BuildingCensus
A

Viceroy Apts

Multifamily Housing in Seattle, WA · 505 BOYLSTON AVE E · 98102

ENERGY STAR score
92
band A · 2025
Site EUI
46.6
kBtu/ft²
GHG emissions
67
tCO₂e
GHG intensity
1.9
kgCO₂e/ft²
Floor area
41,241
sq ft
Year built
1930
vintage
◆ Loading map…
85–10070–8455–691–54
This entry + 6 nearby

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

Benchmarking record

FieldValue
ENERGY STAR score92 (band A)
Site EUI46.6 kBtu/ft²
Source EUI68.7 kBtu/ft²
GHG emissions67 tCO₂e
GHG intensity1.9 kgCO₂e/ft²
Electricity116,147 kWh
Natural gas12,413 therms
Gross floor area41,241 sq ft
Source recordseattle:25177:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest92-546.6 kBtu/ft²67 tCO₂e
202497+137.5 kBtu/ft²51 tCO₂e
202396+9140.7 kBtu/ft²57 tCO₂e
20225+4130.7 kBtu/ft²226 tCO₂e
20211-96159.3 kBtu/ft²280 tCO₂e
202097+1442.7 kBtu/ft²64 tCO₂e
201983+759.3 kBtu/ft²96 tCO₂e
201876-364.7 kBtu/ft²107 tCO₂e
201779+1069.1 kBtu/ft²114 tCO₂e
201669+568.2 kBtu/ft²111 tCO₂e
20156469.7 kBtu/ft²113 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.

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

Location

Address
505 BOYLSTON AVE E
State
Washington
ZIP
98102
Coordinates
47.62328, -122.32343

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Seattle · biggest emitters

Frequently asked questions

What is Viceroy Apts's energy grade?

Viceroy Apts scores 92 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 Viceroy Apts use?

Its 2025 site energy-use intensity was 46.6 kBtu/ft² (68.7 kBtu/ft² source) across 41,241 sq ft, including 116,147 kWh of electricity and 12,413 therms of natural gas.

What are Viceroy Apts's carbon emissions?

Viceroy Apts reported 67 tCO₂e of greenhouse-gas emissions (1.9 kgCO₂e/ft²) for 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.

Working with Seattle building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:25177:2025.