Carnegie Management: 342 Eldert St
Multifamily Housing in New York City, NY · 342 Eldert St · 11237
At a glance
Carnegie Management: 342 Eldert St is a 71,335-square-foot multifamily housing building in New York City, New York, built in 2007. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 45.1 kBtu/ft² and 304 tCO₂e of greenhouse-gas emissions. That score is higher than 39% 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 | 58 (band C) |
| Site EUI | 45.1 kBtu/ft² |
| Source EUI | 100.2 kBtu/ft² |
| GHG emissions | 304 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 631,898 kWh |
| Natural gas | 10,581 therms |
| Water use | 2,894 kgal |
| Gross floor area | 71,335 sq ft |
| Source record | nyc:4402989:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 58 | -6 | 45.1 kBtu/ft² | 304 tCO₂e |
| 2023 | 64 | +7 | 42.8 kBtu/ft² | 275 tCO₂e |
| 2022 | 57 | 48.0 kBtu/ft² | 251 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
- 342 Eldert St
- City
- New York City
- State
- New York
- ZIP
- 11237
- Coordinates
- 40.69357, -73.90632
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Carnegie Management: 342 Eldert St 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. Carnegie Management: 342 Eldert St's ENERGY STAR score of 58 compares with an average of 63 across the 22,829 that report a score; it scores higher than 39% of them and lower than 60%. Its site EUI of 45.1 kBtu/ft² is about 40% 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 4.3 kgCO₂e/ft² is about 18% below the group average of 5.2 kgCO₂e/ft².
At 71,335 sq ft, it is about 29% below the average floor area of 100,951 sq ft for those buildings. It was built in 2007, 55 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 Carnegie Management: 342 Eldert St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Carnegie Management: 342 Eldert St, covering report years 2022–2024. Its ENERGY STAR score went from 57 in 2022 to 58 in 2024 (+1 points); its best year on file was 2023, at 64. Site EUI moved from 48.0 kBtu/ft² (2022) to 45.1 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 251 tCO₂e to 304 tCO₂e over the same span (up 21%).
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. Carnegie Management: 342 Eldert St's 45.1 kBtu/ft² across 71,335 sq ft works out to about 3.2 billion Btu (943 MWh-equivalent) in 2024. Its source EUI of 100.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 631,898 kWh of electricity, 10,581 therms of natural gas and 2,894 thousand gallons of water for the year.
Which law requires Carnegie Management: 342 Eldert St to report its energy use?
Carnegie Management: 342 Eldert 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:4402989:2024). 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.
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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is Carnegie Management: 342 Eldert St's energy grade?
Carnegie Management: 342 Eldert St scores 58 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 Carnegie Management: 342 Eldert St use?
Its 2024 site energy-use intensity was 45.1 kBtu/ft² (100.2 kBtu/ft² source) across 71,335 sq ft, including 631,898 kWh of electricity and 10,581 therms of natural gas.
What are Carnegie Management: 342 Eldert St's carbon emissions?
Carnegie Management: 342 Eldert St reported 304 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is Carnegie Management: 342 Eldert St?
Carnegie Management: 342 Eldert St is in New York City, New York 11237. Its coordinates are 40.69357, -73.90632 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Carnegie Management: 342 Eldert St and when was it built?
Carnegie Management: 342 Eldert St has 71,335 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2007 as its year built. It is classed as multifamily housing.
Is Carnegie Management: 342 Eldert 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, “Carnegie Management: 342 Eldert St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/carnegie-management-342-eldert-st-f33059de (data as of October 2, 2026).