RY - 250 South End Avenue
Multifamily Housing in New York City, NY · 250 South End Avenue · 10280
At a glance
RY - 250 South End Avenue is a 117,045-square-foot multifamily housing building in New York City, New York, built in 1987. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 56.5 kBtu/ft² and 514 tCO₂e of greenhouse-gas emissions. That score is higher than 44% 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 | 64 (band C) |
| Site EUI | 56.5 kBtu/ft² |
| Source EUI | 98.5 kBtu/ft² |
| GHG emissions | 514 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 767,858 kWh |
| Natural gas | 39,953 therms |
| Water use | 4,993 kgal |
| Gross floor area | 117,045 sq ft |
| Source record | nyc:2679903:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | -27 | 56.5 kBtu/ft² | 514 tCO₂e |
| 2023 | 91 | +45 | 35.0 kBtu/ft² | 356 tCO₂e |
| 2022 | 46 | 76.0 kBtu/ft² | 559 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
- 250 South End Avenue
- City
- New York City
- State
- New York
- ZIP
- 10280
- Coordinates
- 40.70971, -74.01656
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does RY - 250 South End Avenue 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. RY - 250 South End Avenue's ENERGY STAR score of 64 compares with an average of 63 across the 22,829 that report a score; it scores higher than 44% of them and lower than 55%. Its site EUI of 56.5 kBtu/ft² is about 25% 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 4.4 kgCO₂e/ft² is about 16% below the group average of 5.2 kgCO₂e/ft².
At 117,045 sq ft, it is about 16% above the average floor area of 100,951 sq ft for those buildings. It was built in 1987, 35 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 RY - 250 South End Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for RY - 250 South End Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 46 in 2022 to 64 in 2024 (+18 points); its best year on file was 2023, at 91. Site EUI moved from 76.0 kBtu/ft² (2022) to 56.5 kBtu/ft² (2024), a 26% decrease. Reported emissions went from 559 tCO₂e to 514 tCO₂e over the same span (down 8%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. RY - 250 South End Avenue's 56.5 kBtu/ft² across 117,045 sq ft works out to about 6.6 billion Btu (1,938 MWh-equivalent) in 2024. Its source EUI of 98.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 767,858 kWh of electricity, 39,953 therms of natural gas and 4,993 thousand gallons of water for the year.
Which law requires RY - 250 South End Avenue to report its energy use?
RY - 250 South End Avenue 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:2679903:2024). 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
- Geffner House· 117,008 sq ft · score 94 (A)
- Amsterdam Owners Corp.· 117,006 sq ft · score 41 (D)
- Caprice: 320 E 58th Street· 117,005 sq ft · score 70 (B)
- AKAM - 3115 Tibbett Avenue - CHILD· 117,000 sq ft · score 1 (D)
- 1270 Gerard Avenue· 117,000 sq ft · score 55 (C)
- Morris· 117,000 sq ft · score 83 (B)
- 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 RY - 250 South End Avenue's energy grade?
RY - 250 South End Avenue scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does RY - 250 South End Avenue use?
Its 2024 site energy-use intensity was 56.5 kBtu/ft² (98.5 kBtu/ft² source) across 117,045 sq ft, including 767,858 kWh of electricity and 39,953 therms of natural gas.
What are RY - 250 South End Avenue's carbon emissions?
RY - 250 South End Avenue reported 514 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2024.
Where is RY - 250 South End Avenue?
RY - 250 South End Avenue is in New York City, New York 10280. Its coordinates are 40.70971, -74.01656 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is RY - 250 South End Avenue and when was it built?
RY - 250 South End Avenue has 117,045 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1987 as its year built. It is classed as multifamily housing.
Is RY - 250 South End Avenue 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, “RY - 250 South End Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ry-250-south-end-avenue-1b450b40 (data as of October 2, 2026).