340 East 51st Street
Multifamily Housing in New York City, NY · 10022
At a glance
340 East 51st Street is a 88,658-square-foot multifamily housing building in New York City, New York, built in 1965.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 537,070 kWh |
| Water use | 3,835 kgal |
| Gross floor area | 88,658 sq ft |
| Source record | nyc:4926091:2023 |
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
- 340 East 51st Street
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.75495, -73.96676
Within ~1 km
Nearby benchmarked buildings
- 345 Park Ave LPscore 47
Office · 1,783,232 sq ft
Office · 1,682,110 sq ft
- 399 Park Avenuescore 69
Office · 1,671,941 sq ft
- Waldorf Astoria Hotelscore 97
Hotel · 1,666,763 sq ft
- 919 Third Avenuescore —
Other - Technology/Science · 1,433,078 sq ft
- CHILD - 919 3 AVENUEscore —
Other - Technology/Science · 1,424,082 sq ft
See also: most efficient in New York City · biggest emitters
How does 340 East 51st 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.
At 88,658 sq ft, it is about 12% below the average floor area of 100,951 sq ft for those buildings. It was built in 1965, 13 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.
Which law requires 340 East 51st Street to report its energy use?
340 East 51st 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:4926091:2023). 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
- M Rapaport: 2710 Webb Ave· 88,655 sq ft · score 83 (B)
- Brown - Building 2· 88,650 sq ft · EUI 5.7 kBtu/ft²
- Orsid - 86-29 155 Avenue (child)· 88,647 sq ft · score 23 (D)
- Nelson Mgmt - Bryant Arms Apartments· 88,627 sq ft · score 71 (B)
- CYPRESS HILLS - Bldg 3· 88,600 sq ft · EUI 21.9 kBtu/ft²
- 320 Sterling Street· 88,580 sq ft
- 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 340 East 51st Street's energy grade?
340 East 51st Street did not report an ENERGY STAR score in its 2023 disclosure.
How much energy does 340 East 51st Street use?
No energy-use intensity was reported for 2023.
What are 340 East 51st Street's carbon emissions?
No greenhouse-gas emissions figure was reported for 2023.
Where is 340 East 51st Street?
340 East 51st Street is in New York City, New York 10022. Its coordinates are 40.75495, -73.96676 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 340 East 51st Street and when was it built?
340 East 51st Street has 88,658 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is 340 East 51st 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).
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, “340 East 51st Street, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/340-east-51st-street-60311c82 (data as of October 2, 2026).