Longwood: 775 Southern Boulevard
Multifamily Housing in New York City, NY · 775 Southern Boulevard · 10455
At a glance
Longwood: 775 Southern Boulevard is a 38,400-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 9 out of 100 (grade D), a site energy-use intensity of 166.8 kBtu/ft² and 383 tCO₂e of greenhouse-gas emissions. That score is higher than 7% 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 | 9 (band D) |
| Site EUI | 166.8 kBtu/ft² |
| Source EUI | 206.8 kBtu/ft² |
| GHG emissions | 383 tCO₂e |
| GHG intensity | 10.0 kgCO₂e/ft² |
| Electricity | 203,301 kWh |
| Natural gas | 57,114 therms |
| Gross floor area | 38,400 sq ft |
| Source record | nyc:15565276:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 9 | -9 | 166.8 kBtu/ft² | 383 tCO₂e |
| 2023 | 18 | +10 | 145.3 kBtu/ft² | 334 tCO₂e |
| 2022 | 8 | 176.1 kBtu/ft² | 382 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
- 775 Southern Boulevard
- City
- New York City
- State
- New York
- ZIP
- 10455
- Coordinates
- 40.81563, -73.89694
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Longwood: 775 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: 775 Southern Boulevard's ENERGY STAR score of 9 compares with an average of 63 across the 22,829 that report a score; it scores higher than 7% of them and lower than 93%. Its site EUI of 166.8 kBtu/ft² is about 123% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 10.0 kgCO₂e/ft² is about twice the group average of 5.2 kgCO₂e/ft².
At 38,400 sq ft, it is about 62% below 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: 775 Southern Boulevard's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Longwood: 775 Southern Boulevard, covering report years 2022–2024. Its ENERGY STAR score went from 8 in 2022 to 9 in 2024 (+1 points); its best year on file was 2023, at 18. Site EUI moved from 176.1 kBtu/ft² (2022) to 166.8 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 382 tCO₂e to 383 tCO₂e over the same span (up 0%).
What does an ENERGY STAR score of 9 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 9 means the building performs better than about 9% of its national peers. BuildingCensus bands the score into report-card grades; 9 falls in band D — lowest band (1–54). It sits 66 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. Longwood: 775 Southern Boulevard's 166.8 kBtu/ft² across 38,400 sq ft works out to about 6.4 billion Btu (1,877 MWh-equivalent) in 2024. Its source EUI of 206.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 203,301 kWh of electricity and 57,114 therms of natural gas for the year.
Which law requires Longwood: 775 Southern Boulevard to report its energy use?
Longwood: 775 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:15565276:2024). 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
- Prospect Management - 2395 Palisades Ave· 38,399 sq ft · score 93 (A)
- 2395 Palisade Avenue· 38,399 sq ft · score 20 (D)
- John Psaras: 302 Marine Ave· 38,396 sq ft · score 38 (D)
- Glenwood - 139-21 86 Avenue· 38,394 sq ft · score 58 (C)
- 1917 ADAM CLAYTON POWELL OWNER LLC / 7th Ave· 38,392 sq ft · score 1 (D)
- 2322 Adam C Powell Blvd· 38,386 sq ft · score 46 (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: 775 Southern Boulevard's energy grade?
Longwood: 775 Southern Boulevard scores 9 out of 100 on ENERGY STAR — band D, lowest band (1–54) — 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: 775 Southern Boulevard use?
Its 2024 site energy-use intensity was 166.8 kBtu/ft² (206.8 kBtu/ft² source) across 38,400 sq ft, including 203,301 kWh of electricity and 57,114 therms of natural gas.
What are Longwood: 775 Southern Boulevard's carbon emissions?
Longwood: 775 Southern Boulevard reported 383 tCO₂e of greenhouse-gas emissions (10.0 kgCO₂e/ft²) for 2024.
Where is Longwood: 775 Southern Boulevard?
Longwood: 775 Southern Boulevard is in New York City, New York 10455. Its coordinates are 40.81563, -73.89694 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Longwood: 775 Southern Boulevard and when was it built?
Longwood: 775 Southern Boulevard has 38,400 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: 775 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: 775 Southern Boulevard, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/longwood-775-southern-boulevard-79719b5c (data as of October 2, 2026).