |
| 2017 | — | 28.2 kBtu/ft² | 4 tCO₂e | |
| 2016 | 46 | -31 | 25.7 kBtu/ft² | 3 tCO₂e |
| 2015 | 77 | 25.3 kBtu/ft² | 3 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
- 901 5TH AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62753, -122.34800
Within ~1 km
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How does Fireside Lanai Condominium 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 23.5 kBtu/ft² is about 33% 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 0.1 kgCO₂e/ft² is about 81% below the group average of 0.7 kgCO₂e/ft².
At 22,208 sq ft, it is about 74% below the average floor area of 86,468 sq ft for those buildings. It was built in 1965, 18 years earlier 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 Fireside Lanai Condominium's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Fireside Lanai Condominium, covering report years 2015–2025. Its ENERGY STAR score went from 77 in 2015 to 46 in 2016 (-31 points); its best year on file was 2015, at 77. Site EUI moved from 25.3 kBtu/ft² (2015) to 23.5 kBtu/ft² (2025), a 7% decrease. Reported emissions went from 3 tCO₂e to 3 tCO₂e over the same span (down 10%).
What does a site EUI of 23.5 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. Fireside Lanai Condominium's 23.5 kBtu/ft² across 22,208 sq ft works out to about 0.5 billion Btu (153 MWh-equivalent) in 2025. Its source EUI of 65.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 153,073 kWh of electricity for the year.
Which law requires Fireside Lanai Condominium to report its energy use?
Fireside Lanai Condominium 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:21940:2025). 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
- Holly Terrace Condominium· 22,207 sq ft · EUI 28.4 kBtu/ft²
- Westview Manor Condominium· 22,202 sq ft · score 90 (A)
- The 419 Bldg Apts· 22,200 sq ft · score 87 (A)
- Marnae Apts· 22,195 sq ft · score 82 (B)
- Queen Anne Thomas Apts· 22,177 sq ft · score 87 (A)
- Los Angeles Cooperative Apartments· 22,160 sq ft · score 96 (A)
- 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 Fireside Lanai Condominium's energy grade?
Fireside Lanai Condominium did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 23.5 kBtu/ft².
How much energy does Fireside Lanai Condominium use?
Its 2025 site energy-use intensity was 23.5 kBtu/ft² (65.9 kBtu/ft² source) across 22,208 sq ft, including 153,073 kWh of electricity.
What are Fireside Lanai Condominium's carbon emissions?
Fireside Lanai Condominium reported 3 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2025.
Where is Fireside Lanai Condominium?
Fireside Lanai Condominium is at 901 5TH AVE N, in Seattle, Washington 98109. Its coordinates are 47.62753, -122.34800 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Fireside Lanai Condominium and when was it built?
Fireside Lanai Condominium has 22,208 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is Fireside Lanai Condominium 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, “Fireside Lanai Condominium, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/fireside-lanai-condominium-15fe17e7 (data as of October 2, 2026).