Long Island City - 4121 27th St
Office in New York City, NY · 4121 27th St Long Island City NY · 11101
At a glance
Long Island City - 4121 27th St is a 251,812-square-foot office building at 4121 27th St Long Island City NY in New York City, New York, built in 2000. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 35 out of 100 (grade D), a site energy-use intensity of 130.4 kBtu/ft² and 3,309 tCO₂e of greenhouse-gas emissions. That score is higher than 10% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 35 (band D) |
| Site EUI | 130.4 kBtu/ft² |
| Source EUI | 332.5 kBtu/ft² |
| GHG emissions | 3,309 tCO₂e |
| GHG intensity | 13.1 kgCO₂e/ft² |
| Electricity | 8,248,962 kWh |
| Natural gas | 46,889 therms |
| Gross floor area | 251,812 sq ft |
| Source record | nyc:15856077:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 35 | +7 | 130.4 kBtu/ft² | 3,309 tCO₂e |
| 2022 | 28 | 149.0 kBtu/ft² | 2,969 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
- 4121 27th St Long Island City NY
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.75146, -73.93865
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Long Island City - 4121 27th St compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Long Island City - 4121 27th St's ENERGY STAR score of 35 compares with an average of 72 across the 2,519 that report a score; it scores higher than 10% of them and lower than 90%. Its site EUI of 130.4 kBtu/ft² is about twice the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 13.1 kgCO₂e/ft² is about 126% above the group average of 5.8 kgCO₂e/ft².
At 251,812 sq ft, it is about 23% above the average floor area of 205,440 sq ft for those buildings. It was built in 2000, 60 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Long Island City - 4121 27th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Long Island City - 4121 27th St, covering report years 2022–2023. Its ENERGY STAR score went from 28 in 2022 to 35 in 2023 (+7 points). Site EUI moved from 149.0 kBtu/ft² (2022) to 130.4 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 2,969 tCO₂e to 3,309 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 35 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 35 means the building performs better than about 35% of its national peers. BuildingCensus bands the score into report-card grades; 35 falls in band D — lowest band (1–54). It sits 40 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. Long Island City - 4121 27th St's 130.4 kBtu/ft² across 251,812 sq ft works out to about 32.8 billion Btu (9,623 MWh-equivalent) in 2023. Its source EUI of 332.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,248,962 kWh of electricity and 46,889 therms of natural gas for the year.
Which law requires Long Island City - 4121 27th St to report its energy use?
Long Island City - 4121 27th 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 2023 disclosure (source record nyc:15856077:2023). 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.
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- Office buildings in New York City· 3,384 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 Long Island City - 4121 27th St's energy grade?
Long Island City - 4121 27th St scores 35 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Long Island City - 4121 27th St use?
Its 2023 site energy-use intensity was 130.4 kBtu/ft² (332.5 kBtu/ft² source) across 251,812 sq ft, including 8,248,962 kWh of electricity and 46,889 therms of natural gas.
What are Long Island City - 4121 27th St's carbon emissions?
Long Island City - 4121 27th St reported 3,309 tCO₂e of greenhouse-gas emissions (13.1 kgCO₂e/ft²) for 2023.
Where is Long Island City - 4121 27th St?
Long Island City - 4121 27th St is at 4121 27th St Long Island City NY, in New York City, New York 11101. Its coordinates are 40.75146, -73.93865 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Long Island City - 4121 27th St and when was it built?
Long Island City - 4121 27th St has 251,812 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is Long Island City - 4121 27th St 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).
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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, “Long Island City - 4121 27th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/long-island-city-4121-27th-st-d5273168 (data as of October 2, 2026).