Heritage Realty: 65 Seaman Av
Multifamily Housing in New York City, NY · 65 Seaman Ave · 10034
At a glance
Heritage Realty: 65 Seaman Av is a 40,082-square-foot multifamily housing building at 65 Seaman Ave in New York City, New York, built in 1924. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 55.6 kBtu/ft² and 162 tCO₂e of greenhouse-gas emissions. That score is higher than 76% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 55.6 kBtu/ft² |
| Source EUI | 92.4 kBtu/ft² |
| GHG emissions | 162 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 228,921 kWh |
| Natural gas | 14,461 therms |
| Water use | 4,741 kgal |
| Gross floor area | 40,082 sq ft |
| Source record | nyc:6282659:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 90 | +48 | 55.6 kBtu/ft² | 162 tCO₂e |
| 2022 | 42 | 107.1 kBtu/ft² | 252 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
- 65 Seaman Ave
- City
- New York City
- State
- New York
- ZIP
- 10034
- Coordinates
- 40.86791, -73.92551
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Heritage Realty: 65 Seaman Av 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. Heritage Realty: 65 Seaman Av's ENERGY STAR score of 90 compares with an average of 63 across the 22,829 that report a score; it scores higher than 76% of them and lower than 22%. Its site EUI of 55.6 kBtu/ft² is about 26% 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 4.0 kgCO₂e/ft² is about 23% below the group average of 5.2 kgCO₂e/ft².
At 40,082 sq ft, it is about 60% below the average floor area of 100,951 sq ft for those buildings. It was built in 1924, 28 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 Heritage Realty: 65 Seaman Av's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Heritage Realty: 65 Seaman Av, covering report years 2022–2023. Its ENERGY STAR score went from 42 in 2022 to 90 in 2023 (+48 points). Site EUI moved from 107.1 kBtu/ft² (2022) to 55.6 kBtu/ft² (2023), a 48% decrease. Reported emissions went from 252 tCO₂e to 162 tCO₂e over the same span (down 36%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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. Heritage Realty: 65 Seaman Av's 55.6 kBtu/ft² across 40,082 sq ft works out to about 2.2 billion Btu (653 MWh-equivalent) in 2023. Its source EUI of 92.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 228,921 kWh of electricity, 14,461 therms of natural gas and 4,741 thousand gallons of water for the year.
Which law requires Heritage Realty: 65 Seaman Av to report its energy use?
Heritage Realty: 65 Seaman Av 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:6282659:2023). 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.
More multifamily housing buildings in New York City
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- The Marx Condo - 34-32 35th St· 40,065 sq ft · score 76 (B)
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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 Heritage Realty: 65 Seaman Av's energy grade?
Heritage Realty: 65 Seaman Av scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Heritage Realty: 65 Seaman Av use?
Its 2023 site energy-use intensity was 55.6 kBtu/ft² (92.4 kBtu/ft² source) across 40,082 sq ft, including 228,921 kWh of electricity and 14,461 therms of natural gas.
What are Heritage Realty: 65 Seaman Av's carbon emissions?
Heritage Realty: 65 Seaman Av reported 162 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2023.
Where is Heritage Realty: 65 Seaman Av?
Heritage Realty: 65 Seaman Av is at 65 Seaman Ave, in New York City, New York 10034. Its coordinates are 40.86791, -73.92551 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Heritage Realty: 65 Seaman Av and when was it built?
Heritage Realty: 65 Seaman Av has 40,082 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1924 as its year built. It is classed as multifamily housing.
Is Heritage Realty: 65 Seaman Av 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, “Heritage Realty: 65 Seaman Av, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/heritage-realty-65-seaman-av-b67798ed (data as of October 2, 2026).