Longwood: 940 Simpson St
Multifamily Housing in New York City, NY · 940 Simpson Street · 10459
At a glance
Longwood: 940 Simpson St is a 56,350-square-foot multifamily housing building at 940 Simpson Street in New York City, New York, built in 1915. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 79.2 kBtu/ft² and 292 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 79.2 kBtu/ft² |
| Source EUI | 110.7 kBtu/ft² |
| GHG emissions | 292 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 259,742 kWh |
| Natural gas | 35,756 therms |
| Water use | 4,722 kgal |
| Gross floor area | 56,350 sq ft |
| Source record | nyc:15565227:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 79.2 kBtu/ft² | 292 tCO₂e | |
| 2023 | 84 | +3 | 69.1 kBtu/ft² | 254 tCO₂e |
| 2022 | 81 | 75.4 kBtu/ft² | 254 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
- 940 Simpson Street
- City
- New York City
- State
- New York
- ZIP
- 10459
- Coordinates
- 40.82108, -73.89283
Within ~1 km
Nearby benchmarked buildings
- 975 - 1000 Simpson Stscore —
Multifamily Housing · 783,108 sq ft
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Multifamily Housing · 303,967 sq ft
K-12 School · 224,575 sq ft
- WEST FARMS ROAD REHABscore 53
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Multifamily Housing · 216,458 sq ft
See also: most efficient in New York City · biggest emitters
How does Longwood: 940 Simpson St 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. Its site EUI of 79.2 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.2 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 56,350 sq ft, it is about 44% below the average floor area of 100,951 sq ft for those buildings. It was built in 1915, 37 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: 940 Simpson St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Longwood: 940 Simpson St, covering report years 2022–2024. Its ENERGY STAR score went from 81 in 2022 to 84 in 2023 (+3 points). Site EUI moved from 75.4 kBtu/ft² (2022) to 79.2 kBtu/ft² (2024), an 5% increase. Reported emissions went from 254 tCO₂e to 292 tCO₂e over the same span (up 15%).
What does a site EUI of 79.2 kBtu/ft² mean?
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: 940 Simpson St's 79.2 kBtu/ft² across 56,350 sq ft works out to about 4.5 billion Btu (1,308 MWh-equivalent) in 2024. Its source EUI of 110.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 259,742 kWh of electricity, 35,756 therms of natural gas and 4,722 thousand gallons of water for the year.
Which law requires Longwood: 940 Simpson St to report its energy use?
Longwood: 940 Simpson St 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:15565227:2024). 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
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- 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: 940 Simpson St's energy grade?
Longwood: 940 Simpson St did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 79.2 kBtu/ft².
How much energy does Longwood: 940 Simpson St use?
Its 2024 site energy-use intensity was 79.2 kBtu/ft² (110.7 kBtu/ft² source) across 56,350 sq ft, including 259,742 kWh of electricity and 35,756 therms of natural gas.
What are Longwood: 940 Simpson St's carbon emissions?
Longwood: 940 Simpson St reported 292 tCO₂e of greenhouse-gas emissions (5.2 kgCO₂e/ft²) for 2024.
Where is Longwood: 940 Simpson St?
Longwood: 940 Simpson St is at 940 Simpson Street, in New York City, New York 10459. Its coordinates are 40.82108, -73.89283 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Longwood: 940 Simpson St and when was it built?
Longwood: 940 Simpson St has 56,350 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1915 as its year built. It is classed as multifamily housing.
Is Longwood: 940 Simpson St 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: 940 Simpson St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/longwood-940-simpson-st-6d76fb65 (data as of October 2, 2026).