1021 Park Ave
Multifamily Housing in New York City, NY · 1021 PARK AVE. · 10028
At a glance
1021 Park Ave is a 130,864-square-foot multifamily housing building at 1021 PARK AVE. in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 62.2 kBtu/ft² and 583 tCO₂e of greenhouse-gas emissions. That score is higher than 76% 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 | 90 (band A) |
| Site EUI | 62.2 kBtu/ft² |
| Source EUI | 92.5 kBtu/ft² |
| GHG emissions | 583 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 604,463 kWh |
| Natural gas | 49,700 therms |
| Water use | 2,068 kgal |
| Gross floor area | 130,864 sq ft |
| Source record | nyc:2670742:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 90 | -3 | 62.2 kBtu/ft² | 583 tCO₂e |
| 2023 | 93 | +3 | 55.6 kBtu/ft² | 498 tCO₂e |
| 2022 | 90 | 66.0 kBtu/ft² | 530 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
- 1021 PARK AVE.
- City
- New York City
- State
- New York
- ZIP
- 10028
- Coordinates
- 40.77941, -73.95725
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 1021 Park 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. 1021 Park Ave's ENERGY STAR score of 90 compares with an average of 63 across the 22,829 that report a score; it scores higher than 76% of them and lower than 22%. Its site EUI of 62.2 kBtu/ft² is about 17% below 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 4.5 kgCO₂e/ft² is about 14% below the group average of 5.2 kgCO₂e/ft².
At 130,864 sq ft, it is about 30% above the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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 1021 Park Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 1021 Park Ave, covering report years 2022–2024. Its ENERGY STAR score was 90 in both 2022 and 2024. Site EUI moved from 66.0 kBtu/ft² (2022) to 62.2 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 530 tCO₂e to 583 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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. 1021 Park Ave's 62.2 kBtu/ft² across 130,864 sq ft works out to about 8.1 billion Btu (2,386 MWh-equivalent) in 2024. Its source EUI of 92.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 604,463 kWh of electricity, 49,700 therms of natural gas and 2,068 thousand gallons of water for the year.
Which law requires 1021 Park Ave to report its energy use?
1021 Park 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 2024 disclosure (source record nyc:2670742:2024). 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
- 84-85 Garden Owners Corp· 130,820 sq ft · score 82 (B)
- Wise Towers 139 - 3 of 3 BINs· 130,805 sq ft
- Wise Towers 139 - 2 of 3 BINs· 130,803 sq ft
- Wise Towers 139 - 1 of 3 BINs· 130,803 sq ft
- 1825 Boston Road· 130,760 sq ft · score 70 (B)
- Halstead - 305 East 85th Street· 130,674 sq ft · score 20 (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 1021 Park Ave's energy grade?
1021 Park Ave scores 90 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 1021 Park Ave use?
Its 2024 site energy-use intensity was 62.2 kBtu/ft² (92.5 kBtu/ft² source) across 130,864 sq ft, including 604,463 kWh of electricity and 49,700 therms of natural gas.
What are 1021 Park Ave's carbon emissions?
1021 Park Ave reported 583 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is 1021 Park Ave?
1021 Park Ave is at 1021 PARK AVE., in New York City, New York 10028. Its coordinates are 40.77941, -73.95725 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1021 Park Ave and when was it built?
1021 Park Ave has 130,864 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is 1021 Park Ave 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, “1021 Park Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1021-park-ave-44ac8388 (data as of October 2, 2026).