Longwood: 755 Southern Boulevard
Multifamily Housing in New York City, NY · 755 Southern Boulevard · 10455
At a glance
Longwood: 755 Southern Boulevard is a 54,636-square-foot multifamily housing building in New York City, New York, built in 1908. 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 18.9 kBtu/ft² and 107 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 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 18.9 kBtu/ft² |
| Source EUI | 47.0 kBtu/ft² |
| GHG emissions | 107 tCO₂e |
| GHG intensity | 2.0 kgCO₂e/ft² |
| Electricity | 248,738 kWh |
| Natural gas | 1,840 therms |
| Water use | 3,962 kgal |
| Gross floor area | 54,636 sq ft |
| Source record | nyc:15565290:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 18.9 kBtu/ft² | 107 tCO₂e |
| 2023 | 100 | ±0 | 18.8 kBtu/ft² | 101 tCO₂e |
| 2022 | 100 | 21.2 kBtu/ft² | 90 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
- 755 Southern Boulevard
- City
- New York City
- State
- New York
- ZIP
- 10455
- Coordinates
- 40.81523, -73.89736
Within ~1 km
Nearby benchmarked buildings
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- MCKINLEYscore 99
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Non-Refrigerated Warehouse · 269,776 sq ft
See also: most efficient in New York City · biggest emitters
How does Longwood: 755 Southern Boulevard 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. Longwood: 755 Southern Boulevard'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 18.9 kBtu/ft² is about 75% 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 2.0 kgCO₂e/ft² is about 62% below the group average of 5.2 kgCO₂e/ft².
At 54,636 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1908, 44 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 Longwood: 755 Southern Boulevard's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Longwood: 755 Southern Boulevard, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 21.2 kBtu/ft² (2022) to 18.9 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 90 tCO₂e to 107 tCO₂e over the same span (up 20%).
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. Longwood: 755 Southern Boulevard's 18.9 kBtu/ft² across 54,636 sq ft works out to about 1 billion Btu (303 MWh-equivalent) in 2024. Its source EUI of 47.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 248,738 kWh of electricity, 1,840 therms of natural gas and 3,962 thousand gallons of water for the year.
Which law requires Longwood: 755 Southern Boulevard to report its energy use?
Longwood: 755 Southern Boulevard 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:15565290:2024). 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
- 2355 Beaumont Ave· 54,635 sq ft
- 6645 Owners Corp.· 54,635 sq ft · score 70 (B)
- OneVesta: 2830 Briggs Ave· 54,634 sq ft · score 100 (A)
- DEPM 1042 - 130 Jane Street· 54,634 sq ft · score 56 (C)
- Coney 1261 Schenectady· 54,600 sq ft
- Pinnacle - 877 Bay Ridge Ave· 54,600 sq ft · score 29 (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 Longwood: 755 Southern Boulevard's energy grade?
Longwood: 755 Southern Boulevard 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 Longwood: 755 Southern Boulevard use?
Its 2024 site energy-use intensity was 18.9 kBtu/ft² (47.0 kBtu/ft² source) across 54,636 sq ft, including 248,738 kWh of electricity and 1,840 therms of natural gas.
What are Longwood: 755 Southern Boulevard's carbon emissions?
Longwood: 755 Southern Boulevard reported 107 tCO₂e of greenhouse-gas emissions (2.0 kgCO₂e/ft²) for 2024.
Where is Longwood: 755 Southern Boulevard?
Longwood: 755 Southern Boulevard is in New York City, New York 10455. Its coordinates are 40.81523, -73.89736 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Longwood: 755 Southern Boulevard and when was it built?
Longwood: 755 Southern Boulevard has 54,636 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1908 as its year built. It is classed as multifamily housing.
Is Longwood: 755 Southern Boulevard 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, “Longwood: 755 Southern Boulevard, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/longwood-755-southern-boulevard-c6ede8b8 (data as of October 2, 2026).