K808 (OECID: 0301558; BBL: 3014540054)
Office in New York City, NY · 1665 St. Marks Avenue · 11233
At a glance
K808 (OECID: 0301558; BBL: 3014540054) is a 18,000-square-foot office building at 1665 St. Marks Avenue in New York City, New York, built in 1925. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 42.1 kBtu/ft² and 56 tCO₂e of greenhouse-gas emissions. That score is higher than 95% 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 | 100 (band A) |
| Site EUI | 42.1 kBtu/ft² |
| Source EUI | 68.3 kBtu/ft² |
| GHG emissions | 56 tCO₂e |
| GHG intensity | 3.1 kgCO₂e/ft² |
| Electricity | 72,430 kWh |
| Natural gas | 5,110 therms |
| Water use | 119 kgal |
| Gross floor area | 18,000 sq ft |
| Source record | nyc:1836506:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 42.1 kBtu/ft² | 56 tCO₂e |
| 2023 | 100 | +1 | 47.9 kBtu/ft² | 62 tCO₂e |
| 2022 | 99 | 62.4 kBtu/ft² | 71 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1665 St. Marks Avenue
- City
- New York City
- State
- New York
- ZIP
- 11233
- Coordinates
- 40.67314, -73.91202
Within ~1 km
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- GLENMORE PLAZA Bldgs 2-4score —
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- HOWARDscore 11
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See also: most efficient in New York City · biggest emitters
How does K808 (OECID: 0301558; BBL: 3014540054) 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. K808 (OECID: 0301558; BBL: 3014540054)'s ENERGY STAR score of 100 compares with an average of 72 across the 2,519 that report a score; it scores higher than 95% of them. Its site EUI of 42.1 kBtu/ft² is about 35% 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 3.1 kgCO₂e/ft² is about half of the group average of 5.8 kgCO₂e/ft².
At 18,000 sq ft, it is about 91% below the average floor area of 205,440 sq ft for those buildings. It was built in 1925, 15 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 K808 (OECID: 0301558; BBL: 3014540054)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for K808 (OECID: 0301558; BBL: 3014540054), covering report years 2022–2024. Its ENERGY STAR score went from 99 in 2022 to 100 in 2024 (+1 points); its best year on file was 2023, at 100. Site EUI moved from 62.4 kBtu/ft² (2022) to 42.1 kBtu/ft² (2024), a 33% decrease. Reported emissions went from 71 tCO₂e to 56 tCO₂e over the same span (down 22%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. K808 (OECID: 0301558; BBL: 3014540054)'s 42.1 kBtu/ft² across 18,000 sq ft works out to about 0.8 billion Btu (222 MWh-equivalent) in 2024. Its source EUI of 68.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 72,430 kWh of electricity, 5,110 therms of natural gas and 119 thousand gallons of water for the year.
Which law requires K808 (OECID: 0301558; BBL: 3014540054) to report its energy use?
K808 (OECID: 0301558; BBL: 3014540054) 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:1836506:2024). 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
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- DCAS_904_Bronx Neighborhood Building· 17,364 sq ft · score 79 (B)
- Cement & Concrete Workers Pension Fund Holding Corp· 17,231 sq ft · score 47 (D)
- 108 Jewel St - 3337703· 17,075 sq ft
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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 K808 (OECID: 0301558; BBL: 3014540054)'s energy grade?
K808 (OECID: 0301558; BBL: 3014540054) scores 100 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 K808 (OECID: 0301558; BBL: 3014540054) use?
Its 2024 site energy-use intensity was 42.1 kBtu/ft² (68.3 kBtu/ft² source) across 18,000 sq ft, including 72,430 kWh of electricity and 5,110 therms of natural gas.
What are K808 (OECID: 0301558; BBL: 3014540054)'s carbon emissions?
K808 (OECID: 0301558; BBL: 3014540054) reported 56 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2024.
Where is K808 (OECID: 0301558; BBL: 3014540054)?
K808 (OECID: 0301558; BBL: 3014540054) is at 1665 St. Marks Avenue, in New York City, New York 11233. Its coordinates are 40.67314, -73.91202 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is K808 (OECID: 0301558; BBL: 3014540054) and when was it built?
K808 (OECID: 0301558; BBL: 3014540054) has 18,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as office.
Is K808 (OECID: 0301558; BBL: 3014540054) 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, “K808 (OECID: 0301558; BBL: 3014540054), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/k808-oecid-0301558-bbl-3014540054-c48a1505 (data as of October 2, 2026).