Marcy Hart LLC
Multifamily Housing in New York City, NY · 633 Marcy Avenue · 11206
At a glance
Marcy Hart LLC is a 61,699-square-foot multifamily housing building at 633 Marcy Avenue in New York City, New York, built in 2018. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 5 out of 100 (grade D), a site energy-use intensity of 74.6 kBtu/ft² and 479 tCO₂e of greenhouse-gas emissions. That score is higher than 4% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 5 (band D) |
| Site EUI | 74.6 kBtu/ft² |
| Source EUI | 197.7 kBtu/ft² |
| GHG emissions | 479 tCO₂e |
| GHG intensity | 7.8 kgCO₂e/ft² |
| Electricity | 1,234,041 kWh |
| Natural gas | 3,907 therms |
| Water use | 2,258 kgal |
| Gross floor area | 61,699 sq ft |
| Source record | nyc:16057170:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 5 | +4 | 74.6 kBtu/ft² | 479 tCO₂e |
| 2022 | 1 | 91.3 kBtu/ft² | 459 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
- 633 Marcy Avenue
- City
- New York City
- State
- New York
- ZIP
- 11206
- Coordinates
- 40.69292, -73.94871
Within ~1 km
Nearby benchmarked buildings
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- Benchmarking Group - 115score 31
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See also: most efficient in New York City · biggest emitters
How does Marcy Hart LLC 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. Marcy Hart LLC's ENERGY STAR score of 5 compares with an average of 63 across the 22,829 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 74.6 kBtu/ft² is roughly in line with 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 7.8 kgCO₂e/ft² is about 50% above the group average of 5.2 kgCO₂e/ft².
At 61,699 sq ft, it is about 39% below the average floor area of 100,951 sq ft for those buildings. It was built in 2018, 66 years later 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.
How has Marcy Hart LLC's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Marcy Hart LLC, covering report years 2022–2023. Its ENERGY STAR score went from 1 in 2022 to 5 in 2023 (+4 points). Site EUI moved from 91.3 kBtu/ft² (2022) to 74.6 kBtu/ft² (2023), a 18% decrease. Reported emissions went from 459 tCO₂e to 479 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 5 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 5 means the building performs better than about 5% of its national peers. BuildingCensus bands the score into report-card grades; 5 falls in band D — lowest band (1–54). It sits 70 points below 75, the threshold for ENERGY STAR certification. 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. Marcy Hart LLC's 74.6 kBtu/ft² across 61,699 sq ft works out to about 4.6 billion Btu (1,349 MWh-equivalent) in 2023. Its source EUI of 197.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,234,041 kWh of electricity, 3,907 therms of natural gas and 2,258 thousand gallons of water for the year.
Which law requires Marcy Hart LLC to report its energy use?
Marcy Hart LLC 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 2023 disclosure (source record nyc:16057170:2023). 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
- 4600 14th Avenue· 61,690 sq ft · score 80 (B)
- Green Light Energy Conservation:4600 14 AVENUE· 61,690 sq ft · score 48 (D)
- JK: 646 Rutland Road· 61,688 sq ft · score 20 (D)
- 130-148 Suffolk Street AKA 151-153 Stanton Street· 61,673 sq ft · score 72 (B)
- 2 South Pinehurst Avenue· 61,670 sq ft · score 95 (A)
- Prospect Management - 339 Greene Ave,· 61,660 sq ft · score 83 (B)
- 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 Marcy Hart LLC's energy grade?
Marcy Hart LLC scores 5 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Marcy Hart LLC use?
Its 2023 site energy-use intensity was 74.6 kBtu/ft² (197.7 kBtu/ft² source) across 61,699 sq ft, including 1,234,041 kWh of electricity and 3,907 therms of natural gas.
What are Marcy Hart LLC's carbon emissions?
Marcy Hart LLC reported 479 tCO₂e of greenhouse-gas emissions (7.8 kgCO₂e/ft²) for 2023.
Where is Marcy Hart LLC?
Marcy Hart LLC is at 633 Marcy Avenue, in New York City, New York 11206. Its coordinates are 40.69292, -73.94871 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Marcy Hart LLC and when was it built?
Marcy Hart LLC has 61,699 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2018 as its year built. It is classed as multifamily housing.
Is Marcy Hart LLC covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Marcy Hart LLC, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/marcy-hart-llc-29b1c6ed (data as of October 2, 2026).