RFC 31 STREET I LLC THE ROWAN CONDOMINIUM
Multifamily Housing in New York City, NY · 21-21 31ST STREET · 11105
At a glance
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM is a 123,274-square-foot multifamily housing building at 21-21 31ST STREET in New York City, New York, built in 2019. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 5 out of 100 (grade D), a site energy-use intensity of 63.1 kBtu/ft² and 754 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 5 (band D) |
| Site EUI | 63.1 kBtu/ft² |
| Source EUI | 144.4 kBtu/ft² |
| GHG emissions | 754 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 1,614,517 kWh |
| Natural gas | 22,680 therms |
| Gross floor area | 123,274 sq ft |
| Source record | nyc:33947087:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 5 | -86 | 63.1 kBtu/ft² | 754 tCO₂e |
| 2023 | 91 | 31.6 kBtu/ft² | 333 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 21-21 31ST STREET
- City
- New York City
- State
- New York
- ZIP
- 11105
- Coordinates
- 40.77742, -73.90911
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does RFC 31 STREET I LLC THE ROWAN CONDOMINIUM compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. RFC 31 STREET I LLC THE ROWAN CONDOMINIUM's ENERGY STAR score of 5 compares with an average of 63 across the 22,829 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 63.1 kBtu/ft² is about 16% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.1 kgCO₂e/ft² is about 18% above the group average of 5.2 kgCO₂e/ft².
At 123,274 sq ft, it is about 22% above the average floor area of 100,951 sq ft for those buildings. It was built in 2019, 67 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has RFC 31 STREET I LLC THE ROWAN CONDOMINIUM's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for RFC 31 STREET I LLC THE ROWAN CONDOMINIUM, covering report years 2023–2024. Its ENERGY STAR score went from 91 in 2023 to 5 in 2024 (-86 points); its best year on file was 2023, at 91. Site EUI moved from 31.6 kBtu/ft² (2023) to 63.1 kBtu/ft² (2024), an 100% increase. Reported emissions went from 333 tCO₂e to 754 tCO₂e over the same span (up 127%).
What does an ENERGY STAR score of 5 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 5 means the building performs better than about 5% of its national peers. BuildingCensus bands the score into report-card grades; 5 falls in band D — lowest band (1–54). It sits 70 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% 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. RFC 31 STREET I LLC THE ROWAN CONDOMINIUM's 63.1 kBtu/ft² across 123,274 sq ft works out to about 7.8 billion Btu (2,280 MWh-equivalent) in 2024. Its source EUI of 144.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,614,517 kWh of electricity and 22,680 therms of natural gas for the year.
Which law requires RFC 31 STREET I LLC THE ROWAN CONDOMINIUM to report its energy use?
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:33947087:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More multifamily housing buildings in New York City
- 855 East 7th Street· 123,271 sq ft · score 92 (A)
- Allied - 162 West 56th St· 123,265 sq ft · score 41 (D)
- SUPERIOR: 1375 Ocean Ave· 123,264 sq ft · score 80 (B)
- 1020 Park Avenue· 123,237 sq ft · score 89 (A)
- Whitney Avenue Owners Corp.· 123,228 sq ft · score 67 (C)
- 44 West 77th St· 123,200 sq ft · score 98 (A)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is RFC 31 STREET I LLC THE ROWAN CONDOMINIUM's energy grade?
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM scores 5 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does RFC 31 STREET I LLC THE ROWAN CONDOMINIUM use?
Its 2024 site energy-use intensity was 63.1 kBtu/ft² (144.4 kBtu/ft² source) across 123,274 sq ft, including 1,614,517 kWh of electricity and 22,680 therms of natural gas.
What are RFC 31 STREET I LLC THE ROWAN CONDOMINIUM's carbon emissions?
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM reported 754 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2024.
Where is RFC 31 STREET I LLC THE ROWAN CONDOMINIUM?
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM is at 21-21 31ST STREET, in New York City, New York 11105. Its coordinates are 40.77742, -73.90911 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is RFC 31 STREET I LLC THE ROWAN CONDOMINIUM and when was it built?
RFC 31 STREET I LLC THE ROWAN CONDOMINIUM has 123,274 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2019 as its year built. It is classed as multifamily housing.
Is RFC 31 STREET I LLC THE ROWAN CONDOMINIUM covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “RFC 31 STREET I LLC THE ROWAN CONDOMINIUM, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/rfc-31-street-i-llc-the-rowan-condominium-78d47caa (data as of October 2, 2026).