Copy of Stonehenge - 20 Park Avenue
Multifamily Housing in New York City, NY · 20 Park Avenue · 10016
At a glance
Copy of Stonehenge - 20 Park Avenue is a 102,740-square-foot multifamily housing building in New York City, New York, built in 1939. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 47 out of 100 (grade D), a site energy-use intensity of 82.9 kBtu/ft² and 689 tCO₂e of greenhouse-gas emissions. That score is higher than 29% 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 | 47 (band D) |
| Site EUI | 82.9 kBtu/ft² |
| Source EUI | 111.2 kBtu/ft² |
| GHG emissions | 689 tCO₂e |
| GHG intensity | 6.7 kgCO₂e/ft² |
| Electricity | 460,627 kWh |
| Natural gas | 2,095 therms |
| Water use | 4,350 kgal |
| Gross floor area | 102,740 sq ft |
| Source record | nyc:35497508:2023 |
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
- 20 Park Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74785, -73.98079
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Copy of Stonehenge - 20 Park Avenue 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. Copy of Stonehenge - 20 Park Avenue's ENERGY STAR score of 47 compares with an average of 63 across the 22,829 that report a score; it scores higher than 29% of them and lower than 70%. Its site EUI of 82.9 kBtu/ft² is about 11% 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 6.7 kgCO₂e/ft² is about 29% above the group average of 5.2 kgCO₂e/ft².
At 102,740 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 1939, 13 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 47 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 47 means the building performs better than about 47% of its national peers. BuildingCensus bands the score into report-card grades; 47 falls in band D — lowest band (1–54). It sits 28 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. Copy of Stonehenge - 20 Park Avenue's 82.9 kBtu/ft² across 102,740 sq ft works out to about 8.5 billion Btu (2,496 MWh-equivalent) in 2023. Its source EUI of 111.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 460,627 kWh of electricity, 2,095 therms of natural gas and 4,350 thousand gallons of water for the year.
Which law requires Copy of Stonehenge - 20 Park Avenue to report its energy use?
Copy of Stonehenge - 20 Park Avenue 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:35497508:2023). 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
- New West 2: 24-30, 46-50, 52-56: NW2: 24-56 W 111· 102,736 sq ft · score 71 (B)
- New West 1: 8-44: NW1: 8 - 44 W 111· 102,736 sq ft · score 62 (C)
- Century - 1213 Avenue Z (Child - 1213 Ave Z)· 102,727 sq ft · score 1 (D)
- Century - 1213 Avenue Z (Child - 1213 Rear Ave Z)· 102,727 sq ft
- Carnegie Management: 248 McKibbin St· 102,720 sq ft · EUI 35.9 kBtu/ft²
- 333 West End Tenants Corp. (333 West End Ave)· 102,682 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 Copy of Stonehenge - 20 Park Avenue's energy grade?
Copy of Stonehenge - 20 Park Avenue scores 47 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 Copy of Stonehenge - 20 Park Avenue use?
Its 2023 site energy-use intensity was 82.9 kBtu/ft² (111.2 kBtu/ft² source) across 102,740 sq ft, including 460,627 kWh of electricity and 2,095 therms of natural gas.
What are Copy of Stonehenge - 20 Park Avenue's carbon emissions?
Copy of Stonehenge - 20 Park Avenue reported 689 tCO₂e of greenhouse-gas emissions (6.7 kgCO₂e/ft²) for 2023.
Where is Copy of Stonehenge - 20 Park Avenue?
Copy of Stonehenge - 20 Park Avenue is in New York City, New York 10016. Its coordinates are 40.74785, -73.98079 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Copy of Stonehenge - 20 Park Avenue and when was it built?
Copy of Stonehenge - 20 Park Avenue has 102,740 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1939 as its year built. It is classed as multifamily housing.
Is Copy of Stonehenge - 20 Park Avenue 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, “Copy of Stonehenge - 20 Park Avenue, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/copy-of-stonehenge-20-park-avenue-fe50e36d (data as of October 2, 2026).