At a glance
15th & Market Building (Includes Target Store) is a 279,102-square-foot office building at 1448 NW MARKET ST in Seattle, Washington, built in 2019. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 91 out of 100 (grade A) and a site energy-use intensity of 26.5 kBtu/ft². That score is higher than 73% of the 378 scored office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 91 (band A) |
| Site EUI | 26.5 kBtu/ft² |
| Source EUI | 74.1 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 1,537,537 kWh |
| Gross floor area | 279,102 sq ft |
| Source record | seattle:50545:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 91 | +11 | 26.5 kBtu/ft² | — |
| 2024 | 80 | +8 | 32.9 kBtu/ft² | 38 tCO₂e |
| 2023 | 72 | -6 | 42.3 kBtu/ft² | 45 tCO₂e |
| 2022 | 78 | +2 | 39.8 kBtu/ft² | 40 tCO₂e |
| 2021 | 76 | -19 | 40.5 kBtu/ft² | 40 tCO₂e |
| 2020 | 95 | 25.5 kBtu/ft² | 28 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
- 1448 NW MARKET ST
- City
- Seattle
- State
- Washington
- ZIP
- 98107
- Coordinates
- 47.66896, -122.37579
Within ~1 km
Nearby benchmarked buildings
- Urbana Apartmentsscore 100
Multifamily Housing · 473,387 sq ft
Hospital (General Medical & Surgical) · 451,526 sq ft
- Leva On Market Aptsscore 100
Multifamily Housing · 361,727 sq ft
- Odin Apartmentsscore 100
Multifamily Housing · 318,835 sq ft
- Ava Ballard Apartmentsscore 100
Multifamily Housing · 317,814 sq ft
- Ballard High (Sps-District)score 84
K-12 School · 242,795 sq ft
See also: most efficient in Seattle · biggest emitters
How does 15th & Market Building (Includes Target Store) compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. 15th & Market Building (Includes Target Store)'s ENERGY STAR score of 91 compares with an average of 76 across the 378 that report a score; it scores higher than 73% of them and lower than 24%. Its site EUI of 26.5 kBtu/ft² is about 41% below the average of 44.8 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 279,102 sq ft, it is about 42% above the average floor area of 196,452 sq ft for those buildings. It was built in 2019, 54 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 15th & Market Building (Includes Target Store)'s energy performance changed over time?
BuildingCensus holds 6 Seattle disclosures for 15th & Market Building (Includes Target Store), covering report years 2020–2025. Its ENERGY STAR score went from 95 in 2020 to 91 in 2025 (-4 points); its best year on file was 2020, at 95. Site EUI moved from 25.5 kBtu/ft² (2020) to 26.5 kBtu/ft² (2025), an 4% increase. Reported emissions went from 28 tCO₂e to 38 tCO₂e over the same span (up 35%).
What does an ENERGY STAR score of 91 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 91 means the building performs better than about 91% of its national peers. BuildingCensus bands the score into report-card grades; 91 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. 15th & Market Building (Includes Target Store)'s 26.5 kBtu/ft² across 279,102 sq ft works out to about 7.4 billion Btu (2,168 MWh-equivalent) in 2025. Its source EUI of 74.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,537,537 kWh of electricity for the year.
Which law requires 15th & Market Building (Includes Target Store) to report its energy use?
15th & Market Building (Includes Target Store) 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:50545:2025). 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 office buildings in Seattle
- 3131 Elliott Bldg· 277,486 sq ft · score 77 (B)
- 2323 Elliott - Parking & Office· 275,982 sq ft · EUI 11.5 kBtu/ft²
- Elliott Bay Office Park· 275,734 sq ft · score 97 (A)
- Seattle Children's Hospital Research Building #2· 274,362 sq ft · score 95 (A)
- 705 Union Station· 273,185 sq ft · score 79 (B)
- City Place Ii (Fiona)· 271,071 sq ft · score 97 (A)
- Office buildings in Seattle· 497 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 15th & Market Building (Includes Target Store)'s energy grade?
15th & Market Building (Includes Target Store) scores 91 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 15th & Market Building (Includes Target Store) use?
Its 2025 site energy-use intensity was 26.5 kBtu/ft² (74.1 kBtu/ft² source) across 279,102 sq ft, including 1,537,537 kWh of electricity.
What are 15th & Market Building (Includes Target Store)'s carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is 15th & Market Building (Includes Target Store)?
15th & Market Building (Includes Target Store) is at 1448 NW MARKET ST, in Seattle, Washington 98107. Its coordinates are 47.66896, -122.37579 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 15th & Market Building (Includes Target Store) and when was it built?
15th & Market Building (Includes Target Store) has 279,102 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2019 as its year built. It is classed as office.
Is 15th & Market Building (Includes Target Store) 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, “15th & Market Building (Includes Target Store), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/15th-market-building-includes-target-store-c21c23e7 (data as of October 2, 2026).