1425 51 STREET
Multifamily Housing in New York City, NY · 11219
At a glance
1425 51 STREET is a 50,400-square-foot multifamily housing building in New York City, New York, built in 1929. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 57.4 kBtu/ft² and 188 tCO₂e of greenhouse-gas emissions. That score is higher than 86% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 57.4 kBtu/ft² |
| Source EUI | 81.8 kBtu/ft² |
| GHG emissions | 188 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 181,871 kWh |
| Natural gas | 22,699 therms |
| Water use | 2,510 kgal |
| Gross floor area | 50,400 sq ft |
| Source record | nyc:26017790:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 97 | ±0 | 57.4 kBtu/ft² | 188 tCO₂e |
| 2022 | 97 | 64.1 kBtu/ft² | 192 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1425 51 STREET
- City
- New York City
- State
- New York
- ZIP
- 11219
- Coordinates
- 40.63215, -73.99037
Within ~1 km
Nearby benchmarked buildings
- Maimonides - Main Campusscore 60
Hospital (General Medical & Surgical) · 895,621 sq ft
- Maimonides - 1024 48th Streetscore 100
Hospital (General Medical & Surgical) · 530,470 sq ft
- 4723 10th Avenue - datascore —
Parking · 226,000 sq ft
- BYBP & Sefardscore 71
K-12 School · 159,428 sq ft
- 6201 15th Avenuescore 99
Office · 147,530 sq ft
Financial Office · 147,520 sq ft
See also: most efficient in New York City · biggest emitters
How does 1425 51 STREET 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. 1425 51 STREET's ENERGY STAR score of 97 compares with an average of 63 across the 22,829 that report a score; it scores higher than 86% of them and lower than 13%. Its site EUI of 57.4 kBtu/ft² is about 23% 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 3.7 kgCO₂e/ft² is about 29% below the group average of 5.2 kgCO₂e/ft².
At 50,400 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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 1425 51 STREET's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 1425 51 STREET, covering report years 2022–2023. Its ENERGY STAR score was 97 in both 2022 and 2023. Site EUI moved from 64.1 kBtu/ft² (2022) to 57.4 kBtu/ft² (2023), a 10% decrease. Reported emissions went from 192 tCO₂e to 188 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. 1425 51 STREET's 57.4 kBtu/ft² across 50,400 sq ft works out to about 2.9 billion Btu (848 MWh-equivalent) in 2023. Its source EUI of 81.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 181,871 kWh of electricity, 22,699 therms of natural gas and 2,510 thousand gallons of water for the year.
Which law requires 1425 51 STREET to report its energy use?
1425 51 STREET 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 2023 disclosure (source record nyc:26017790:2023). 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
- DEPM 2376 - 988 Fifth Avenue· 50,396 sq ft · EUI 86.9 kBtu/ft²
- 31 Operating Corp. (31 West 12th Street)· 50,388 sq ft · score 100 (A)
- 575 RIVERHOUSE CORP.· 50,388 sq ft · score 95 (A)
- 101 West 115th Street· 50,365 sq ft · score 22 (D)
- 671 Manida Street· 50,361 sq ft · score 54 (D)
- 511-519 Lincoln Place (Parent Property)· 50,360 sq ft · score 23 (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 1425 51 STREET's energy grade?
1425 51 STREET scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1425 51 STREET use?
Its 2023 site energy-use intensity was 57.4 kBtu/ft² (81.8 kBtu/ft² source) across 50,400 sq ft, including 181,871 kWh of electricity and 22,699 therms of natural gas.
What are 1425 51 STREET's carbon emissions?
1425 51 STREET reported 188 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2023.
Where is 1425 51 STREET?
1425 51 STREET is in New York City, New York 11219. Its coordinates are 40.63215, -73.99037 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1425 51 STREET and when was it built?
1425 51 STREET has 50,400 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is 1425 51 STREET covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “1425 51 STREET, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1425-51-street-c769c0d1 (data as of October 2, 2026).