JC Dwight 345 86th Street
Multifamily Housing in New York City, NY · 345 86th Street · 11209
At a glance
JC Dwight 345 86th Street is a 84,906-square-foot multifamily housing building in New York City, New York, built in 1929. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 84.2 kBtu/ft² and 433 tCO₂e of greenhouse-gas emissions. That score is higher than 58% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 76 (band B) |
| Site EUI | 84.2 kBtu/ft² |
| Source EUI | 108.1 kBtu/ft² |
| GHG emissions | 433 tCO₂e |
| GHG intensity | 5.1 kgCO₂e/ft² |
| Electricity | 279,093 kWh |
| Natural gas | 61,992 therms |
| Water use | 5,573 kgal |
| Gross floor area | 84,906 sq ft |
| Source record | nyc:2794570:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 76 | +5 | 84.2 kBtu/ft² | 433 tCO₂e |
| 2022 | 71 | 95.2 kBtu/ft² | 464 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
- 345 86th Street
- City
- New York City
- State
- New York
- ZIP
- 11209
- Coordinates
- 40.62314, -74.02970
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does JC Dwight 345 86th Street 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. JC Dwight 345 86th Street's ENERGY STAR score of 76 compares with an average of 63 across the 22,829 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 84.2 kBtu/ft² is about 12% 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 5.1 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 84,906 sq ft, it is about 16% below the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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 JC Dwight 345 86th Street's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for JC Dwight 345 86th Street, covering report years 2022–2023. Its ENERGY STAR score went from 71 in 2022 to 76 in 2023 (+5 points). Site EUI moved from 95.2 kBtu/ft² (2022) to 84.2 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 464 tCO₂e to 433 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 falls in band B — above median (70–84). 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. JC Dwight 345 86th Street's 84.2 kBtu/ft² across 84,906 sq ft works out to about 7.1 billion Btu (2,095 MWh-equivalent) in 2023. Its source EUI of 108.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 279,093 kWh of electricity, 61,992 therms of natural gas and 5,573 thousand gallons of water for the year.
Which law requires JC Dwight 345 86th Street to report its energy use?
JC Dwight 345 86th Street 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 2023 disclosure (source record nyc:2794570:2023). 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
- Catherine Sheridan Residence II (Bishop Valero)· 84,900 sq ft · score 95 (A)
- St. James Terrace - 2520 Jerome Ave· 84,899 sq ft · score 84 (B)
- The Board of Managers of The Symon Condominium (76 Schermerhorn St)· 84,894 sq ft · score 77 (B)
- Columbia 160 Apartments Corp.· 84,890 sq ft · score 77 (B)
- 40-40 75th Street - 43784· 84,876 sq ft · score 96 (A)
- PAN AM : 103 EAST· 84,872 sq ft · score 48 (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 JC Dwight 345 86th Street's energy grade?
JC Dwight 345 86th Street scores 76 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does JC Dwight 345 86th Street use?
Its 2023 site energy-use intensity was 84.2 kBtu/ft² (108.1 kBtu/ft² source) across 84,906 sq ft, including 279,093 kWh of electricity and 61,992 therms of natural gas.
What are JC Dwight 345 86th Street's carbon emissions?
JC Dwight 345 86th Street reported 433 tCO₂e of greenhouse-gas emissions (5.1 kgCO₂e/ft²) for 2023.
Where is JC Dwight 345 86th Street?
JC Dwight 345 86th Street is in New York City, New York 11209. Its coordinates are 40.62314, -74.02970 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is JC Dwight 345 86th Street and when was it built?
JC Dwight 345 86th Street has 84,906 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is JC Dwight 345 86th Street covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “JC Dwight 345 86th Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/jc-dwight-345-86th-street-2338bb3f (data as of October 2, 2026).