ELGAN REALTY CORP.
Multifamily Housing in New York City, NY · 25 Nagle Ave · 10040
At a glance
ELGAN REALTY CORP. is a 49,714-square-foot multifamily housing building at 25 Nagle Ave in New York City, New York, built in 1941. 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 19.2 kBtu/ft² and 98 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 19.2 kBtu/ft² |
| Source EUI | 47.0 kBtu/ft² |
| GHG emissions | 98 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 223,223 kWh |
| Natural gas | 1,952 therms |
| Water use | 5,210 kgal |
| Gross floor area | 49,714 sq ft |
| Source record | nyc:6653076:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +2 | 19.2 kBtu/ft² | 98 tCO₂e |
| 2023 | 98 | +57 | 51.5 kBtu/ft² | 176 tCO₂e |
| 2022 | 41 | 121.6 kBtu/ft² | 344 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
- 25 Nagle Ave
- City
- New York City
- State
- New York
- ZIP
- 10040
- Coordinates
- 40.85953, -73.93036
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does ELGAN REALTY CORP. 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. ELGAN REALTY CORP.'s ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 19.2 kBtu/ft² is about 74% 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 2.0 kgCO₂e/ft² is about 62% below the group average of 5.2 kgCO₂e/ft².
At 49,714 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1941, 11 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 ELGAN REALTY CORP.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for ELGAN REALTY CORP., covering report years 2022–2024. Its ENERGY STAR score went from 41 in 2022 to 100 in 2024 (+59 points). Site EUI moved from 121.6 kBtu/ft² (2022) to 19.2 kBtu/ft² (2024), a 84% decrease. Reported emissions went from 344 tCO₂e to 98 tCO₂e over the same span (down 72%).
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. ELGAN REALTY CORP.'s 19.2 kBtu/ft² across 49,714 sq ft works out to about 1 billion Btu (280 MWh-equivalent) in 2024. Its source EUI of 47.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 223,223 kWh of electricity, 1,952 therms of natural gas and 5,210 thousand gallons of water for the year.
Which law requires ELGAN REALTY CORP. to report its energy use?
ELGAN REALTY CORP. 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:6653076:2024). 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
- Chestnut - 295 Fort Washington Avenue· 49,710 sq ft · score 47 (D)
- 3510 Decatur Avenue· 49,710 sq ft · score 100 (A)
- BORINQUEN PLAZA I - Bldg 5· 49,700 sq ft · EUI 26.6 kBtu/ft²
- 3444 Knox Place· 49,700 sq ft · score 46 (D)
- 450 Village Company: 450 6th Avenue· 49,690 sq ft · score 66 (C)
- Property Link MGMT:165 EAST 89 STREET· 49,680 sq ft · score 20 (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 ELGAN REALTY CORP.'s energy grade?
ELGAN REALTY CORP. 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 ELGAN REALTY CORP. use?
Its 2024 site energy-use intensity was 19.2 kBtu/ft² (47.0 kBtu/ft² source) across 49,714 sq ft, including 223,223 kWh of electricity and 1,952 therms of natural gas.
What are ELGAN REALTY CORP.'s carbon emissions?
ELGAN REALTY CORP. reported 98 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2024.
Where is ELGAN REALTY CORP.?
ELGAN REALTY CORP. is at 25 Nagle Ave, in New York City, New York 10040. Its coordinates are 40.85953, -73.93036 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is ELGAN REALTY CORP. and when was it built?
ELGAN REALTY CORP. has 49,714 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1941 as its year built. It is classed as multifamily housing.
Is ELGAN REALTY CORP. 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, “ELGAN REALTY CORP., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/elgan-realty-corp-cae36ed6 (data as of October 2, 2026).