20 Seaman Avenue
Multifamily Housing in New York City, NY · 10034
At a glance
20 Seaman Avenue is a 50,754-square-foot multifamily housing building in New York City, New York, built in 1926. 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 77.7 kBtu/ft² and 252 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 | 77.7 kBtu/ft² |
| Source EUI | 105.5 kBtu/ft² |
| GHG emissions | 252 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 203,142 kWh |
| Natural gas | 32,490 therms |
| Gross floor area | 50,754 sq ft |
| Source record | nyc:2801251:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | +6 | 77.7 kBtu/ft² | 252 tCO₂e |
| 2023 | 74 | +12 | 80.1 kBtu/ft² | 255 tCO₂e |
| 2022 | 62 | 96.4 kBtu/ft² | 283 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
- 20 Seaman Avenue
- City
- New York City
- State
- New York
- ZIP
- 10034
- Coordinates
- 40.86670, -73.92737
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 20 Seaman Avenue 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. 20 Seaman Avenue'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 77.7 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.0 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 50,754 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 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 20 Seaman Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 20 Seaman Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 62 in 2022 to 80 in 2024 (+18 points). Site EUI moved from 96.4 kBtu/ft² (2022) to 77.7 kBtu/ft² (2024), a 19% decrease. Reported emissions went from 283 tCO₂e to 252 tCO₂e over the same span (down 11%).
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. 20 Seaman Avenue's 77.7 kBtu/ft² across 50,754 sq ft works out to about 3.9 billion Btu (1,156 MWh-equivalent) in 2024. Its source EUI of 105.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 203,142 kWh of electricity and 32,490 therms of natural gas for the year.
Which law requires 20 Seaman Avenue to report its energy use?
20 Seaman Avenue 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:2801251:2024). 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
- 3225 Olinville Avenue· 50,748 sq ft · score 28 (D)
- Lovett - 73 Wooster / 387 West Broadway· 50,747 sq ft · EUI 43.9 kBtu/ft²
- ALG NY Management : 554 4 AVENUE· 50,738 sq ft · EUI 25.8 kBtu/ft²
- RICE BOWL : 46-50 Mulberry· 50,737 sq ft · score 29 (D)
- 303 99th Street· 50,731 sq ft · score 67 (C)
- 281 St. Nicholas Partners LLC· 50,706 sq ft · score 12 (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 20 Seaman Avenue's energy grade?
20 Seaman Avenue 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 20 Seaman Avenue use?
Its 2024 site energy-use intensity was 77.7 kBtu/ft² (105.5 kBtu/ft² source) across 50,754 sq ft, including 203,142 kWh of electricity and 32,490 therms of natural gas.
What are 20 Seaman Avenue's carbon emissions?
20 Seaman Avenue reported 252 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2024.
Where is 20 Seaman Avenue?
20 Seaman Avenue is in New York City, New York 10034. Its coordinates are 40.86670, -73.92737 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 20 Seaman Avenue and when was it built?
20 Seaman Avenue has 50,754 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1926 as its year built. It is classed as multifamily housing.
Is 20 Seaman Avenue 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, “20 Seaman Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/20-seaman-avenue-e6383799 (data as of October 2, 2026).