BuildingCensus
A

HARBOR SQUARE APTS

Multifamily LR (1-4) in Seattle, WA · 2425 HARBOR AVE SW · 98126

ENERGY STAR score
100
band A · 2024
Site EUI
19.4
kBtu/ft²
GHG emissions
5
tCO₂e
GHG intensity
0.2
kgCO₂e/ft²
Floor area
28,033
sq ft
Year built
1990
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score100 (band A)
Site EUI19.4 kBtu/ft²
Source EUI50.2 kBtu/ft²
GHG emissions5 tCO₂e
GHG intensity0.2 kgCO₂e/ft²
Electricity114,006 kWh
Natural gas530 therms
Gross floor area28,033 sq ft
Source recordseattle:20112:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest100±019.4 kBtu/ft²5 tCO₂e
2023100+723.0 kBtu/ft²9 tCO₂e
202293-140.0 kBtu/ft²29 tCO₂e
202194-127.6 kBtu/ft²21 tCO₂e
20209526.6 kBtu/ft²22 tCO₂e
201927.5 kBtu/ft²23 tCO₂e
201827.9 kBtu/ft²24 tCO₂e
201729.3 kBtu/ft²24 tCO₂e
201621-5331.6 kBtu/ft²25 tCO₂e
20157432.6 kBtu/ft²26 tCO₂e

Compliance context

Seattle Energy Benchmarking Ordinance (SMC 22.920)

Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.

Program details →

Ownership

No owner listed in the disclosure.

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Location

Address
2425 HARBOR AVE SW
State
Washington
ZIP
98126
Coordinates
47.58163, -122.37355

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is HARBOR SQUARE APTS's energy grade?

HARBOR SQUARE APTS scores 100 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2024 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does HARBOR SQUARE APTS use?

Its 2024 site energy-use intensity was 19.4 kBtu/ft² (50.2 kBtu/ft² source) across 28,033 sq ft, including 114,006 kWh of electricity and 530 therms of natural gas.

What are HARBOR SQUARE APTS's carbon emissions?

HARBOR SQUARE APTS reported 5 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2024. Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.

Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:20112:2024.