305 St. Ann's Ave
Multifamily Housing in New York City, NY · 305 Saint Ann's Avenue · 10454
At a glance
305 St. Ann's Ave is a 20,280-square-foot multifamily housing building at 305 Saint Ann's Avenue in New York City, New York, built in 2001. In its 2023 New York City benchmarking disclosure it reported a site energy-use intensity of 113.0 kBtu/ft² and 153 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 113.0 kBtu/ft² |
| Source EUI | 166.5 kBtu/ft² |
| GHG emissions | 153 tCO₂e |
| GHG intensity | 7.5 kgCO₂e/ft² |
| Electricity | 162,612 kWh |
| Natural gas | 17,361 therms |
| Gross floor area | 20,280 sq ft |
| Source record | nyc:6772270:2023 |
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
- 305 Saint Ann's Avenue
- City
- New York City
- State
- New York
- ZIP
- 10454
- Coordinates
- 40.80866, -73.91628
Within ~1 km
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How does 305 St. Ann's Ave 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 113.0 kBtu/ft² is about 51% 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 7.5 kgCO₂e/ft² is about 44% above the group average of 5.2 kgCO₂e/ft².
At 20,280 sq ft, it is about 80% below the average floor area of 100,951 sq ft for those buildings. It was built in 2001, 49 years later 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 113.0 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. 305 St. Ann's Ave's 113.0 kBtu/ft² across 20,280 sq ft works out to about 2.3 billion Btu (672 MWh-equivalent) in 2023. Its source EUI of 166.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 162,612 kWh of electricity and 17,361 therms of natural gas for the year.
Which law requires 305 St. Ann's Ave to report its energy use?
305 St. Ann's Ave 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:6772270:2023). 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.
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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 305 St. Ann's Ave's energy grade?
305 St. Ann's Ave did not report an ENERGY STAR score in its 2023 disclosure, but its site energy-use intensity was 113.0 kBtu/ft².
How much energy does 305 St. Ann's Ave use?
Its 2023 site energy-use intensity was 113.0 kBtu/ft² (166.5 kBtu/ft² source) across 20,280 sq ft, including 162,612 kWh of electricity and 17,361 therms of natural gas.
What are 305 St. Ann's Ave's carbon emissions?
305 St. Ann's Ave reported 153 tCO₂e of greenhouse-gas emissions (7.5 kgCO₂e/ft²) for 2023.
Where is 305 St. Ann's Ave?
305 St. Ann's Ave is at 305 Saint Ann's Avenue, in New York City, New York 10454. Its coordinates are 40.80866, -73.91628 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 305 St. Ann's Ave and when was it built?
305 St. Ann's Ave has 20,280 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2001 as its year built. It is classed as multifamily housing.
Is 305 St. Ann's Ave 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, “305 St. Ann's Ave, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/305-st-ann-s-ave-71111a82 (data as of October 2, 2026).