Rocklyn: 45-02 21st Ave
Mixed Use Property in New York City, NY · 45-02 21st Ave · 11105
At a glance
Rocklyn: 45-02 21st Ave is a 49,100-square-foot mixed use property building in New York City, New York, built in 1930. In its 2023 New York City benchmarking disclosure it reported 0 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | 0 tCO₂e |
| GHG intensity | 0.0 kgCO₂e/ft² |
| Gross floor area | 49,100 sq ft |
| Source record | nyc:15365329:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | — | — | 0 tCO₂e | |
| 2022 | — | — | 0 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
- 45-02 21st Ave
- City
- New York City
- State
- New York
- ZIP
- 11105
- Coordinates
- 40.77260, -73.90090
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Rocklyn: 45-02 21st Ave compare with other mixed use property buildings in New York City?
The latest disclosures cover 395 mixed use property buildings in New York City, out of 48,310 buildings citywide. Its emissions intensity of 0.0 kgCO₂e/ft² is about 100% below the group average of 7.9 kgCO₂e/ft².
At 49,100 sq ft, it is about 78% below the average floor area of 224,815 sq ft for those buildings. It was built in 1930, 27 years earlier than the group's average year built (1958). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has Rocklyn: 45-02 21st Ave's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Rocklyn: 45-02 21st Ave, covering report years 2022–2023. None of those years carry an ENERGY STAR score or site EUI.
Which law requires Rocklyn: 45-02 21st Ave to report its energy use?
Rocklyn: 45-02 21st 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:15365329:2023). 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 mixed use property buildings in New York City
- 229/231/233 West 74th St Corp Campus· 49,054 sq ft · EUI 250.6 kBtu/ft²
- Gateway 2 - Retail E· 48,459 sq ft · EUI 135.4 kBtu/ft²
- Arcadia LIC· 47,836 sq ft · EUI 46.1 kBtu/ft²
- 7020 Austin St Campus· 47,700 sq ft · EUI 100.6 kBtu/ft²
- 765 Bedford Ave· 46,851 sq ft · EUI 57.6 kBtu/ft²
- Wilson Hanley Inc:21-11 44 AVENUE Queens NY 11101· 46,815 sq ft · EUI 61.6 kBtu/ft²
- Mixed Use Property buildings in New York City· 395 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 Rocklyn: 45-02 21st Ave's energy grade?
Rocklyn: 45-02 21st Ave did not report an ENERGY STAR score in its 2023 disclosure.
How much energy does Rocklyn: 45-02 21st Ave use?
No energy-use intensity was reported for 2023.
What are Rocklyn: 45-02 21st Ave's carbon emissions?
Rocklyn: 45-02 21st Ave reported 0 tCO₂e of greenhouse-gas emissions (0.0 kgCO₂e/ft²) for 2023.
Where is Rocklyn: 45-02 21st Ave?
Rocklyn: 45-02 21st Ave is in New York City, New York 11105. Its coordinates are 40.77260, -73.90090 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Rocklyn: 45-02 21st Ave and when was it built?
Rocklyn: 45-02 21st Ave has 49,100 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1930 as its year built. It is classed as mixed use property.
Is Rocklyn: 45-02 21st 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, “Rocklyn: 45-02 21st Ave, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/rocklyn-45-02-21st-ave-905e874c (data as of October 2, 2026).