Landmark Building
Medical Office in Seattle, WA · 11000 LAKE CITY WAY NE · 98125
At a glance
Landmark Building is a 23,022-square-foot medical office at 11000 LAKE CITY WAY NE in Seattle, Washington, built in 1980. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 42.6 kBtu/ft² and 19 tCO₂e of greenhouse-gas emissions. That score is higher than 81% of the 32 scored medical office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 42.6 kBtu/ft² |
| Source EUI | 95.5 kBtu/ft² |
| GHG emissions | 19 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 192,651 kWh |
| Natural gas | 3,103 therms |
| Gross floor area | 23,022 sq ft |
| Source record | seattle:25268:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 94 | +1 | 42.6 kBtu/ft² | 19 tCO₂e |
| 2024 | 93 | +1 | 43.3 kBtu/ft² | 20 tCO₂e |
| 2023 | 92 | +1 | 43.8 kBtu/ft² | 20 tCO₂e |
| 2022 | 91 | -2 | 46.0 kBtu/ft² | 21 tCO₂e |
| 2021 | 93 | +10 | 38.2 kBtu/ft² | 4 tCO₂e |
| 2020 | 83 | +11 | 31.8 kBtu/ft² | 4 tCO₂e |
| 2019 | 72 | +4 | 45.7 kBtu/ft² | 18 tCO₂e |
| 2018 | 68 | -7 | 47.8 kBtu/ft² | 17 tCO₂e |
| 2017 | 75 | -3 | 48.9 kBtu/ft² | 16 tCO₂e |
| 2016 | 78 | -3 | 44.6 kBtu/ft² | 14 tCO₂e |
| 2015 | 81 | 42.9 kBtu/ft² | 13 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
- 11000 LAKE CITY WAY NE
- City
- Seattle
- State
- Washington
- ZIP
- 98125
- Coordinates
- 47.70868, -122.30089
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Landmark Building compare with other medical office buildings in Seattle?
The latest disclosures cover 45 medical office buildings in Seattle, out of 3,871 buildings citywide. Landmark Building's ENERGY STAR score of 94 compares with an average of 60 across the 32 that report a score; it scores higher than 81% of them and lower than 9%. Its site EUI of 42.6 kBtu/ft² is about half of the average of 88.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 43% below the group average of 1.5 kgCO₂e/ft².
At 23,022 sq ft, it is about 84% below the average floor area of 145,612 sq ft for those buildings. Its 1980 construction date is close to the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has Landmark Building's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Landmark Building, covering report years 2015–2025. Its ENERGY STAR score went from 81 in 2015 to 94 in 2025 (+13 points). Site EUI moved from 42.9 kBtu/ft² (2015) to 42.6 kBtu/ft² (2025), a 1% decrease. Reported emissions went from 13 tCO₂e to 19 tCO₂e over the same span (up 44%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. Landmark Building's 42.6 kBtu/ft² across 23,022 sq ft works out to about 1 billion Btu (287 MWh-equivalent) in 2025. Its source EUI of 95.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 192,651 kWh of electricity and 3,103 therms of natural gas for the year.
Which law requires Landmark Building to report its energy use?
Landmark Building 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:25268:2025). 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 medical office buildings in Seattle
Frequently asked questions
What is Landmark Building's energy grade?
Landmark Building scores 94 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 Landmark Building use?
Its 2025 site energy-use intensity was 42.6 kBtu/ft² (95.5 kBtu/ft² source) across 23,022 sq ft, including 192,651 kWh of electricity and 3,103 therms of natural gas.
What are Landmark Building's carbon emissions?
Landmark Building reported 19 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.
Where is Landmark Building?
Landmark Building is at 11000 LAKE CITY WAY NE, in Seattle, Washington 98125. Its coordinates are 47.70868, -122.30089 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Landmark Building and when was it built?
Landmark Building has 23,022 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1980 as its year built. It is classed as medical office.
Is Landmark Building 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, “Landmark Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/landmark-building-47a05b9b (data as of October 2, 2026).