BuildingCensus
D

1666 K St NW

Office in Washington, DC, DC · 20006

ENERGY STAR score
51
band D · 2024
Site EUI
54.6
kBtu/ft²
GHG emissions
1,485
tCO₂e
GHG intensity
4.8
kgCO₂e/ft²
Floor area
309,643
sq ft
Year built
1974
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Clean and Affordable Energy Act / BEPS · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score51 (band D)
Site EUI54.6 kBtu/ft²
Source EUI153.0 kBtu/ft²
GHG emissions1,485 tCO₂e
GHG intensity4.8 kgCO₂e/ft²
Electricity4,958,805 kWh
Natural gas0 therms
Water use8,185 kgal
Gross floor area309,643 sq ft
Source recorddc:PM1423975:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest51-654.6 kBtu/ft²1,485 tCO₂e
202357±051.0 kBtu/ft²1,419 tCO₂e
202257+152.7 kBtu/ft²1,420 tCO₂e
202156-1852.1 kBtu/ft²1,498 tCO₂e
202074+2346.0 kBtu/ft²1,322 tCO₂e
201951+464.7 kBtu/ft²1,860 tCO₂e
201847-1769.2 kBtu/ft²2,050 tCO₂e
201764+265.9 kBtu/ft²2,148 tCO₂e
201662+768.3 kBtu/ft²2,302 tCO₂e
201555+1074.7 kBtu/ft²2,939 tCO₂e
20144582.5 kBtu/ft²3,246 tCO₂e

Compliance context

Clean and Affordable Energy Act / BEPS

DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.

Program details →

Ownership

1620 K LLC

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Location

Address
1666 K St NW
State
District of Columbia
ZIP
20006
Coordinates
38.90206, -77.03816

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Washington, DC · biggest emitters

Frequently asked questions

What is 1666 K St NW's energy grade?

1666 K St NW scores 51 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 1666 K St NW use?

Its 2024 site energy-use intensity was 54.6 kBtu/ft² (153.0 kBtu/ft² source) across 309,643 sq ft, including 4,958,805 kWh of electricity and 0 therms of natural gas.

What are 1666 K St NW's carbon emissions?

1666 K St NW reported 1,485 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024. DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.

Dataset updated . Source: Building Energy Benchmarking disclosure, record dc:PM1423975:2024.