The Philadelphia Design Building
Office in Philadelphia, PA · 2300-20 CHESTNUT ST · 19103
At a glance
The Philadelphia Design Building is a 98,597-square-foot office building at 2300-20 CHESTNUT ST in Philadelphia, Pennsylvania, built in 1910. In its 2022 Philadelphia benchmarking disclosure it reported an ENERGY STAR score of 74 out of 100 (grade B), a site energy-use intensity of 112.8 kBtu/ft² and 953 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 180 scored office buildings in Philadelphia.
Phila. Code §9-3402 / Building Energy Performance Program · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 74 (band B) |
| Site EUI | 112.8 kBtu/ft² |
| Source EUI | 307.3 kBtu/ft² |
| GHG emissions | 953 tCO₂e |
| GHG intensity | — |
| Electricity | 3,117,537 kWh |
| Natural gas | 4,851 therms |
| Water use | 386 kgal |
| Gross floor area | 98,597 sq ft |
| Source record | philadelphia:3638043:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 74 | -12 | 112.8 kBtu/ft² | 953 tCO₂e |
| 2021 | 86 | -3 | 104.6 kBtu/ft² | 936 tCO₂e |
| 2020 | 89 | +37 | 101.9 kBtu/ft² | 939 tCO₂e |
| 2019 | 52 | 127.0 kBtu/ft² | 1,246 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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 2300-20 CHESTNUT ST
- City
- Philadelphia
- State
- Pennsylvania
- ZIP
- 19103
- Coordinates
- 39.95265, -75.17824
Within ~1 km
Nearby benchmarked buildings
- pen03067 1800 Arch Streetscore 60
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- Cira Square Parentscore 94
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- Cira Squarescore 74
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- 1835 Market Streetscore 54
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- Edgewaterscore 95
Multifamily Housing · 396,792 sq ft
- PA0073 - MITSOscore —
Other · 369,737 sq ft
See also: most efficient in Philadelphia · biggest emitters
How does The Philadelphia Design Building compare with other office buildings in Philadelphia?
The latest disclosures cover 212 office buildings in Philadelphia, out of 2,379 buildings citywide. The Philadelphia Design Building's ENERGY STAR score of 74 compares with an average of 64 across the 180 that report a score; it scores higher than 56% of them and lower than 41%. Its site EUI of 112.8 kBtu/ft² is about 44% above the average of 78.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 98,597 sq ft, it is about 66% below the average floor area of 292,223 sq ft for those buildings. It was built in 1910, 47 years earlier than the group's average year built (1957). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has The Philadelphia Design Building's energy performance changed over time?
BuildingCensus holds 4 Philadelphia disclosures for The Philadelphia Design Building, covering report years 2019–2022. Its ENERGY STAR score went from 52 in 2019 to 74 in 2022 (+22 points); its best year on file was 2020, at 89. Site EUI moved from 127.0 kBtu/ft² (2019) to 112.8 kBtu/ft² (2022), a 11% decrease. Reported emissions went from 1,246 tCO₂e to 953 tCO₂e over the same span (down 24%).
What does an ENERGY STAR score of 74 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 74 means the building performs better than about 74% of its national peers. BuildingCensus bands the score into report-card grades; 74 falls in band B — above median (70–84). It sits 1 points below 75, the threshold for ENERGY STAR certification. In Philadelphia, 35% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. The Philadelphia Design Building's 112.8 kBtu/ft² across 98,597 sq ft works out to about 11.1 billion Btu (3,259 MWh-equivalent) in 2022. Its source EUI of 307.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,117,537 kWh of electricity, 4,851 therms of natural gas and 386 thousand gallons of water for the year.
Which law requires The Philadelphia Design Building to report its energy use?
The Philadelphia Design Building reports under Phila. Code §9-3402 / Building Energy Performance Program, the legal basis of Philadelphia's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record philadelphia:3638043:2022). 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.
More office buildings in Philadelphia
- Medical Tower Building· 95,000 sq ft · score 68 (C)
- 3000 Market Street· 90,999 sq ft · EUI 34.0 kBtu/ft²
- PeiGenesis· 90,000 sq ft · EUI 99.7 kBtu/ft²
- 1 Crescent Drive· 82,240 sq ft · score 82 (B)
- Steamfitter Union 420· 80,000 sq ft · score 68 (C)
- 1701 W Lehigh· 76,500 sq ft · EUI 24.8 kBtu/ft²
- Office buildings in Philadelphia· 212 benchmarked
- All Philadelphia benchmarked buildings· Phila. Code §9-3402 / Building Energy Performance Program
- Most efficient large buildings in Philadelphia
- Least efficient large buildings in Philadelphia
- Biggest emitters in Philadelphia
Frequently asked questions
What is The Philadelphia Design Building's energy grade?
The Philadelphia Design Building scores 74 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2022 Philadelphia disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Philadelphia Design Building use?
Its 2022 site energy-use intensity was 112.8 kBtu/ft² (307.3 kBtu/ft² source) across 98,597 sq ft, including 3,117,537 kWh of electricity and 4,851 therms of natural gas.
What are The Philadelphia Design Building's carbon emissions?
The Philadelphia Design Building reported 953 tCO₂e of greenhouse-gas emissions for 2022.
Where is The Philadelphia Design Building?
The Philadelphia Design Building is at 2300-20 CHESTNUT ST, in Philadelphia, Pennsylvania 19103. Its coordinates are 39.95265, -75.17824 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Philadelphia Design Building and when was it built?
The Philadelphia Design Building has 98,597 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1910 as its year built. It is classed as office.
Is The Philadelphia Design Building covered by Phila. Code §9-3402 / Building Energy Performance Program?
Yes — it appears in the 2022 Building Energy Benchmarking disclosure, which lists the buildings reporting under Phila. Code §9-3402 / Building Energy Performance Program.
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About this data
Source: Building Energy Benchmarking (Phila. Code §9-3402 / Building Energy Performance Program), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “The Philadelphia Design Building, Philadelphia, Pennsylvania — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/philadelphia/the-philadelphia-design-building-8f33c597 (data as of July 9, 2026).