Chestnut - 1877 Webster Avenue
Office in New York City, NY · 1877 Webster Avenue · 10467
At a glance
Chestnut - 1877 Webster Avenue is a 44,500-square-foot office building in New York City, New York, built in 1927. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 45.0 kBtu/ft² and 191 tCO₂e of greenhouse-gas emissions. That score is higher than 50% 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 | 79 (band B) |
| Site EUI | 45.0 kBtu/ft² |
| Source EUI | 101.0 kBtu/ft² |
| GHG emissions | 191 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 400,095 kWh |
| Natural gas | 6,394 therms |
| Water use | 1,635 kgal |
| Gross floor area | 44,500 sq ft |
| Source record | nyc:6688618:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | -3 | 45.0 kBtu/ft² | 191 tCO₂e |
| 2023 | 82 | -7 | 40.0 kBtu/ft² | 167 tCO₂e |
| 2022 | 89 | 38.9 kBtu/ft² | 128 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
- 1877 Webster Avenue
- City
- New York City
- State
- New York
- ZIP
- 10467
- Coordinates
- 40.84724, -73.90122
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Chestnut - 1877 Webster Avenue 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. Chestnut - 1877 Webster Avenue's ENERGY STAR score of 79 compares with an average of 72 across the 2,519 that report a score; it scores higher than 50% of them and lower than 48%. Its site EUI of 45.0 kBtu/ft² is about 30% 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 4.3 kgCO₂e/ft² is about 26% below the group average of 5.8 kgCO₂e/ft².
At 44,500 sq ft, it is about 78% below the average floor area of 205,440 sq ft for those buildings. It was built in 1927, 13 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 Chestnut - 1877 Webster Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Chestnut - 1877 Webster Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 89 in 2022 to 79 in 2024 (-10 points); its best year on file was 2022, at 89. Site EUI moved from 38.9 kBtu/ft² (2022) to 45.0 kBtu/ft² (2024), an 16% increase. Reported emissions went from 128 tCO₂e to 191 tCO₂e over the same span (up 49%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 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. Chestnut - 1877 Webster Avenue's 45.0 kBtu/ft² across 44,500 sq ft works out to about 2 billion Btu (587 MWh-equivalent) in 2024. Its source EUI of 101.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 400,095 kWh of electricity, 6,394 therms of natural gas and 1,635 thousand gallons of water for the year.
Which law requires Chestnut - 1877 Webster Avenue to report its energy use?
Chestnut - 1877 Webster 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 2024 disclosure (source record nyc:6688618:2024). 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 Chestnut - 1877 Webster Avenue's energy grade?
Chestnut - 1877 Webster Avenue scores 79 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 Chestnut - 1877 Webster Avenue use?
Its 2024 site energy-use intensity was 45.0 kBtu/ft² (101.0 kBtu/ft² source) across 44,500 sq ft, including 400,095 kWh of electricity and 6,394 therms of natural gas.
What are Chestnut - 1877 Webster Avenue's carbon emissions?
Chestnut - 1877 Webster Avenue reported 191 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is Chestnut - 1877 Webster Avenue?
Chestnut - 1877 Webster Avenue is in New York City, New York 10467. Its coordinates are 40.84724, -73.90122 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Chestnut - 1877 Webster Avenue and when was it built?
Chestnut - 1877 Webster Avenue has 44,500 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1927 as its year built. It is classed as office.
Is Chestnut - 1877 Webster Avenue 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, “Chestnut - 1877 Webster Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/chestnut-1877-webster-avenue-7075244e (data as of October 2, 2026).