16 Unit Apartment
Multifamily Housing in Seattle, WA · 900 NOB HILL AVE N · 98109
At a glance
16 Unit Apartment is a 25,082-square-foot multifamily housing building at 900 NOB HILL AVE N in Seattle, Washington, built in 1963. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 25.7 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 | 25.7 kBtu/ft² |
| Source EUI | 71.9 kBtu/ft² |
| GHG emissions | 3 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 168,545 kWh |
| Gross floor area | 25,082 sq ft |
| Source record | seattle:27651:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 25.7 kBtu/ft² | 3 tCO₂e | |
| 2024 | — | 26.4 kBtu/ft² | 3 tCO₂e | |
| 2023 | — | 26.4 kBtu/ft² | 3 tCO₂e | |
| 2022 | — | 26.7 kBtu/ft² | 4 tCO₂e | |
| 2021 | — | 25.7 kBtu/ft² | 3 tCO₂e | |
| 2020 | — | 23.6 kBtu/ft² | 3 tCO₂e | |
| 2019 | — | 22.7 kBtu/ft² | 3 tCO₂e | |
| 2018 | — | 22.4 kBtu/ft² | 3 tCO₂e | |
| 2017 | — | 24.6 kBtu/ft² | 3 tCO₂e | |
| 2016 | — | 21.2 kBtu/ft² | 3 tCO₂e | |
| 2015 | — | 20.9 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.
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Location
- Address
- 900 NOB HILL AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62749, -122.34992
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 16 Unit Apartment 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 25.7 kBtu/ft² is about 26% 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 79% below the group average of 0.7 kgCO₂e/ft².
At 25,082 sq ft, it is about 71% below the average floor area of 86,468 sq ft for those buildings. It was built in 1963, 20 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 16 Unit Apartment's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for 16 Unit Apartment, covering report years 2015–2025. Site EUI moved from 20.9 kBtu/ft² (2015) to 25.7 kBtu/ft² (2025), an 23% increase. Reported emissions went from 3 tCO₂e to 3 tCO₂e over the same span (up 21%).
What does a site EUI of 25.7 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. 16 Unit Apartment's 25.7 kBtu/ft² across 25,082 sq ft works out to about 0.6 billion Btu (189 MWh-equivalent) in 2025. Its source EUI of 71.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 168,545 kWh of electricity for the year.
Which law requires 16 Unit Apartment to report its energy use?
16 Unit Apartment 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:27651:2025). 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
- Cape Flattery Apts· 25,056 sq ft · score 100 (A)
- Lavita Apartments· 25,032 sq ft · score 100 (A)
- Union Hotel Apartments· 25,027 sq ft · EUI 62.3 kBtu/ft²
- Firenze Apodment· 25,020 sq ft · score 100 (A)
- Ripple Rock Apts· 25,016 sq ft · score 93 (A)
- 714 Bellevue Ave E Condominium· 25,012 sq ft · EUI 26.9 kBtu/ft²
- 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 16 Unit Apartment's energy grade?
16 Unit Apartment did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 25.7 kBtu/ft².
How much energy does 16 Unit Apartment use?
Its 2025 site energy-use intensity was 25.7 kBtu/ft² (71.9 kBtu/ft² source) across 25,082 sq ft, including 168,545 kWh of electricity.
What are 16 Unit Apartment's carbon emissions?
16 Unit Apartment reported 3 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2025.
Where is 16 Unit Apartment?
16 Unit Apartment is at 900 NOB HILL AVE N, in Seattle, Washington 98109. Its coordinates are 47.62749, -122.34992 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 16 Unit Apartment and when was it built?
16 Unit Apartment has 25,082 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1963 as its year built. It is classed as multifamily housing.
Is 16 Unit Apartment 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, “16 Unit Apartment, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/16-unit-apartment-34202418 (data as of October 2, 2026).