The Blanchard
Office in New York City, NY · 21-10 51st Avenue · 11101
At a glance
The Blanchard is a 168,000-square-foot office building at 21-10 51st Avenue in New York City, New York, built in 1930. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 91 out of 100 (grade A), a site energy-use intensity of 38.4 kBtu/ft² and 440 tCO₂e of greenhouse-gas emissions. That score is higher than 77% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 91 (band A) |
| Site EUI | 38.4 kBtu/ft² |
| Source EUI | 72.8 kBtu/ft² |
| GHG emissions | 440 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 913,538 kWh |
| Water use | 171 kgal |
| Gross floor area | 168,000 sq ft |
| Source record | nyc:6811392:2022 |
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
- 21-10 51st Avenue
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.74105, -73.94933
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does The Blanchard 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. The Blanchard's ENERGY STAR score of 91 compares with an average of 72 across the 2,519 that report a score; it scores higher than 77% of them and lower than 21%. Its site EUI of 38.4 kBtu/ft² is about 40% 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 2.6 kgCO₂e/ft² is about 55% below the group average of 5.8 kgCO₂e/ft².
At 168,000 sq ft, it is about 18% below the average floor area of 205,440 sq ft for those buildings. It was built in 1930, 10 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.
What does an ENERGY STAR score of 91 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 91 means the building performs better than about 91% of its national peers. BuildingCensus bands the score into report-card grades; 91 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. The Blanchard's 38.4 kBtu/ft² across 168,000 sq ft works out to about 6.5 billion Btu (1,891 MWh-equivalent) in 2022. Its source EUI of 72.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 913,538 kWh of electricity and 171 thousand gallons of water for the year.
Which law requires The Blanchard to report its energy use?
The Blanchard 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 2022 disclosure (source record nyc:6811392:2022). 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
- 489 5th Avenue· 167,075 sq ft · score 72 (B)
- 218 W 40th Street· 166,315 sq ft · EUI 35.8 kBtu/ft²
- 820 2nd Avenue· 165,969 sq ft · score 90 (A)
- CBS-513· 165,625 sq ft · score 1 (D)
- 111 West 19th Street· 165,513 sq ft · score 58 (C)
- Orbach: 260 West 39th St· 165,332 sq ft · score 93 (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 The Blanchard's energy grade?
The Blanchard scores 91 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Blanchard use?
Its 2022 site energy-use intensity was 38.4 kBtu/ft² (72.8 kBtu/ft² source) across 168,000 sq ft, including 913,538 kWh of electricity.
What are The Blanchard's carbon emissions?
The Blanchard reported 440 tCO₂e of greenhouse-gas emissions (2.6 kgCO₂e/ft²) for 2022.
Where is The Blanchard?
The Blanchard is at 21-10 51st Avenue, in New York City, New York 11101. Its coordinates are 40.74105, -73.94933 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Blanchard and when was it built?
The Blanchard has 168,000 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1930 as its year built. It is classed as office.
Is The Blanchard covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “The Blanchard, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-blanchard-a2ad5694 (data as of October 2, 2026).