645 Realty LLC
Multifamily Housing in New York City, NY · 645 Ocean Parkway · 11230
At a glance
645 Realty LLC is a 55,680-square-foot multifamily housing building at 645 Ocean Parkway in New York City, New York, built in 1930. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 14.1 kBtu/ft² and 58 tCO₂e of greenhouse-gas emissions. That score is higher than 90% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 14.1 kBtu/ft² |
| Source EUI | 30.7 kBtu/ft² |
| GHG emissions | 58 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 148,910 kWh |
| Water use | 4,178 kgal |
| Gross floor area | 55,680 sq ft |
| Source record | nyc:2797757:2022 |
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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 645 Ocean Parkway
- City
- New York City
- State
- New York
- ZIP
- 11230
- Coordinates
- 40.63262, -73.97206
Within ~1 km
Nearby benchmarked buildings
- 886 DAHILL ROADscore 100
Multifamily Housing · 415,154 sq ft
- 103-00 Foster Avescore 56
Mixed Use Property · 401,014 sq ft
- 886 Dahill Roadscore 100
Multifamily Housing · 351,667 sq ft
Non-Refrigerated Warehouse · 248,468 sq ft
Multifamily Housing · 237,540 sq ft
- 570 WESTMINSTER RD.score 77
Multifamily Housing · 222,000 sq ft
See also: most efficient in New York City · biggest emitters
How does 645 Realty LLC 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. 645 Realty LLC's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 14.1 kBtu/ft² is about 81% below 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 1.0 kgCO₂e/ft² is about 81% below the group average of 5.2 kgCO₂e/ft².
At 55,680 sq ft, it is about 45% below the average floor area of 100,951 sq ft for those buildings. It was built in 1930, 22 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.
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 645 Realty LLC's 14.1 kBtu/ft² across 55,680 sq ft works out to about 0.8 billion Btu (230 MWh-equivalent) in 2022. Its source EUI of 30.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 148,910 kWh of electricity and 4,178 thousand gallons of water for the year.
Which law requires 645 Realty LLC to report its energy use?
645 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 2022 disclosure (source record nyc:2797757:2022). 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
- 2222 East 18th Street· 55,674 sq ft · score 70 (B)
- 608-610 West 139th Street· 55,670 sq ft · score 67 (C)
- F & G Group, LLC· 55,650 sq ft · score 60 (C)
- Chestnut - 2851-57 Valentine Avenue· 55,650 sq ft · score 42 (D)
- Lebanon West Farms 1 LL84 submission· 55,649 sq ft · score 65 (C)
- U.H.O: 1660 HOE AVENUE· 55,640 sq ft · score 68 (C)
- 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 645 Realty LLC's energy grade?
645 Realty LLC scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 645 Realty LLC use?
Its 2022 site energy-use intensity was 14.1 kBtu/ft² (30.7 kBtu/ft² source) across 55,680 sq ft, including 148,910 kWh of electricity.
What are 645 Realty LLC's carbon emissions?
645 Realty LLC reported 58 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2022.
Where is 645 Realty LLC?
645 Realty LLC is at 645 Ocean Parkway, in New York City, New York 11230. Its coordinates are 40.63262, -73.97206 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 645 Realty LLC and when was it built?
645 Realty LLC has 55,680 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 645 Realty LLC covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “645 Realty LLC, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/645-realty-llc-34ad45d7 (data as of October 2, 2026).