4721 38th Ave Sw
Multifamily Housing in Seattle, WA · 4721 38TH AVE SW · 98126
At a glance
4721 38th Ave Sw is a 44,710-square-foot multifamily housing building at 4721 38TH AVE SW in Seattle, Washington, built in 2020. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 22.9 kBtu/ft² and 153 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 100 (band A) |
| Site EUI | 22.9 kBtu/ft² |
| Source EUI | 50.1 kBtu/ft² |
| GHG emissions | 153 tCO₂e |
| GHG intensity | 0.5 kgCO₂e/ft² |
| Electricity | 1,443,608 kWh |
| Natural gas | 23,546 therms |
| Gross floor area | 44,710 sq ft |
| Source record | seattle:50913:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | +1 | 22.9 kBtu/ft² | 153 tCO₂e |
| 2024 | 99 | ±0 | 36.1 kBtu/ft² | 153 tCO₂e |
| 2023 | 99 | 36.0 kBtu/ft² | 157 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
- 4721 38TH AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98126
- Coordinates
- 47.56047, -122.38050
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 4721 38th Ave Sw 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. 4721 38th Ave Sw's ENERGY STAR score of 100 compares with an average of 83 across the 1,652 that report a score; it scores higher than 88% of them. Its site EUI of 22.9 kBtu/ft² is about 34% 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 0.5 kgCO₂e/ft² is about 31% below the group average of 0.7 kgCO₂e/ft².
At 44,710 sq ft, it is about half of the average floor area of 86,468 sq ft for those buildings. It was built in 2020, 37 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 4721 38th Ave Sw's energy performance changed over time?
BuildingCensus holds 3 Seattle disclosures for 4721 38th Ave Sw, covering report years 2023–2025. Its ENERGY STAR score went from 99 in 2023 to 100 in 2025 (+1 points). Site EUI moved from 36.0 kBtu/ft² (2023) to 22.9 kBtu/ft² (2025), a 36% decrease. Reported emissions went from 157 tCO₂e to 153 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 4721 38th Ave Sw's 22.9 kBtu/ft² across 44,710 sq ft works out to about 1 billion Btu (300 MWh-equivalent) in 2025. Its source EUI of 50.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,443,608 kWh of electricity and 23,546 therms of natural gas for the year.
Which law requires 4721 38th Ave Sw to report its energy use?
4721 38th Ave Sw 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:50913:2025). 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
- Overlook At Magnolia (Bldg B)· 44,687 sq ft · score 80 (B)
- 733 Summit East· 44,672 sq ft · score 15 (D)
- North 45 Apartments· 44,656 sq ft · score 83 (B)
- Pacific Center Condominium· 44,650 sq ft · score 76 (B)
- Roosevelt Ridge (A-C)· 44,645 sq ft · score 68 (C)
- Talisman Condominium· 44,616 sq ft · score 94 (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 4721 38th Ave Sw's energy grade?
4721 38th Ave Sw scores 100 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 4721 38th Ave Sw use?
Its 2025 site energy-use intensity was 22.9 kBtu/ft² (50.1 kBtu/ft² source) across 44,710 sq ft, including 1,443,608 kWh of electricity and 23,546 therms of natural gas.
What are 4721 38th Ave Sw's carbon emissions?
4721 38th Ave Sw reported 153 tCO₂e of greenhouse-gas emissions (0.5 kgCO₂e/ft²) for 2025.
Where is 4721 38th Ave Sw?
4721 38th Ave Sw is at 4721 38TH AVE SW, in Seattle, Washington 98126. Its coordinates are 47.56047, -122.38050 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 4721 38th Ave Sw and when was it built?
4721 38th Ave Sw has 44,710 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2020 as its year built. It is classed as multifamily housing.
Is 4721 38th Ave Sw 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, “4721 38th Ave Sw, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/4721-38th-ave-sw-3dfb6586 (data as of October 2, 2026).