1245 Realty Enterprise
Multifamily Housing in New York City, NY · 1245 50th Street · 11219
At a glance
1245 Realty Enterprise is a 67,200-square-foot multifamily housing building at 1245 50th Street in New York City, New York, built in 1940. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 68 out of 100 (grade C), a site energy-use intensity of 77.9 kBtu/ft² and 338 tCO₂e of greenhouse-gas emissions. That score is higher than 49% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 68 (band C) |
| Site EUI | 77.9 kBtu/ft² |
| Source EUI | 107.0 kBtu/ft² |
| GHG emissions | 338 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 284,136 kWh |
| Natural gas | 42,659 therms |
| Water use | 3,762 kgal |
| Gross floor area | 67,200 sq ft |
| Source record | nyc:3879063:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 68 | +6 | 77.9 kBtu/ft² | 338 tCO₂e |
| 2022 | 62 | 92.3 kBtu/ft² | 359 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
- 1245 50th Street
- City
- New York City
- State
- New York
- ZIP
- 11219
- Coordinates
- 40.63517, -73.99384
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 1245 Realty Enterprise 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. 1245 Realty Enterprise's ENERGY STAR score of 68 compares with an average of 63 across the 22,829 that report a score; it scores higher than 49% of them and lower than 50%. Its site EUI of 77.9 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.0 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 67,200 sq ft, it is about 33% below the average floor area of 100,951 sq ft for those buildings. It was built in 1940, 12 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.
How has 1245 Realty Enterprise's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 1245 Realty Enterprise, covering report years 2022, 2024. Its ENERGY STAR score went from 62 in 2022 to 68 in 2024 (+6 points). Site EUI moved from 92.3 kBtu/ft² (2022) to 77.9 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 359 tCO₂e to 338 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 68 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 68 means the building performs better than about 68% of its national peers. BuildingCensus bands the score into report-card grades; 68 falls in band C — below median (55–69). It sits 7 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. 1245 Realty Enterprise's 77.9 kBtu/ft² across 67,200 sq ft works out to about 5.2 billion Btu (1,534 MWh-equivalent) in 2024. Its source EUI of 107.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 284,136 kWh of electricity, 42,659 therms of natural gas and 3,762 thousand gallons of water for the year.
Which law requires 1245 Realty Enterprise to report its energy use?
1245 Realty Enterprise 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:3879063:2024). 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 multifamily housing buildings in New York City
- 420 28 STREET· 67,198 sq ft · score 78 (B)
- 134-138 Pierrepont Street· 67,194 sq ft · EUI 63.5 kBtu/ft²
- Rudd: 166 E 96th St· 67,184 sq ft · score 52 (D)
- 2815 Atlantic Avenue· 67,178 sq ft · score 28 (D)
- 2817 Atlantic Avenue· 67,178 sq ft · score 100 (A)
- Wingate Realty LLC· 67,175 sq ft · score 21 (D)
- 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 1245 Realty Enterprise's energy grade?
1245 Realty Enterprise scores 68 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1245 Realty Enterprise use?
Its 2024 site energy-use intensity was 77.9 kBtu/ft² (107.0 kBtu/ft² source) across 67,200 sq ft, including 284,136 kWh of electricity and 42,659 therms of natural gas.
What are 1245 Realty Enterprise's carbon emissions?
1245 Realty Enterprise reported 338 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2024.
Where is 1245 Realty Enterprise?
1245 Realty Enterprise is at 1245 50th Street, in New York City, New York 11219. Its coordinates are 40.63517, -73.99384 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1245 Realty Enterprise and when was it built?
1245 Realty Enterprise has 67,200 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1940 as its year built. It is classed as multifamily housing.
Is 1245 Realty Enterprise 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, “1245 Realty Enterprise, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1245-realty-enterprise-2cd552fd (data as of October 2, 2026).