423 East 90th Street
Multifamily Housing in New York City, NY · 10128
At a glance
423 East 90th Street is a 31,044-square-foot multifamily housing building in New York City, New York, built in 1988. 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 64.3 kBtu/ft² and 143 tCO₂e of greenhouse-gas emissions. That score is higher than 71% 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 | 86 (band A) |
| Site EUI | 64.3 kBtu/ft² |
| Source EUI | 100.9 kBtu/ft² |
| GHG emissions | 143 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 173,613 kWh |
| Natural gas | 14,028 therms |
| Water use | 1,277 kgal |
| Gross floor area | 31,044 sq ft |
| Source record | nyc:6678784:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | -2 | 64.3 kBtu/ft² | 143 tCO₂e |
| 2023 | 88 | +5 | 61.8 kBtu/ft² | 132 tCO₂e |
| 2022 | 83 | 71.7 kBtu/ft² | 135 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
- 423 East 90th Street
- City
- New York City
- State
- New York
- ZIP
- 10128
- Coordinates
- 40.77915, -73.94681
Within ~1 km
Nearby benchmarked buildings
- WASHINGTON Bldgs 5-10score —
Multifamily Housing · 1,404,388 sq ft
- WASHINGTONscore 30
Multifamily Housing · 1,404,388 sq ft
Multifamily Housing · 1,384,883 sq ft
- Benchmarking Group - 7score 98
Hospital (General Medical & Surgical) · 1,068,030 sq ft
- River Crossing Owner LLC (2172)score 74
Multifamily Housing · 986,395 sq ft
- NORMANDIE COURTscore 7
Multifamily Housing · 969,264 sq ft
See also: most efficient in New York City · biggest emitters
How does 423 East 90th 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. 423 East 90th Street's ENERGY STAR score of 86 compares with an average of 63 across the 22,829 that report a score; it scores higher than 71% of them and lower than 28%. Its site EUI of 64.3 kBtu/ft² is about 14% 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 4.6 kgCO₂e/ft² is about 12% below the group average of 5.2 kgCO₂e/ft².
At 31,044 sq ft, it is about 69% below the average floor area of 100,951 sq ft for those buildings. It was built in 1988, 36 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 423 East 90th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 423 East 90th Street, covering report years 2022–2024. Its ENERGY STAR score went from 83 in 2022 to 86 in 2024 (+3 points); its best year on file was 2023, at 88. Site EUI moved from 71.7 kBtu/ft² (2022) to 64.3 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 135 tCO₂e to 143 tCO₂e over the same span (up 6%).
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. 423 East 90th Street's 64.3 kBtu/ft² across 31,044 sq ft works out to about 2 billion Btu (585 MWh-equivalent) in 2024. Its source EUI of 100.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 173,613 kWh of electricity, 14,028 therms of natural gas and 1,277 thousand gallons of water for the year.
Which law requires 423 East 90th Street to report its energy use?
423 East 90th 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 2024 disclosure (source record nyc:6678784:2024). 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
- 615-617 West 113th Street· 31,041 sq ft · score 93 (A)
- 364 West 117th Street (Child)· 31,037 sq ft · score 80 (B)
- M&R Management: 2175 E 15th St· 31,030 sq ft · EUI 85.0 kBtu/ft²
- Camber - 107 West 109th Street· 31,026 sq ft · score 21 (D)
- 107 W 109 Street· 31,026 sq ft
- 228 East 3rd St. (LESPMHA II, LP.)· 31,025 sq ft · score 55 (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 423 East 90th Street's energy grade?
423 East 90th Street 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 423 East 90th Street use?
Its 2024 site energy-use intensity was 64.3 kBtu/ft² (100.9 kBtu/ft² source) across 31,044 sq ft, including 173,613 kWh of electricity and 14,028 therms of natural gas.
What are 423 East 90th Street's carbon emissions?
423 East 90th Street reported 143 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 423 East 90th Street?
423 East 90th Street is in New York City, New York 10128. Its coordinates are 40.77915, -73.94681 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 423 East 90th Street and when was it built?
423 East 90th Street has 31,044 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as multifamily housing.
Is 423 East 90th Street 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, “423 East 90th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/423-east-90th-street-3eb57690 (data as of October 2, 2026).