850 St. Marks Ave
Multifamily Housing in New York City, NY · 850 SAINT MARKS AVE · 11213
At a glance
850 St. Marks Ave is a 75,222-square-foot multifamily housing building at 850 SAINT MARKS AVE in New York City, New York, built in 1926. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 13.0 kBtu/ft² and 73 tCO₂e of greenhouse-gas emissions. That score is higher than 90% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 13.0 kBtu/ft² |
| Source EUI | 29.4 kBtu/ft² |
| GHG emissions | 73 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 198,521 kWh |
| Gross floor area | 75,222 sq ft |
| Source record | nyc:10365235:2022 |
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
- 850 SAINT MARKS AVE
- City
- New York City
- State
- New York
- ZIP
- 11213
- Coordinates
- 40.67492, -73.94487
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 850 St. Marks Ave compare with other multifamily housing buildings in New York City?
The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. 850 St. Marks Ave's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 13.0 kBtu/ft² is about 83% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.0 kgCO₂e/ft² is about 81% below the group average of 5.2 kgCO₂e/ft².
At 75,222 sq ft, it is about 25% below the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
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. 850 St. Marks Ave's 13.0 kBtu/ft² across 75,222 sq ft works out to about 1 billion Btu (287 MWh-equivalent) in 2022. Its source EUI of 29.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 198,521 kWh of electricity for the year.
Which law requires 850 St. Marks Ave to report its energy use?
850 St. Marks 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 2022 disclosure (source record nyc:10365235:2022). 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 multifamily housing buildings in New York City
- Gateway Elton II - 516· 75,216 sq ft · score 72 (B)
- 110-14 Astoria Boulevard· 75,201 sq ft · score 36 (D)
- Andrews: 205 West 19th St.· 75,191 sq ft · EUI 37.3 kBtu/ft²
- Ivanaj 2545 Realty Corp· 75,180 sq ft · score 22 (D)
- 718 Broadway· 75,165 sq ft · score 60 (C)
- Manhattan Avenue Apartments· 75,164 sq ft · score 66 (C)
- Multifamily Housing buildings in New York City· 33,022 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 850 St. Marks Ave's energy grade?
850 St. Marks Ave scores 100 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 850 St. Marks Ave use?
Its 2022 site energy-use intensity was 13.0 kBtu/ft² (29.4 kBtu/ft² source) across 75,222 sq ft, including 198,521 kWh of electricity.
What are 850 St. Marks Ave's carbon emissions?
850 St. Marks Ave reported 73 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2022.
Where is 850 St. Marks Ave?
850 St. Marks Ave is at 850 SAINT MARKS AVE, in New York City, New York 11213. Its coordinates are 40.67492, -73.94487 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 850 St. Marks Ave and when was it built?
850 St. Marks Ave has 75,222 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1926 as its year built. It is classed as multifamily housing.
Is 850 St. Marks Ave 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, “850 St. Marks Ave, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/850-st-marks-ave-f76dff1a (data as of October 2, 2026).