ANSONIA STORAGE CORP
Multifamily Housing in New York City, NY · 443 12th Street · 11215
At a glance
ANSONIA STORAGE CORP is a 42,500-square-foot multifamily housing building at 443 12th Street in New York City, New York, built in 1960. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 9 out of 100 (grade D), a site energy-use intensity of 120.5 kBtu/ft² and 313 tCO₂e of greenhouse-gas emissions. That score is higher than 7% 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 | 9 (band D) |
| Site EUI | 120.5 kBtu/ft² |
| Source EUI | 154.0 kBtu/ft² |
| GHG emissions | 313 tCO₂e |
| GHG intensity | 7.4 kgCO₂e/ft² |
| Electricity | 195,294 kWh |
| Natural gas | 44,557 therms |
| Gross floor area | 42,500 sq ft |
| Source record | nyc:15596397:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 9 | -77 | 120.5 kBtu/ft² | 313 tCO₂e |
| 2023 | 86 | +13 | 51.4 kBtu/ft² | 152 tCO₂e |
| 2022 | 73 | 65.3 kBtu/ft² | 170 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
- 443 12th Street
- City
- New York City
- State
- New York
- ZIP
- 11215
- Coordinates
- 40.66443, -73.98170
Within ~1 km
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How does ANSONIA STORAGE CORP 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. ANSONIA STORAGE CORP's ENERGY STAR score of 9 compares with an average of 63 across the 22,829 that report a score; it scores higher than 7% of them and lower than 93%. Its site EUI of 120.5 kBtu/ft² is about 61% 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 7.4 kgCO₂e/ft² is about 42% above the group average of 5.2 kgCO₂e/ft².
At 42,500 sq ft, it is about 58% below the average floor area of 100,951 sq ft for those buildings. It was built in 1960, 8 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.
How has ANSONIA STORAGE CORP's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for ANSONIA STORAGE CORP, covering report years 2022–2024. Its ENERGY STAR score went from 73 in 2022 to 9 in 2024 (-64 points); its best year on file was 2023, at 86. Site EUI moved from 65.3 kBtu/ft² (2022) to 120.5 kBtu/ft² (2024), an 85% increase. Reported emissions went from 170 tCO₂e to 313 tCO₂e over the same span (up 84%).
What does an ENERGY STAR score of 9 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 9 means the building performs better than about 9% of its national peers. BuildingCensus bands the score into report-card grades; 9 falls in band D — lowest band (1–54). It sits 66 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. ANSONIA STORAGE CORP's 120.5 kBtu/ft² across 42,500 sq ft works out to about 5.1 billion Btu (1,501 MWh-equivalent) in 2024. Its source EUI of 154.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 195,294 kWh of electricity and 44,557 therms of natural gas for the year.
Which law requires ANSONIA STORAGE CORP to report its energy use?
ANSONIA STORAGE CORP 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:15596397:2024). 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.
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- 4002-4004 Carpenter Avenue· 42,490 sq ft · score 74 (B)
- Thor Chocolate Factory (43 Waverly Avenue)· 42,488 sq ft
- 189 East 18th Street· 42,488 sq ft · score 94 (A)
- 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 ANSONIA STORAGE CORP's energy grade?
ANSONIA STORAGE CORP scores 9 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does ANSONIA STORAGE CORP use?
Its 2024 site energy-use intensity was 120.5 kBtu/ft² (154.0 kBtu/ft² source) across 42,500 sq ft, including 195,294 kWh of electricity and 44,557 therms of natural gas.
What are ANSONIA STORAGE CORP's carbon emissions?
ANSONIA STORAGE CORP reported 313 tCO₂e of greenhouse-gas emissions (7.4 kgCO₂e/ft²) for 2024.
Where is ANSONIA STORAGE CORP?
ANSONIA STORAGE CORP is at 443 12th Street, in New York City, New York 11215. Its coordinates are 40.66443, -73.98170 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is ANSONIA STORAGE CORP and when was it built?
ANSONIA STORAGE CORP has 42,500 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as multifamily housing.
Is ANSONIA STORAGE CORP 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, “ANSONIA STORAGE CORP, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ansonia-storage-corp-bd6e405a (data as of October 2, 2026).