42 ANN STREET
Multifamily Housing in New York City, NY · 10038
At a glance
42 ANN STREET is a 28,729-square-foot multifamily housing building in New York City, New York, built in 1900. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 36.3 kBtu/ft² and 79 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 36.3 kBtu/ft² |
| Source EUI | 61.7 kBtu/ft² |
| GHG emissions | 79 tCO₂e |
| GHG intensity | 2.8 kgCO₂e/ft² |
| Electricity | 113,531 kWh |
| Natural gas | 6,557 therms |
| Water use | 673 kgal |
| Gross floor area | 28,729 sq ft |
| Source record | nyc:50149593:2024 |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 42 ANN STREET
- City
- New York City
- State
- New York
- ZIP
- 10038
- Coordinates
- 40.71039, -74.00702
Within ~1 km
Nearby benchmarked buildings
- 55 Waterscore 78
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- One Liberty Plaza (149 BROADWAY)score 75
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- 28 Libertyscore 59
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- 200 West Streetscore 83
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- 120 Broadway Holdings, LLCscore 78
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Multifamily Housing · 1,800,908 sq ft
See also: most efficient in New York City · biggest emitters
How does 42 ANN 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. 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 2.8 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 28,729 sq ft, it is about 72% below the average floor area of 100,951 sq ft for those buildings. It was built in 1900, 52 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 a site EUI of 36.3 kBtu/ft² mean?
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. 42 ANN STREET's 36.3 kBtu/ft² across 28,729 sq ft works out to about 1 billion Btu (306 MWh-equivalent) in 2024. Its source EUI of 61.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 113,531 kWh of electricity, 6,557 therms of natural gas and 673 thousand gallons of water for the year.
Which law requires 42 ANN STREET to report its energy use?
42 ANN 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:50149593:2024). 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
- 5 Lorimer· 28,727 sq ft · EUI 64.7 kBtu/ft²
- 5 LORIMER STREET· 28,727 sq ft · EUI 64.5 kBtu/ft²
- Renaissance Realty - 285 Eastern Parkway· 28,724 sq ft · score 100 (A)
- 2502 E 19th Street· 28,722 sq ft · score 46 (D)
- Ourania Lagamjis: 42-13 28th Ave· 28,719 sq ft · score 86 (A)
- Yung: 31-33 2nd Ave· 28,710 sq ft · score 80 (B)
- 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 42 ANN STREET's energy grade?
42 ANN STREET did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 36.3 kBtu/ft².
How much energy does 42 ANN STREET use?
Its 2024 site energy-use intensity was 36.3 kBtu/ft² (61.7 kBtu/ft² source) across 28,729 sq ft, including 113,531 kWh of electricity and 6,557 therms of natural gas.
What are 42 ANN STREET's carbon emissions?
42 ANN STREET reported 79 tCO₂e of greenhouse-gas emissions (2.8 kgCO₂e/ft²) for 2024.
Where is 42 ANN STREET?
42 ANN STREET is in New York City, New York 10038. Its coordinates are 40.71039, -74.00702 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 42 ANN STREET and when was it built?
42 ANN STREET has 28,729 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as multifamily housing.
Is 42 ANN 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, “42 ANN STREET, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/42-ann-street-17ea1194 (data as of October 2, 2026).