Elizabeth Thomas Homes
Multifamily Housing in Seattle, WA · 4524 S HENDERSON ST · 98118
At a glance
Elizabeth Thomas Homes is a 101,267-square-foot multifamily housing building at 4524 S HENDERSON ST in Seattle, Washington, built in 2022. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 27.1 kBtu/ft² and 16 tCO₂e of greenhouse-gas emissions. That score is higher than 65% of the 1,652 scored multifamily housing buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 27.1 kBtu/ft² |
| Source EUI | 75.8 kBtu/ft² |
| GHG emissions | 16 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 803,337 kWh |
| Gross floor area | 101,267 sq ft |
| Source record | seattle:51991:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 96 | +3 | 27.1 kBtu/ft² | 16 tCO₂e |
| 2024 | 93 | 29.0 kBtu/ft² | 17 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.
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Location
- Address
- 4524 S HENDERSON ST
- City
- Seattle
- State
- Washington
- ZIP
- 98118
- Coordinates
- 47.52358, -122.27564
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Elizabeth Thomas Homes 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. Elizabeth Thomas Homes's ENERGY STAR score of 96 compares with an average of 83 across the 1,652 that report a score; it scores higher than 65% of them and lower than 30%. Its site EUI of 27.1 kBtu/ft² is about 22% 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 0.2 kgCO₂e/ft² is about 77% below the group average of 0.7 kgCO₂e/ft².
At 101,267 sq ft, it is about 17% above the average floor area of 86,468 sq ft for those buildings. It was built in 2022, 39 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 Elizabeth Thomas Homes's energy performance changed over time?
BuildingCensus holds 2 Seattle disclosures for Elizabeth Thomas Homes, covering report years 2024–2025. Its ENERGY STAR score went from 93 in 2024 to 96 in 2025 (+3 points). Site EUI moved from 29.0 kBtu/ft² (2024) to 27.1 kBtu/ft² (2025), a 7% decrease. Reported emissions went from 17 tCO₂e to 16 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Elizabeth Thomas Homes's 27.1 kBtu/ft² across 101,267 sq ft works out to about 2.7 billion Btu (804 MWh-equivalent) in 2025. Its source EUI of 75.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 803,337 kWh of electricity for the year.
Which law requires Elizabeth Thomas Homes to report its energy use?
Elizabeth Thomas Homes 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:51991:2025). 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
- La Vie At Queen Anne· 101,192 sq ft · score 69 (C)
- Liberty Bank Building· 101,046 sq ft · score 99 (A)
- Fireside Flats· 101,031 sq ft · score 100 (A)
- Westwood Heights· 100,536 sq ft · score 72 (B)
- Mysa Apartments· 100,435 sq ft · score 99 (A)
- Elan 41 (Used To Be Jefferson Square Apartments)· 100,406 sq ft · score 90 (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 Elizabeth Thomas Homes's energy grade?
Elizabeth Thomas Homes scores 96 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Elizabeth Thomas Homes use?
Its 2025 site energy-use intensity was 27.1 kBtu/ft² (75.8 kBtu/ft² source) across 101,267 sq ft, including 803,337 kWh of electricity.
What are Elizabeth Thomas Homes's carbon emissions?
Elizabeth Thomas Homes reported 16 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is Elizabeth Thomas Homes?
Elizabeth Thomas Homes is at 4524 S HENDERSON ST, in Seattle, Washington 98118. Its coordinates are 47.52358, -122.27564 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Elizabeth Thomas Homes and when was it built?
Elizabeth Thomas Homes has 101,267 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2022 as its year built. It is classed as multifamily housing.
Is Elizabeth Thomas Homes 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, “Elizabeth Thomas Homes, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/elizabeth-thomas-homes-d8879251 (data as of October 2, 2026).