BuildingCensus
C

One South Broad

Office in Philadelphia, PA · 1 South Broad Street · 19107

ENERGY STAR score
56
band C · 2021
Site EUI
58.5
kBtu/ft²
GHG emissions
2,636
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
526,472
sq ft
Year built
1932
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Phila. Code §9-3402 / Building Energy Performance Program · reporting year 2021

Benchmarking record

FieldValue
ENERGY STAR score56 (band C)
Site EUI58.5 kBtu/ft²
Source EUI138.1 kBtu/ft²
GHG emissions2,636 tCO₂e
GHG intensity—
Electricity6,542,642 kWh
Water use7,242 kgal
Gross floor area526,472 sq ft
Source recordphiladelphia:3820092:2021

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2021latest56+1258.5 kBtu/ft²2,636 tCO₂e
202044-2161.1 kBtu/ft²2,771 tCO₂e
20196572.0 kBtu/ft²3,349 tCO₂e

Compliance context

Phila. Code §9-3402 / Building Energy Performance Program

Philadelphia requires commercial and multifamily buildings of 50,000+ sq ft to benchmark annually; its Building Energy Performance Program additionally requires non-residential buildings of 50,000+ sq ft to complete a tune-up or certify as high-performance every five years, with fines starting at $2,000 for non-compliance.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
1 South Broad Street
State
Pennsylvania
ZIP
19107
Coordinates
39.95118, -75.16350

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Philadelphia · biggest emitters

Frequently asked questions

What is One South Broad's energy grade?

One South Broad scores 56 out of 100 on ENERGY STAR — band C (Below median (55–69)) — in its 2021 Philadelphia disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does One South Broad use?

Its 2021 site energy-use intensity was 58.5 kBtu/ft² (138.1 kBtu/ft² source) across 526,472 sq ft, including 6,542,642 kWh of electricity.

What are One South Broad's carbon emissions?

One South Broad reported 2,636 tCO₂e of greenhouse-gas emissions for 2021. Philadelphia requires commercial and multifamily buildings of 50,000+ sq ft to benchmark annually; its Building Energy Performance Program additionally requires non-residential buildings of 50,000+ sq ft to complete a tune-up or certify as high-performance every five years, with fines starting at $2,000 for non-compliance.

Working with Philadelphia 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 philadelphia:3820092:2021.