BuildingCensus
D

Tri-Court

Multifamily Housing in Seattle, WA · 718 N 143RD ST · 98133

At a glance

Tri-Court is a 57,247-square-foot multifamily housing building at 718 N 143RD ST in Seattle, Washington, built in 1970. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 35 out of 100 (grade D), a site energy-use intensity of 48.9 kBtu/ft² and 44 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 1,652 scored multifamily housing buildings in Seattle.

ENERGY STAR score
35
band D · 2025
Site EUI
48.9
kBtu/ft²
GHG emissions
44
tCO₂e
GHG intensity
0.8
kgCO₂e/ft²
Floor area
57,247
sq ft
Year built
1970
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score35 (band D)
Site EUI48.9 kBtu/ft²
Source EUI118.6 kBtu/ft²
GHG emissions44 tCO₂e
GHG intensity0.8 kgCO₂e/ft²
Electricity644,872 kWh
Natural gas5,967 therms
Gross floor area57,247 sq ft
Source recordseattle:21202:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest35+448.9 kBtu/ft²44 tCO₂e
202431-248.7 kBtu/ft²44 tCO₂e
202333±048.8 kBtu/ft²43 tCO₂e
202233+152.8 kBtu/ft²54 tCO₂e
202132-454.0 kBtu/ft²60 tCO₂e
202036+151.7 kBtu/ft²60 tCO₂e
201935-352.0 kBtu/ft²58 tCO₂e
201838+151.6 kBtu/ft²60 tCO₂e
201737-253.0 kBtu/ft²60 tCO₂e
201639+1150.1 kBtu/ft²64 tCO₂e
20152846.5 kBtu/ft²55 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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
718 N 143RD ST
State
Washington
ZIP
98133
Coordinates
47.73269, -122.34952

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

How does Tri-Court 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. Tri-Court's ENERGY STAR score of 35 compares with an average of 83 across the 1,652 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 48.9 kBtu/ft² is about 40% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.8 kgCO₂e/ft² is about 10% above the group average of 0.7 kgCO₂e/ft².

At 57,247 sq ft, it is about 34% below the average floor area of 86,468 sq ft for those buildings. It was built in 1970, 13 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 Tri-Court's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Tri-Court, covering report years 2015–2025. Its ENERGY STAR score went from 28 in 2015 to 35 in 2025 (+7 points); its best year on file was 2016, at 39. Site EUI moved from 46.5 kBtu/ft² (2015) to 48.9 kBtu/ft² (2025), an 5% increase. Reported emissions went from 55 tCO₂e to 44 tCO₂e over the same span (down 20%).

What does an ENERGY STAR score of 35 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 35 means the building performs better than about 35% of its national peers. BuildingCensus bands the score into report-card grades; 35 falls in band D — lowest band (1–54). It sits 40 points below 75, the threshold for ENERGY STAR certification. 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. Tri-Court's 48.9 kBtu/ft² across 57,247 sq ft works out to about 2.8 billion Btu (820 MWh-equivalent) in 2025. Its source EUI of 118.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 644,872 kWh of electricity and 5,967 therms of natural gas for the year.

Which law requires Tri-Court to report its energy use?

Tri-Court 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:21202:2025). 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

Frequently asked questions

What is Tri-Court's energy grade?

Tri-Court scores 35 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Tri-Court use?

Its 2025 site energy-use intensity was 48.9 kBtu/ft² (118.6 kBtu/ft² source) across 57,247 sq ft, including 644,872 kWh of electricity and 5,967 therms of natural gas.

What are Tri-Court's carbon emissions?

Tri-Court reported 44 tCO₂e of greenhouse-gas emissions (0.8 kgCO₂e/ft²) for 2025.

Where is Tri-Court?

Tri-Court is at 718 N 143RD ST, in Seattle, Washington 98133. Its coordinates are 47.73269, -122.34952 (latitude, longitude), as published in the Building Energy Benchmarking file.

How big is Tri-Court and when was it built?

Tri-Court has 57,247 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1970 as its year built. It is classed as multifamily housing.

Is Tri-Court 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, “Tri-Court, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/tri-court-76eb4191 (data as of October 2, 2026).