Dorchester Owners Association
Multifamily Housing in Philadelphia, PA · 226 W. Rittenhouse Square · 19103
At a glance
Dorchester Owners Association is a 609-square-foot multifamily housing building at 226 W. Rittenhouse Square in Philadelphia, Pennsylvania, built in 1963. In its 2024 Philadelphia benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 70.3 kBtu/ft² and 1,912 tCO₂e of greenhouse-gas emissions.
Some figures below are far outside what a multifamily housingof this size can use or emit — most likely a unit or entry error in the city's file. They are shown exactly as published and are left out of rankings and averages.
Phila. Code §9-3402 / Building Energy Performance Program · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 65 (band C) |
| Site EUI | 70.3 kBtu/ft² |
| Source EUI | 116.1 kBtu/ft² |
| GHG emissions | 1,912 tCO₂e |
| GHG intensity | — |
| Electricity | 3,095,525 kWh |
| Natural gas | 201,661 therms |
| Water use | 22,424 kgal |
| Gross floor area | 609 sq ft |
| Source record | philadelphia:5018126:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | +52 | 70.3 kBtu/ft² | 1,912 tCO₂e |
| 2023 | 13 | +5 | 94.3 kBtu/ft² | 2,608 tCO₂e |
| 2022 | 8 | +1 | 114.5 kBtu/ft² | 3,272 tCO₂e |
| 2021 | 7 | ±0 | 112.6 kBtu/ft² | 3,291 tCO₂e |
| 2020 | 7 | +3 | 112.5 kBtu/ft² | 3,328 tCO₂e |
| 2019 | 4 | 122.2 kBtu/ft² | 3,719 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 226 W. Rittenhouse Square
- City
- Philadelphia
- State
- Pennsylvania
- ZIP
- 19103
- Coordinates
- 39.94908, -75.17363
Within ~1 km
Nearby benchmarked buildings
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- 1500 Locustscore 93
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- APF - 1601 Market Streetscore 73
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See also: most efficient in Philadelphia · biggest emitters
How has Dorchester Owners Association's energy performance changed over time?
BuildingCensus holds 6 Philadelphia disclosures for Dorchester Owners Association, covering report years 2019–2024. Its ENERGY STAR score went from 4 in 2019 to 65 in 2024 (+61 points). Site EUI moved from 122.2 kBtu/ft² (2019) to 94.3 kBtu/ft² (2023), a 23% decrease. Reported emissions went from 3,719 tCO₂e to 2,608 tCO₂e over the same span (down 30%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 points below 75, the threshold for ENERGY STAR certification. In Philadelphia, 35% of scored buildings are at 75 or above.
Which law requires Dorchester Owners Association to report its energy use?
Dorchester Owners Association 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:5018126:2024). 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 multifamily housing buildings in Philadelphia
- Brewery Condominiums- Main House· 568 sq ft · score 99 (A)
- Rittenhouse Savoy Owners Assn· 401 sq ft · score 39 (D)
- Wanamaker House· 200 sq ft · score 34 (D)
- Multifamily Housing buildings in Philadelphia· 768 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 Dorchester Owners Association's energy grade?
Dorchester Owners Association scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Philadelphia disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Dorchester Owners Association use?
Its 2024 site energy-use intensity was 70.3 kBtu/ft² (116.1 kBtu/ft² source) across 609 sq ft, including 3,095,525 kWh of electricity and 201,661 therms of natural gas.
What are Dorchester Owners Association's carbon emissions?
Dorchester Owners Association reported 1,912 tCO₂e of greenhouse-gas emissions for 2024.
Where is Dorchester Owners Association?
Dorchester Owners Association is at 226 W. Rittenhouse Square, in Philadelphia, Pennsylvania 19103. Its coordinates are 39.94908, -75.17363 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Dorchester Owners Association and when was it built?
Dorchester Owners Association has 609 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1963 as its year built. It is classed as multifamily housing.
Is Dorchester Owners Association 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, “Dorchester Owners Association, Philadelphia, Pennsylvania — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/philadelphia/dorchester-owners-association-67d3e8d4 (data as of July 9, 2026).