400 Avenue U
Multifamily Housing in New York City, NY · 11223
At a glance
400 Avenue U is a 123,377-square-foot multifamily housing building in New York City, New York, built in 2009. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 46.1 kBtu/ft² and 429 tCO₂e of greenhouse-gas emissions. That score is higher than 70% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 46.1 kBtu/ft² |
| Source EUI | 85.2 kBtu/ft² |
| GHG emissions | 429 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 704,619 kWh |
| Natural gas | 28,734 therms |
| Water use | 2,190 kgal |
| Gross floor area | 123,377 sq ft |
| Source record | nyc:3999704:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | -4 | 46.1 kBtu/ft² | 429 tCO₂e |
| 2023 | 89 | -5 | 43.2 kBtu/ft² | 387 tCO₂e |
| 2022 | 94 | 42.9 kBtu/ft² | 328 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 400 Avenue U
- City
- New York City
- State
- New York
- ZIP
- 11223
- Coordinates
- 40.59740, -73.96931
Within ~1 km
Nearby benchmarked buildings
- Fountain Terrace Owners Corpscore 100
Multifamily Housing · 993,892 sq ft
K-12 School · 237,223 sq ft
- Magen David - 2130 McDonaldscore 41
K-12 School · 221,704 sq ft
- 2400 East 3rd Streetscore 99
Multifamily Housing · 182,711 sq ft
Multifamily Housing · 156,610 sq ft
K-12 School · 145,200 sq ft
See also: most efficient in New York City · biggest emitters
How does 400 Avenue U 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. 400 Avenue U's ENERGY STAR score of 85 compares with an average of 63 across the 22,829 that report a score; it scores higher than 70% of them and lower than 29%. Its site EUI of 46.1 kBtu/ft² is about 38% 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 3.8 kgCO₂e/ft² is about 28% below the group average of 5.2 kgCO₂e/ft².
At 123,377 sq ft, it is about 22% above the average floor area of 100,951 sq ft for those buildings. It was built in 2009, 57 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.
How has 400 Avenue U's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 400 Avenue U, covering report years 2022–2024. Its ENERGY STAR score went from 94 in 2022 to 85 in 2024 (-9 points); its best year on file was 2022, at 94. Site EUI moved from 42.9 kBtu/ft² (2022) to 46.1 kBtu/ft² (2024), an 7% increase. Reported emissions went from 328 tCO₂e to 429 tCO₂e over the same span (up 31%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 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. 400 Avenue U's 46.1 kBtu/ft² across 123,377 sq ft works out to about 5.7 billion Btu (1,667 MWh-equivalent) in 2024. Its source EUI of 85.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 704,619 kWh of electricity, 28,734 therms of natural gas and 2,190 thousand gallons of water for the year.
Which law requires 400 Avenue U to report its energy use?
400 Avenue U 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:3999704:2024). 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
- Impact: 3165 Nostrand Ave· 123,371 sq ft · score 63 (C)
- JC Dwight - 35 East 84th Street· 123,329 sq ft · EUI 67.2 kBtu/ft²
- Pinnacle - 3647 Broadway· 123,314 sq ft · score 55 (C)
- Impact: 144-55 Melbourne Ave· 123,277 sq ft · score 51 (D)
- RFC 31 STREET I LLC THE ROWAN CONDOMINIUM· 123,274 sq ft · score 5 (D)
- 855 East 7th Street· 123,271 sq ft · score 92 (A)
- 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 400 Avenue U's energy grade?
400 Avenue U scores 85 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 400 Avenue U use?
Its 2024 site energy-use intensity was 46.1 kBtu/ft² (85.2 kBtu/ft² source) across 123,377 sq ft, including 704,619 kWh of electricity and 28,734 therms of natural gas.
What are 400 Avenue U's carbon emissions?
400 Avenue U reported 429 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is 400 Avenue U?
400 Avenue U is in New York City, New York 11223. Its coordinates are 40.59740, -73.96931 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 400 Avenue U and when was it built?
400 Avenue U has 123,377 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as multifamily housing.
Is 400 Avenue U 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).
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, “400 Avenue U, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/400-avenue-u-1d52b096 (data as of October 2, 2026).