15 E 109th St
Multifamily Housing in New York City, NY · 15 East 109th Street · 10029
At a glance
15 E 109th St is a 14,784-square-foot multifamily housing building at 15 East 109th Street in New York City, New York, built in 1925. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 255.5 kBtu/ft² and 211 tCO₂e of greenhouse-gas emissions. That score is higher than 0% 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 | 1 (band D) |
| Site EUI | 255.5 kBtu/ft² |
| Source EUI | 290.4 kBtu/ft² |
| GHG emissions | 211 tCO₂e |
| GHG intensity | 14.3 kgCO₂e/ft² |
| Electricity | 54,758 kWh |
| Natural gas | 35,910 therms |
| Gross floor area | 14,784 sq ft |
| Source record | nyc:5004559:2023 |
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
- 15 East 109th Street
- City
- New York City
- State
- New York
- ZIP
- 10029
- Coordinates
- 40.79583, -73.94876
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 15 E 109th St 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. 15 E 109th St's ENERGY STAR score of 1 compares with an average of 63 across the 22,829 that report a score; it scores higher than 0% of them and lower than 97%. Its site EUI of 255.5 kBtu/ft² is about 241% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 14.3 kgCO₂e/ft² is about 175% above the group average of 5.2 kgCO₂e/ft².
At 14,784 sq ft, it is about 85% below the average floor area of 100,951 sq ft for those buildings. It was built in 1925, 27 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.
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. 15 E 109th St's 255.5 kBtu/ft² across 14,784 sq ft works out to about 3.8 billion Btu (1,107 MWh-equivalent) in 2023. Its source EUI of 290.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 54,758 kWh of electricity and 35,910 therms of natural gas for the year.
Which law requires 15 E 109th St to report its energy use?
15 E 109th 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:5004559:2023). 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
- SAMUEL (CITY) - Bldg 17· 14,750 sq ft · EUI 90.9 kBtu/ft²
- SAMUEL (CITY) - Bldg 16· 14,730 sq ft · EUI 101.4 kBtu/ft²
- 4455 Douglas Avenue - 2100119· 14,715 sq ft
- 4455 Douglas Avenue - 2100110· 14,713 sq ft
- 4455 Douglas Avenue - 2100101· 14,713 sq ft
- 4455 Douglas Avenue - 2100118· 14,713 sq ft
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 15 E 109th St's energy grade?
15 E 109th St scores 1 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 15 E 109th St use?
Its 2023 site energy-use intensity was 255.5 kBtu/ft² (290.4 kBtu/ft² source) across 14,784 sq ft, including 54,758 kWh of electricity and 35,910 therms of natural gas.
What are 15 E 109th St's carbon emissions?
15 E 109th St reported 211 tCO₂e of greenhouse-gas emissions (14.3 kgCO₂e/ft²) for 2023.
Where is 15 E 109th St?
15 E 109th St is at 15 East 109th Street, in New York City, New York 10029. Its coordinates are 40.79583, -73.94876 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 15 E 109th St and when was it built?
15 E 109th St has 14,784 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1925 as its year built. It is classed as multifamily housing.
Is 15 E 109th 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, “15 E 109th St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/15-e-109th-st-af290547 (data as of October 2, 2026).