24-02 49th Avenue (23-02 49 AVE)
Office in New York City, NY · 23-02 49 AVENUE · 11101
At a glance
24-02 49th Avenue (23-02 49 AVE) is a 664,669-square-foot office building at 23-02 49 AVENUE in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 52.5 kBtu/ft² and 3,078 tCO₂e of greenhouse-gas emissions. That score is higher than 44% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 76 (band B) |
| Site EUI | 52.5 kBtu/ft² |
| Source EUI | 107.2 kBtu/ft² |
| GHG emissions | 3,078 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 5,798,843 kWh |
| Natural gas | 150,857 therms |
| Water use | 5,801 kgal |
| Gross floor area | 664,669 sq ft |
| Source record | nyc:6131880:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 76 | +6 | 52.5 kBtu/ft² | 3,078 tCO₂e |
| 2023 | 70 | +1 | 47.8 kBtu/ft² | 2,851 tCO₂e |
| 2022 | 69 | 45.5 kBtu/ft² | 2,198 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
- 23-02 49 AVENUE
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.74204, -73.94677
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 24-02 49th Avenue (23-02 49 AVE) compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 24-02 49th Avenue (23-02 49 AVE)'s ENERGY STAR score of 76 compares with an average of 72 across the 2,519 that report a score; it scores higher than 44% of them and lower than 54%. Its site EUI of 52.5 kBtu/ft² is about 19% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.6 kgCO₂e/ft² is about 20% below the group average of 5.8 kgCO₂e/ft².
At 664,669 sq ft, it is about 224% above the average floor area of 205,440 sq ft for those buildings. It was built in 1928, 12 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 24-02 49th Avenue (23-02 49 AVE)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 24-02 49th Avenue (23-02 49 AVE), covering report years 2022–2024. Its ENERGY STAR score went from 69 in 2022 to 76 in 2024 (+7 points). Site EUI moved from 45.5 kBtu/ft² (2022) to 52.5 kBtu/ft² (2024), an 15% increase. Reported emissions went from 2,198 tCO₂e to 3,078 tCO₂e over the same span (up 40%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 falls in band B — above median (70–84). 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. 24-02 49th Avenue (23-02 49 AVE)'s 52.5 kBtu/ft² across 664,669 sq ft works out to about 34.9 billion Btu (10,227 MWh-equivalent) in 2024. Its source EUI of 107.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,798,843 kWh of electricity, 150,857 therms of natural gas and 5,801 thousand gallons of water for the year.
Which law requires 24-02 49th Avenue (23-02 49 AVE) to report its energy use?
24-02 49th Avenue (23-02 49 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:6131880:2024). 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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- Office buildings in New York City· 3,384 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 24-02 49th Avenue (23-02 49 AVE)'s energy grade?
24-02 49th Avenue (23-02 49 AVE) scores 76 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 24-02 49th Avenue (23-02 49 AVE) use?
Its 2024 site energy-use intensity was 52.5 kBtu/ft² (107.2 kBtu/ft² source) across 664,669 sq ft, including 5,798,843 kWh of electricity and 150,857 therms of natural gas.
What are 24-02 49th Avenue (23-02 49 AVE)'s carbon emissions?
24-02 49th Avenue (23-02 49 AVE) reported 3,078 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 24-02 49th Avenue (23-02 49 AVE)?
24-02 49th Avenue (23-02 49 AVE) is at 23-02 49 AVENUE, in New York City, New York 11101. Its coordinates are 40.74204, -73.94677 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 24-02 49th Avenue (23-02 49 AVE) and when was it built?
24-02 49th Avenue (23-02 49 AVE) has 664,669 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as office.
Is 24-02 49th Avenue (23-02 49 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, “24-02 49th Avenue (23-02 49 AVE), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/24-02-49th-avenue-23-02-49-ave-b4009b6a (data as of October 2, 2026).