Broadway Greystone
Multifamily Housing in New York City, NY · 212 W 91 St · 10024
At a glance
Broadway Greystone is a 214,011-square-foot multifamily housing building at 212 W 91 St in New York City, New York, built in 1923. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 14 out of 100 (grade D), a site energy-use intensity of 142.4 kBtu/ft² and 2,091 tCO₂e of greenhouse-gas emissions. That score is higher than 9% 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 | 14 (band D) |
| Site EUI | 142.4 kBtu/ft² |
| Source EUI | 211.8 kBtu/ft² |
| GHG emissions | 2,091 tCO₂e |
| GHG intensity | 9.8 kgCO₂e/ft² |
| Electricity | 2,230,500 kWh |
| Natural gas | 228,727 therms |
| Water use | 39,032 kgal |
| Gross floor area | 214,011 sq ft |
| Source record | nyc:6272350:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 14 | +2 | 142.4 kBtu/ft² | 2,091 tCO₂e |
| 2023 | 12 | +5 | 143.8 kBtu/ft² | 2,069 tCO₂e |
| 2022 | 7 | 161.7 kBtu/ft² | 2,107 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
- 212 W 91 St
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.79119, -73.97346
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Broadway Greystone 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. Broadway Greystone's ENERGY STAR score of 14 compares with an average of 63 across the 22,829 that report a score; it scores higher than 9% of them and lower than 91%. Its site EUI of 142.4 kBtu/ft² is about twice the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 9.8 kgCO₂e/ft² is about 88% above the group average of 5.2 kgCO₂e/ft².
At 214,011 sq ft, it is about twice the average floor area of 100,951 sq ft for those buildings. It was built in 1923, 29 years earlier 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 Broadway Greystone's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Broadway Greystone, covering report years 2022–2024. Its ENERGY STAR score went from 7 in 2022 to 14 in 2024 (+7 points). Site EUI moved from 161.7 kBtu/ft² (2022) to 142.4 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 2,107 tCO₂e to 2,091 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 14 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 14 means the building performs better than about 14% of its national peers. BuildingCensus bands the score into report-card grades; 14 falls in band D — lowest band (1–54). It sits 61 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. Broadway Greystone's 142.4 kBtu/ft² across 214,011 sq ft works out to about 30.5 billion Btu (8,931 MWh-equivalent) in 2024. Its source EUI of 211.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,230,500 kWh of electricity, 228,727 therms of natural gas and 39,032 thousand gallons of water for the year.
Which law requires Broadway Greystone to report its energy use?
Broadway Greystone 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:6272350:2024). 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
- Ardowork: 2685 University Ave· 214,000 sq ft · EUI 68.7 kBtu/ft²
- The Seville· 213,936 sq ft · score 32 (D)
- 4705 Henry Hudson Boulevard· 213,921 sq ft · score 77 (B)
- Windsor Apartments Inc I· 213,921 sq ft · score 50 (D)
- PARK LANE SOUTH OWNERS INC.· 213,654 sq ft
- 250 E 65th Street - 30015· 213,618 sq ft · score 2 (D)
- 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 Broadway Greystone's energy grade?
Broadway Greystone scores 14 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 Broadway Greystone use?
Its 2024 site energy-use intensity was 142.4 kBtu/ft² (211.8 kBtu/ft² source) across 214,011 sq ft, including 2,230,500 kWh of electricity and 228,727 therms of natural gas.
What are Broadway Greystone's carbon emissions?
Broadway Greystone reported 2,091 tCO₂e of greenhouse-gas emissions (9.8 kgCO₂e/ft²) for 2024.
Where is Broadway Greystone?
Broadway Greystone is at 212 W 91 St, in New York City, New York 10024. Its coordinates are 40.79119, -73.97346 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Broadway Greystone and when was it built?
Broadway Greystone has 214,011 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1923 as its year built. It is classed as multifamily housing.
Is Broadway Greystone 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, “Broadway Greystone, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/broadway-greystone-78003284 (data as of October 2, 2026).