BuildingCensus
A

Knowlton Condo

Multifamily Housing in Washington, DC, DC · 2227 20th St NW · 20009

ENERGY STAR score
97
band A · 2024
Site EUI
44.1
kBtu/ft²
GHG emissions
109
tCO₂e
GHG intensity
2.7
kgCO₂e/ft²
Floor area
39,785
sq ft
Year built
1923
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 score97 (band A)
Site EUI44.1 kBtu/ft²
Source EUI66.6 kBtu/ft²
GHG emissions109 tCO₂e
GHG intensity2.7 kgCO₂e/ft²
Electricity135,000 kWh
Natural gas12,938 therms
Water use1,205 kgal
Gross floor area39,785 sq ft
Source recorddc:PM19579503:2024

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2024latest97-144.1 kBtu/ft²109 tCO₂e
202398+142.9 kBtu/ft²106 tCO₂e
20229749.6 kBtu/ft²118 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

THE KNOWLTON CONDOMINIUM

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Location

Address
2227 20th St NW
State
District of Columbia
ZIP
20009
Coordinates
38.91900, -77.04585

Within ~1 km

Nearby benchmarked buildings

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

Frequently asked questions

What is Knowlton Condo's energy grade?

Knowlton Condo scores 97 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Knowlton Condo use?

Its 2024 site energy-use intensity was 44.1 kBtu/ft² (66.6 kBtu/ft² source) across 39,785 sq ft, including 135,000 kWh of electricity and 12,938 therms of natural gas.

What are Knowlton Condo's carbon emissions?

Knowlton Condo reported 109 tCO₂e of greenhouse-gas emissions (2.7 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:PM19579503:2024.