49-47 31st Street
Office in New York City, NY · 11101
At a glance
49-47 31st Street is a 64,358-square-foot office building in New York City, New York, built in 1931. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 14.4 kBtu/ft² and 83 tCO₂e of greenhouse-gas emissions. That score is higher than 94% 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 | 99 (band A) |
| Site EUI | 14.4 kBtu/ft² |
| Source EUI | 29.8 kBtu/ft² |
| GHG emissions | 83 tCO₂e |
| GHG intensity | 1.3 kgCO₂e/ft² |
| Electricity | 158,224 kWh |
| Natural gas | 3,897 therms |
| Water use | 147 kgal |
| Gross floor area | 64,358 sq ft |
| Source record | nyc:5052729:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 99 | -1 | 14.4 kBtu/ft² | 83 tCO₂e |
| 2023 | 100 | ±0 | 10.1 kBtu/ft² | 48 tCO₂e |
| 2022 | 100 | 8.4 kBtu/ft² | 31 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
- 49-47 31st Street
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.73917, -73.93657
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 49-47 31st Street 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. 49-47 31st Street's ENERGY STAR score of 99 compares with an average of 72 across the 2,519 that report a score; it scores higher than 94% of them and lower than 5%. Its site EUI of 14.4 kBtu/ft² is about 78% 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 1.3 kgCO₂e/ft² is about 78% below the group average of 5.8 kgCO₂e/ft².
At 64,358 sq ft, it is about 69% below the average floor area of 205,440 sq ft for those buildings. It was built in 1931, 9 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 49-47 31st Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 49-47 31st Street, covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 99 in 2024 (-1 points); its best year on file was 2022, at 100. Site EUI moved from 8.4 kBtu/ft² (2022) to 14.4 kBtu/ft² (2024), an 71% increase. Reported emissions went from 31 tCO₂e to 83 tCO₂e over the same span (up 169%).
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 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. 49-47 31st Street's 14.4 kBtu/ft² across 64,358 sq ft works out to about 0.9 billion Btu (272 MWh-equivalent) in 2024. Its source EUI of 29.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 158,224 kWh of electricity, 3,897 therms of natural gas and 147 thousand gallons of water for the year.
Which law requires 49-47 31st Street to report its energy use?
49-47 31st Street 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:5052729:2024). 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 office buildings in New York City
- Douglaston: 82-11 37th Ave· 64,337 sq ft · score 69 (C)
- 37 West 65th Street· 64,294 sq ft · EUI 101.6 kBtu/ft²
- 237 West 37th Street· 64,280 sq ft · score 58 (C)
- 22 West 38th Street· 64,164 sq ft · score 85 (A)
- 6W48th aggregate data· 64,143 sq ft · score 93 (A)
- BRAM - 2730 Arthur Kill Road· 64,117 sq ft · score 100 (A)
- 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 49-47 31st Street's energy grade?
49-47 31st Street scores 99 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 49-47 31st Street use?
Its 2024 site energy-use intensity was 14.4 kBtu/ft² (29.8 kBtu/ft² source) across 64,358 sq ft, including 158,224 kWh of electricity and 3,897 therms of natural gas.
What are 49-47 31st Street's carbon emissions?
49-47 31st Street reported 83 tCO₂e of greenhouse-gas emissions (1.3 kgCO₂e/ft²) for 2024.
Where is 49-47 31st Street?
49-47 31st Street is in New York City, New York 11101. Its coordinates are 40.73917, -73.93657 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 49-47 31st Street and when was it built?
49-47 31st Street has 64,358 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1931 as its year built. It is classed as office.
Is 49-47 31st Street 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, “49-47 31st Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/49-47-31st-street-a07d1473 (data as of October 2, 2026).