Riverdale Nursing Home - 641 W 230th St.
Senior Living Community in New York City, NY · 641 West 230th Street / 641 Fairfield Avenue · 10463
At a glance
Riverdale Nursing Home - 641 W 230th St. is a 42,735-square-foot senior living community building at 641 West 230th Street / 641 Fairfield Avenue in New York City, New York, built in 1957. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 62.7 kBtu/ft² and 278 tCO₂e of greenhouse-gas emissions. That score is higher than 94% of the 229 scored senior living community buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 62.7 kBtu/ft² |
| Source EUI | 155.2 kBtu/ft² |
| GHG emissions | 278 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 639,670 kWh |
| Natural gas | 4,968 therms |
| Water use | 7,700 kgal |
| Gross floor area | 42,735 sq ft |
| Source record | nyc:12546691:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +1 | 62.7 kBtu/ft² | 278 tCO₂e |
| 2023 | 99 | +2 | 78.9 kBtu/ft² | 276 tCO₂e |
| 2022 | 97 | 86.3 kBtu/ft² | 244 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
- 641 West 230th Street / 641 Fairfield Avenue
- City
- New York City
- State
- New York
- ZIP
- 10463
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does Riverdale Nursing Home - 641 W 230th St. compare with other senior living community buildings in New York City?
The latest disclosures cover 296 senior living community buildings in New York City, out of 48,310 buildings citywide. Riverdale Nursing Home - 641 W 230th St.'s ENERGY STAR score of 100 compares with an average of 57 across the 229 that report a score; it scores higher than 94% of them. Its site EUI of 62.7 kBtu/ft² is about 44% below the average of 112.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.5 kgCO₂e/ft² is about 24% below the group average of 8.5 kgCO₂e/ft².
At 42,735 sq ft, it is about 61% below the average floor area of 108,590 sq ft for those buildings. It was built in 1957, 17 years earlier than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 1,181 senior living community buildings average an ENERGY STAR score of 71 and a site EUI of 73.6 kBtu/ft².
How has Riverdale Nursing Home - 641 W 230th St.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Riverdale Nursing Home - 641 W 230th St., covering report years 2022–2024. Its ENERGY STAR score went from 97 in 2022 to 100 in 2024 (+3 points). Site EUI moved from 86.3 kBtu/ft² (2022) to 62.7 kBtu/ft² (2024), a 27% decrease. Reported emissions went from 244 tCO₂e to 278 tCO₂e over the same span (up 14%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Riverdale Nursing Home - 641 W 230th St.'s 62.7 kBtu/ft² across 42,735 sq ft works out to about 2.7 billion Btu (785 MWh-equivalent) in 2024. Its source EUI of 155.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 639,670 kWh of electricity, 4,968 therms of natural gas and 7,700 thousand gallons of water for the year.
Which law requires Riverdale Nursing Home - 641 W 230th St. to report its energy use?
Riverdale Nursing Home - 641 W 230th St. 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:12546691:2024). 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 senior living community buildings in New York City
- 70 Father Capodanno Boulevard· 42,694 sq ft · score 35 (D)
- 1350 Route 112· 42,000 sq ft · score 93 (A)
- 1312 Caton Avenue· 41,176 sq ft · score 96 (A)
- 1312 Caton Avenue· 41,176 sq ft · score 96 (A)
- Belle Harbor Manor· 41,126 sq ft · score 48 (D)
- 3001 West 37th Street· 39,983 sq ft · EUI 40.8 kBtu/ft²
- Senior Living Community buildings in New York City· 296 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 Riverdale Nursing Home - 641 W 230th St.'s energy grade?
Riverdale Nursing Home - 641 W 230th St. scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Riverdale Nursing Home - 641 W 230th St. use?
Its 2024 site energy-use intensity was 62.7 kBtu/ft² (155.2 kBtu/ft² source) across 42,735 sq ft, including 639,670 kWh of electricity and 4,968 therms of natural gas.
What are Riverdale Nursing Home - 641 W 230th St.'s carbon emissions?
Riverdale Nursing Home - 641 W 230th St. reported 278 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2024.
Where is Riverdale Nursing Home - 641 W 230th St.?
Riverdale Nursing Home - 641 W 230th St. is at 641 West 230th Street / 641 Fairfield Avenue, in New York City, New York 10463.
How big is Riverdale Nursing Home - 641 W 230th St. and when was it built?
Riverdale Nursing Home - 641 W 230th St. has 42,735 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1957 as its year built. It is classed as senior living community.
Is Riverdale Nursing Home - 641 W 230th St. 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, “Riverdale Nursing Home - 641 W 230th St., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/riverdale-nursing-home-641-w-230th-st-06574679 (data as of October 2, 2026).