326 East 100th Street
Multifamily Housing in New York City, NY · 10029
At a glance
326 East 100th Street is a 84,180-square-foot multifamily housing building in New York City, New York, built in 1910. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 36.3 kBtu/ft² and 285 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 99 (band A) |
| Site EUI | 36.3 kBtu/ft² |
| Source EUI | 70.2 kBtu/ft² |
| GHG emissions | 285 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 459,997 kWh |
| Natural gas | 2,565 therms |
| Gross floor area | 84,180 sq ft |
| Source record | nyc:6690150:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 99 | +25 | 36.3 kBtu/ft² | 285 tCO₂e |
| 2023 | 74 | +8 | 78.5 kBtu/ft² | 537 tCO₂e |
| 2022 | 66 | 91.1 kBtu/ft² | 582 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
- 326 East 100th Street
- City
- New York City
- State
- New York
- ZIP
- 10029
- Coordinates
- 40.78623, -73.94387
Within ~1 km
Nearby benchmarked buildings
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- WASHINGTON Bldgs 5-10score —
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See also: most efficient in New York City · biggest emitters
How does 326 East 100th Street 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. 326 East 100th Street's ENERGY STAR score of 99 compares with an average of 63 across the 22,829 that report a score; it scores higher than 88% of them and lower than 10%. Its site EUI of 36.3 kBtu/ft² is about half of 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 35% below the group average of 5.2 kgCO₂e/ft².
At 84,180 sq ft, it is about 17% below the average floor area of 100,951 sq ft for those buildings. It was built in 1910, 42 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 326 East 100th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 326 East 100th Street, covering report years 2022–2024. Its ENERGY STAR score went from 66 in 2022 to 99 in 2024 (+33 points). Site EUI moved from 91.1 kBtu/ft² (2022) to 36.3 kBtu/ft² (2024), a 60% decrease. Reported emissions went from 582 tCO₂e to 285 tCO₂e over the same span (down 51%).
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 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. 326 East 100th Street's 36.3 kBtu/ft² across 84,180 sq ft works out to about 3.1 billion Btu (896 MWh-equivalent) in 2024. Its source EUI of 70.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 459,997 kWh of electricity and 2,565 therms of natural gas for the year.
Which law requires 326 East 100th Street to report its energy use?
326 East 100th Street 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:6690150:2024). 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
- Utica Place Residential LLC (2122)· 84,170 sq ft · score 13 (D)
- Michael Young: 36-08 29th Street· 84,166 sq ft · score 83 (B)
- Kaled: 110-20 73rd Road· 84,156 sq ft · score 51 (D)
- 2953 ASSOCIATES· 84,132 sq ft · score 73 (B)
- CLS: 144-44 41st Ave· 84,126 sq ft · score 100 (A)
- Cape Advisors, Inc. : 11-37 31ST AVENUE· 84,113 sq ft · score 34 (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 326 East 100th Street's energy grade?
326 East 100th Street scores 99 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 326 East 100th Street use?
Its 2024 site energy-use intensity was 36.3 kBtu/ft² (70.2 kBtu/ft² source) across 84,180 sq ft, including 459,997 kWh of electricity and 2,565 therms of natural gas.
What are 326 East 100th Street's carbon emissions?
326 East 100th Street reported 285 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2024.
Where is 326 East 100th Street?
326 East 100th Street is in New York City, New York 10029. Its coordinates are 40.78623, -73.94387 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 326 East 100th Street and when was it built?
326 East 100th Street has 84,180 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1910 as its year built. It is classed as multifamily housing.
Is 326 East 100th Street 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, “326 East 100th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/326-east-100th-street-02de0449 (data as of October 2, 2026).