CJN Realty LLC
Office in New York City, NY · 855 Brush Avenue · 10465
At a glance
CJN Realty LLC is a 30,000-square-foot office building at 855 Brush Avenue in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 56.5 kBtu/ft² and 143 tCO₂e of greenhouse-gas emissions. That score is higher than 65% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 86 (band A) |
| Site EUI | 56.5 kBtu/ft² |
| Source EUI | 109.3 kBtu/ft² |
| GHG emissions | 143 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 250,651 kWh |
| Natural gas | 8,412 therms |
| Water use | 201 kgal |
| Gross floor area | 30,000 sq ft |
| Source record | nyc:7093998:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | -7 | 56.5 kBtu/ft² | 143 tCO₂e |
| 2023 | 93 | -1 | 39.1 kBtu/ft² | 106 tCO₂e |
| 2022 | 94 | 35.6 kBtu/ft² | 81 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
- 855 Brush Avenue
- City
- New York City
- State
- New York
- ZIP
- 10465
- Coordinates
- 40.82512, -73.83944
Within ~1 km
Nearby benchmarked buildings
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- 2505 Bruckner Blvdscore 13
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- Castle Hill - Bldgs 9-10score —
Multifamily Housing · 298,600 sq ft
- Brush Avescore 86
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Non-Refrigerated Warehouse · 214,000 sq ft
See also: most efficient in New York City · biggest emitters
How does CJN Realty LLC compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. CJN Realty LLC's ENERGY STAR score of 86 compares with an average of 72 across the 2,519 that report a score; it scores higher than 65% of them and lower than 33%. Its site EUI of 56.5 kBtu/ft² is about 12% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.8 kgCO₂e/ft² is about 18% below the group average of 5.8 kgCO₂e/ft².
At 30,000 sq ft, it is about 85% below the average floor area of 205,440 sq ft for those buildings. It was built in 2003, 63 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has CJN Realty LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for CJN Realty LLC, covering report years 2022–2024. Its ENERGY STAR score went from 94 in 2022 to 86 in 2024 (-8 points); its best year on file was 2022, at 94. Site EUI moved from 35.6 kBtu/ft² (2022) to 56.5 kBtu/ft² (2024), an 59% increase. Reported emissions went from 81 tCO₂e to 143 tCO₂e over the same span (up 78%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. CJN Realty LLC's 56.5 kBtu/ft² across 30,000 sq ft works out to about 1.7 billion Btu (497 MWh-equivalent) in 2024. Its source EUI of 109.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 250,651 kWh of electricity, 8,412 therms of natural gas and 201 thousand gallons of water for the year.
Which law requires CJN Realty LLC to report its energy use?
CJN Realty LLC 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:7093998:2024). 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.
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- Hong wah Realty Corp.· 29,940 sq ft · score 33 (D)
- NYPD_9033_Facilities Management Division· 29,940 sq ft · score 54 (D)
- 544 West 27th Street· 29,932 sq ft · score 97 (A)
- Fulton Street Owners LLC· 29,904 sq ft · score 100 (A)
- Office buildings in New York City· 3,384 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 CJN Realty LLC's energy grade?
CJN Realty LLC scores 86 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 CJN Realty LLC use?
Its 2024 site energy-use intensity was 56.5 kBtu/ft² (109.3 kBtu/ft² source) across 30,000 sq ft, including 250,651 kWh of electricity and 8,412 therms of natural gas.
What are CJN Realty LLC's carbon emissions?
CJN Realty LLC reported 143 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024.
Where is CJN Realty LLC?
CJN Realty LLC is at 855 Brush Avenue, in New York City, New York 10465. Its coordinates are 40.82512, -73.83944 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is CJN Realty LLC and when was it built?
CJN Realty LLC has 30,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as office.
Is CJN Realty LLC 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, “CJN Realty LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/cjn-realty-llc-98a234d7 (data as of October 2, 2026).