1430 Walnut Street
Mixed Use Property in Philadelphia, PA · 19102
At a glance
1430 Walnut Street is a 46,900-square-foot mixed use property building in Philadelphia, Pennsylvania, built in 2015. In its 2024 Philadelphia benchmarking disclosure it reported a site energy-use intensity of 264.4 kBtu/ft² and 1,099 tCO₂e of greenhouse-gas emissions.
Phila. Code §9-3402 / Building Energy Performance Program · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 264.4 kBtu/ft² |
| Source EUI | 531.5 kBtu/ft² |
| GHG emissions | 1,099 tCO₂e |
| GHG intensity | — |
| Electricity | 2,612,139 kWh |
| Natural gas | 73,293 therms |
| Water use | 4,627 kgal |
| Gross floor area | 46,900 sq ft |
| Source record | philadelphia:6313492:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 264.4 kBtu/ft² | 1,099 tCO₂e | |
| 2023 | — | 265.3 kBtu/ft² | 1,182 tCO₂e | |
| 2021 | — | 262.6 kBtu/ft² | 1,209 tCO₂e | |
| 2020 | — | 248.9 kBtu/ft² | 1,175 tCO₂e | |
| 2019 | — | 302.5 kBtu/ft² | 1,498 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
- 1430 Walnut Street
- City
- Philadelphia
- State
- Pennsylvania
- ZIP
- 19102
- Coordinates
- 39.94921, -75.16579
Within ~1 km
Nearby benchmarked buildings
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- Two Liberty Placescore 73
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- 33703-PHLDT-Philadelphiascore 55
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- Two Liberty Placescore 88
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- 1500 Locustscore 93
Multifamily Housing · 887,048 sq ft
See also: most efficient in Philadelphia · biggest emitters
How does 1430 Walnut Street compare with other mixed use property buildings in Philadelphia?
The latest disclosures cover 31 mixed use property buildings in Philadelphia, out of 2,379 buildings citywide. Its site EUI of 264.4 kBtu/ft² is about 226% above the average of 81.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 46,900 sq ft, it is about 62% below the average floor area of 124,923 sq ft for those buildings. It was built in 2015, 72 years later than the group's average year built (1943). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has 1430 Walnut Street's energy performance changed over time?
BuildingCensus holds 5 Philadelphia disclosures for 1430 Walnut Street, covering report years 2019, 2020, 2021, 2023, 2024. Site EUI moved from 302.5 kBtu/ft² (2019) to 264.4 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 1,498 tCO₂e to 1,099 tCO₂e over the same span (down 27%).
What does a site EUI of 264.4 kBtu/ft² mean?
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. 1430 Walnut Street's 264.4 kBtu/ft² across 46,900 sq ft works out to about 12.4 billion Btu (3,634 MWh-equivalent) in 2024. Its source EUI of 531.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,612,139 kWh of electricity, 73,293 therms of natural gas and 4,627 thousand gallons of water for the year.
Which law requires 1430 Walnut Street to report its energy use?
1430 Walnut Street 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 2024 disclosure (source record philadelphia:6313492:2024). 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 mixed use property buildings in Philadelphia
- 106 W Clearfield Street· 39,000 sq ft · EUI 18.3 kBtu/ft²
- 2100-06 chestnut· 30,000 sq ft · EUI 80.2 kBtu/ft²
- PECO G and Luzerne Service Center· 22,230 sq ft · EUI 102.0 kBtu/ft²
- PEI-Genesis· 20,000 sq ft · EUI 24.4 kBtu/ft²
- Mixed Use Property buildings in Philadelphia· 31 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 1430 Walnut Street's energy grade?
1430 Walnut Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 264.4 kBtu/ft².
How much energy does 1430 Walnut Street use?
Its 2024 site energy-use intensity was 264.4 kBtu/ft² (531.5 kBtu/ft² source) across 46,900 sq ft, including 2,612,139 kWh of electricity and 73,293 therms of natural gas.
What are 1430 Walnut Street's carbon emissions?
1430 Walnut Street reported 1,099 tCO₂e of greenhouse-gas emissions for 2024.
Where is 1430 Walnut Street?
1430 Walnut Street is in Philadelphia, Pennsylvania 19102. Its coordinates are 39.94921, -75.16579 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1430 Walnut Street and when was it built?
1430 Walnut Street has 46,900 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2015 as its year built. It is classed as mixed use property.
Is 1430 Walnut Street covered by Phila. Code §9-3402 / Building Energy Performance Program?
Yes — it appears in the 2024 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, “1430 Walnut Street, Philadelphia, Pennsylvania — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/philadelphia/1430-walnut-street-8bac7c64 (data as of July 9, 2026).