Mark On 8th
Multifamily Housing in Seattle, WA · 285 8TH AVE N · 98109
At a glance
Mark On 8th is a 187,070-square-foot multifamily housing building at 285 8TH AVE N in Seattle, Washington, built in 2016. 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 22.6 kBtu/ft² and 80 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 | 22.6 kBtu/ft² |
| Source EUI | 47.0 kBtu/ft² |
| GHG emissions | 80 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 561,849 kWh |
| Natural gas | 13,502 therms |
| Gross floor area | 187,070 sq ft |
| Source record | seattle:50253:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 100 | ±0 | 22.6 kBtu/ft² | 80 tCO₂e |
| 2024 | 100 | ±0 | 22.3 kBtu/ft² | 83 tCO₂e |
| 2023 | 100 | ±0 | 23.6 kBtu/ft² | 89 tCO₂e |
| 2022 | 100 | ±0 | 25.7 kBtu/ft² | 106 tCO₂e |
| 2021 | 100 | ±0 | 23.5 kBtu/ft² | 91 tCO₂e |
| 2020 | 100 | ±0 | 22.8 kBtu/ft² | 85 tCO₂e |
| 2019 | 100 | 22.9 kBtu/ft² | 91 tCO₂e | |
| 2018 | — | 29.2 kBtu/ft² | 98 tCO₂e | |
| 2017 | — | 29.7 kBtu/ft² | 101 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
- 285 8TH AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62069, -122.34138
Within ~1 km
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How does Mark On 8th 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. Mark On 8th'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 22.6 kBtu/ft² is about 35% 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 0.6 kgCO₂e/ft² is about 20% below the group average of 0.7 kgCO₂e/ft².
At 187,070 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. It was built in 2016, 33 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 Mark On 8th's energy performance changed over time?
BuildingCensus holds 9 Seattle disclosures for Mark On 8th, covering report years 2017–2025. Its ENERGY STAR score was 100 in both 2019 and 2025. Site EUI moved from 29.7 kBtu/ft² (2017) to 22.6 kBtu/ft² (2025), a 24% decrease. Reported emissions went from 101 tCO₂e to 80 tCO₂e over the same span (down 21%).
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. Mark On 8th's 22.6 kBtu/ft² across 187,070 sq ft works out to about 4.2 billion Btu (1,239 MWh-equivalent) in 2025. Its source EUI of 47.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 561,849 kWh of electricity and 13,502 therms of natural gas for the year.
Which law requires Mark On 8th to report its energy use?
Mark On 8th 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:50253:2025). 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
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- Gridiron Condos (Stadium Lofts)· 185,614 sq ft · EUI 46.7 kBtu/ft²
- Market Place North Phase I Condominium· 185,506 sq ft · score 18 (D)
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- Multifamily Housing buildings in Seattle· 1,971 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
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Frequently asked questions
What is Mark On 8th's energy grade?
Mark On 8th 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 Mark On 8th use?
Its 2025 site energy-use intensity was 22.6 kBtu/ft² (47.0 kBtu/ft² source) across 187,070 sq ft, including 561,849 kWh of electricity and 13,502 therms of natural gas.
What are Mark On 8th's carbon emissions?
Mark On 8th reported 80 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025.
Where is Mark On 8th?
Mark On 8th is at 285 8TH AVE N, in Seattle, Washington 98109. Its coordinates are 47.62069, -122.34138 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Mark On 8th and when was it built?
Mark On 8th has 187,070 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2016 as its year built. It is classed as multifamily housing.
Is Mark On 8th 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, “Mark On 8th, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/mark-on-8th-4759431e (data as of October 2, 2026).