420 East 79
Multifamily Housing in New York City, NY · 420 East 79 Street · 10075
At a glance
420 East 79 is a 119,420-square-foot multifamily housing building at 420 East 79 Street in New York City, New York, built in 1959. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 62.5 kBtu/ft² and 507 tCO₂e of greenhouse-gas emissions. That score is higher than 63% 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 | 80 (band B) |
| Site EUI | 62.5 kBtu/ft² |
| Source EUI | 91.7 kBtu/ft² |
| GHG emissions | 507 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 521,073 kWh |
| Natural gas | 56,909 therms |
| Water use | 4,704 kgal |
| Gross floor area | 119,420 sq ft |
| Source record | nyc:2649523:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | +4 | 62.5 kBtu/ft² | 507 tCO₂e |
| 2023 | 76 | +1 | 65.2 kBtu/ft² | 511 tCO₂e |
| 2022 | 75 | 70.9 kBtu/ft² | 508 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
- 420 East 79 Street
- City
- New York City
- State
- New York
- ZIP
- 10075
- Coordinates
- 40.77206, -73.95203
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 420 East 79 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. 420 East 79's ENERGY STAR score of 80 compares with an average of 63 across the 22,829 that report a score; it scores higher than 63% of them and lower than 36%. Its site EUI of 62.5 kBtu/ft² is about 17% 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 4.2 kgCO₂e/ft² is about 18% below the group average of 5.2 kgCO₂e/ft².
At 119,420 sq ft, it is about 18% above the average floor area of 100,951 sq ft for those buildings. It was built in 1959, 7 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 420 East 79's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 420 East 79, covering report years 2022–2024. Its ENERGY STAR score went from 75 in 2022 to 80 in 2024 (+5 points). Site EUI moved from 70.9 kBtu/ft² (2022) to 62.5 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 508 tCO₂e to 507 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 80 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 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 falls in band B — above median (70–84). 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. 420 East 79's 62.5 kBtu/ft² across 119,420 sq ft works out to about 7.5 billion Btu (2,187 MWh-equivalent) in 2024. Its source EUI of 91.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 521,073 kWh of electricity, 56,909 therms of natural gas and 4,704 thousand gallons of water for the year.
Which law requires 420 East 79 to report its energy use?
420 East 79 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:2649523:2024). 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
- 8831 FORT HAMILTON PARKWAY a copy· 119,410 sq ft · score 97 (A)
- Copy of Lovett - 110-45 71st Road· 119,398 sq ft · score 87 (A)
- Elyachar: 713 2nd Ave· 119,380 sq ft · score 67 (C)
- Daniel Gilmartin Apartments· 119,349 sq ft · score 76 (B)
- Lovett - 2531 East 7th Street· 119,343 sq ft · score 11 (D)
- 540 Waverly Avenue· 119,312 sq ft · score 91 (A)
- 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 420 East 79's energy grade?
420 East 79 scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 420 East 79 use?
Its 2024 site energy-use intensity was 62.5 kBtu/ft² (91.7 kBtu/ft² source) across 119,420 sq ft, including 521,073 kWh of electricity and 56,909 therms of natural gas.
What are 420 East 79's carbon emissions?
420 East 79 reported 507 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is 420 East 79?
420 East 79 is at 420 East 79 Street, in New York City, New York 10075. Its coordinates are 40.77206, -73.95203 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 420 East 79 and when was it built?
420 East 79 has 119,420 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as multifamily housing.
Is 420 East 79 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, “420 East 79, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/420-east-79-7c88f2c8 (data as of October 2, 2026).