Longacre House - 19278
Multifamily Housing in New York City, NY · 305 W. 50th Street · 10019
At a glance
Longacre House - 19278 is a 270,453-square-foot multifamily housing building at 305 W. 50th Street in New York City, New York, built in 2000. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 62 out of 100 (grade C), a site energy-use intensity of 74.1 kBtu/ft² and 1,423 tCO₂e of greenhouse-gas emissions. That score is higher than 42% 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 | 62 (band C) |
| Site EUI | 74.1 kBtu/ft² |
| Source EUI | 115.2 kBtu/ft² |
| GHG emissions | 1,423 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 1,695,256 kWh |
| Natural gas | 142,599 therms |
| Water use | 7,883 kgal |
| Gross floor area | 270,453 sq ft |
| Source record | nyc:3126933:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 62 | +8 | 74.1 kBtu/ft² | 1,423 tCO₂e |
| 2023 | 54 | +3 | 76.4 kBtu/ft² | 1,443 tCO₂e |
| 2022 | 51 | 83.5 kBtu/ft² | 1,425 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
- 305 W. 50th Street
- City
- New York City
- State
- New York
- ZIP
- 10019
- Coordinates
- 40.76246, -73.98648
Within ~1 km
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How does Longacre House - 19278 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. Longacre House - 19278's ENERGY STAR score of 62 compares with an average of 63 across the 22,829 that report a score; it scores higher than 42% of them and lower than 57%. Its site EUI of 74.1 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 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 270,453 sq ft, it is about 168% above the average floor area of 100,951 sq ft for those buildings. It was built in 2000, 48 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 Longacre House - 19278's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Longacre House - 19278, covering report years 2022–2024. Its ENERGY STAR score went from 51 in 2022 to 62 in 2024 (+11 points). Site EUI moved from 83.5 kBtu/ft² (2022) to 74.1 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 1,425 tCO₂e to 1,423 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 62 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 62 means the building performs better than about 62% of its national peers. BuildingCensus bands the score into report-card grades; 62 falls in band C — below median (55–69). It sits 13 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. Longacre House - 19278's 74.1 kBtu/ft² across 270,453 sq ft works out to about 20 billion Btu (5,873 MWh-equivalent) in 2024. Its source EUI of 115.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,695,256 kWh of electricity, 142,599 therms of natural gas and 7,883 thousand gallons of water for the year.
Which law requires Longacre House - 19278 to report its energy use?
Longacre House - 19278 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:3126933:2024). 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
- Beech Hills Corp 3 PARENT· 270,064 sq ft · score 64 (C)
- 3466 Fish Avenue - Section IV· 270,039 sq ft · score 71 (B)
- The Strand Condominium (500 W 43 Street)· 269,981 sq ft · score 27 (D)
- Newswalk at Dean Street· 269,934 sq ft · score 43 (D)
- Olnick - Second Lenox Terrace· 269,845 sq ft · score 69 (C)
- The Sofia Condominium· 269,800 sq ft · score 89 (A)
- 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 Longacre House - 19278's energy grade?
Longacre House - 19278 scores 62 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 Longacre House - 19278 use?
Its 2024 site energy-use intensity was 74.1 kBtu/ft² (115.2 kBtu/ft² source) across 270,453 sq ft, including 1,695,256 kWh of electricity and 142,599 therms of natural gas.
What are Longacre House - 19278's carbon emissions?
Longacre House - 19278 reported 1,423 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is Longacre House - 19278?
Longacre House - 19278 is at 305 W. 50th Street, in New York City, New York 10019. Its coordinates are 40.76246, -73.98648 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Longacre House - 19278 and when was it built?
Longacre House - 19278 has 270,453 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as multifamily housing.
Is Longacre House - 19278 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, “Longacre House - 19278, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/longacre-house-19278-a8851503 (data as of October 2, 2026).