275 Nelson Apartments LLC
Multifamily Housing in New York City, NY · 275 South Street · 10002
At a glance
275 Nelson Apartments LLC is a 262,875-square-foot multifamily housing building at 275 South Street in New York City, New York, built in 1978. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 98 out of 100 (grade A), a site energy-use intensity of 53.7 kBtu/ft² and 880 tCO₂e of greenhouse-gas emissions. That score is higher than 87% 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 | 98 (band A) |
| Site EUI | 53.7 kBtu/ft² |
| Source EUI | 70.3 kBtu/ft² |
| GHG emissions | 880 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 612,442 kWh |
| Natural gas | 120,359 therms |
| Water use | 10,819 kgal |
| Gross floor area | 262,875 sq ft |
| Source record | nyc:5888070:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 98 | +19 | 53.7 kBtu/ft² | 880 tCO₂e |
| 2023 | 79 | -10 | 67.0 kBtu/ft² | 1,183 tCO₂e |
| 2022 | 89 | 60.2 kBtu/ft² | 989 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
- 275 South Street
- City
- New York City
- State
- New York
- ZIP
- 10002
- Coordinates
- 40.71036, -73.98761
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 275 Nelson Apartments LLC 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. 275 Nelson Apartments LLC's ENERGY STAR score of 98 compares with an average of 63 across the 22,829 that report a score; it scores higher than 87% of them and lower than 12%. Its site EUI of 53.7 kBtu/ft² is about 28% 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 3.4 kgCO₂e/ft² is about 36% below the group average of 5.2 kgCO₂e/ft².
At 262,875 sq ft, it is about 160% above the average floor area of 100,951 sq ft for those buildings. It was built in 1978, 26 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 275 Nelson Apartments LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 275 Nelson Apartments LLC, covering report years 2022–2024. Its ENERGY STAR score went from 89 in 2022 to 98 in 2024 (+9 points). Site EUI moved from 60.2 kBtu/ft² (2022) to 53.7 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 989 tCO₂e to 880 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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. 275 Nelson Apartments LLC's 53.7 kBtu/ft² across 262,875 sq ft works out to about 14.1 billion Btu (4,137 MWh-equivalent) in 2024. Its source EUI of 70.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 612,442 kWh of electricity, 120,359 therms of natural gas and 10,819 thousand gallons of water for the year.
Which law requires 275 Nelson Apartments LLC to report its energy use?
275 Nelson Apartments LLC 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:5888070:2024). 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
- Halstead - 310 West 52nd Street· 262,508 sq ft · score 56 (C)
- (3310) - 310 West 52 Street Condominium (310 W. 52nd Street)· 262,508 sq ft · score 47 (D)
- 11 East 29th Street· 262,502 sq ft · score 40 (D)
- Maxwell: 172 East 79th St· 262,315 sq ft · EUI 67.7 kBtu/ft²
- Stellar - 185 St. Marks Place· 262,257 sq ft · score 1 (D)
- Stellar - 165 St. Marks Place· 262,257 sq ft
- 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 275 Nelson Apartments LLC's energy grade?
275 Nelson Apartments LLC scores 98 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 275 Nelson Apartments LLC use?
Its 2024 site energy-use intensity was 53.7 kBtu/ft² (70.3 kBtu/ft² source) across 262,875 sq ft, including 612,442 kWh of electricity and 120,359 therms of natural gas.
What are 275 Nelson Apartments LLC's carbon emissions?
275 Nelson Apartments LLC reported 880 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2024.
Where is 275 Nelson Apartments LLC?
275 Nelson Apartments LLC is at 275 South Street, in New York City, New York 10002. Its coordinates are 40.71036, -73.98761 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 275 Nelson Apartments LLC and when was it built?
275 Nelson Apartments LLC has 262,875 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1978 as its year built. It is classed as multifamily housing.
Is 275 Nelson Apartments LLC 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, “275 Nelson Apartments LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/275-nelson-apartments-llc-61188073 (data as of October 2, 2026).