BuildingCensus
D

WATERWORKS OFFICE & MARINA

Office in Seattle, WA · 1818 WESTLAKE AVE N · 98109

ENERGY STAR score
12
band D · 2024
Site EUI
144.8
kBtu/ft²
GHG emissions
136
tCO₂e
GHG intensity
4.4
kgCO₂e/ft²
Floor area
30,840
sq ft
Year built
1965
vintage
◆ Loading map…
85–10070–8455–691–54
This entry + 6 nearby

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

Benchmarking record

FieldValue
ENERGY STAR score12 (band D)
Site EUI144.8 kBtu/ft²
Source EUI273.5 kBtu/ft²
GHG emissions136 tCO₂e
GHG intensity4.4 kgCO₂e/ft²
Electricity627,624 kWh
Natural gas23,238 therms
Gross floor area30,840 sq ft
Source recordseattle:25464:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest12-2144.8 kBtu/ft²136 tCO₂e
202314+1145.0 kBtu/ft²140 tCO₂e
202213-5140.6 kBtu/ft²125 tCO₂e
202118+2128.9 kBtu/ft²110 tCO₂e
202016-6141.9 kBtu/ft²126 tCO₂e
201922-20122.6 kBtu/ft²100 tCO₂e
201842+1893.8 kBtu/ft²78 tCO₂e
201724-6134.6 kBtu/ft²122 tCO₂e
201630-5116.4 kBtu/ft²99 tCO₂e
201535112.4 kBtu/ft²99 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.

Own or manage this building? Claim it to correct the record and get compliance alerts.

Location

Address
1818 WESTLAKE AVE N
State
Washington
ZIP
98109
Coordinates
47.63575, -122.33895

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is WATERWORKS OFFICE & MARINA's energy grade?

WATERWORKS OFFICE & MARINA scores 12 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2024 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does WATERWORKS OFFICE & MARINA use?

Its 2024 site energy-use intensity was 144.8 kBtu/ft² (273.5 kBtu/ft² source) across 30,840 sq ft, including 627,624 kWh of electricity and 23,238 therms of natural gas.

What are WATERWORKS OFFICE & MARINA's carbon emissions?

WATERWORKS OFFICE & MARINA reported 136 tCO₂e of greenhouse-gas emissions (4.4 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:25464:2024.