90 Downing Street LP
Multifamily Housing in New York City, NY · 88-90 Downing Street · 11238
At a glance
90 Downing Street LP is a 37,100-square-foot multifamily housing building at 88-90 Downing Street in New York City, New York, built in 1930. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 91.0 kBtu/ft² and 207 tCO₂e of greenhouse-gas emissions. That score is higher than 45% 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 | 65 (band C) |
| Site EUI | 91.0 kBtu/ft² |
| Source EUI | 116.7 kBtu/ft² |
| GHG emissions | 207 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 131,240 kWh |
| Natural gas | 29,290 therms |
| Water use | 2,555 kgal |
| Gross floor area | 37,100 sq ft |
| Source record | nyc:7524929:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | +4 | 91.0 kBtu/ft² | 207 tCO₂e |
| 2023 | 61 | +1 | 93.1 kBtu/ft² | 207 tCO₂e |
| 2022 | 60 | 100.2 kBtu/ft² | 212 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
- 88-90 Downing Street
- City
- New York City
- State
- New York
- ZIP
- 11238
- Coordinates
- 40.68339, -73.96084
Within ~1 km
Nearby benchmarked buildings
- Original Campusscore —
College/University · 1,068,079 sq ft
- LAFAYETTEscore 37
Multifamily Housing · 995,000 sq ft
- Clinton Hill Southscore 59
Multifamily Housing · 677,534 sq ft
- 470 Vanderbilt Avenuescore 89
Office · 635,931 sq ft
Multifamily Housing · 448,000 sq ft
- 21 St James Place - 40656score 29
Multifamily Housing · 409,079 sq ft
See also: most efficient in New York City · biggest emitters
How does 90 Downing Street LP 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. 90 Downing Street LP's ENERGY STAR score of 65 compares with an average of 63 across the 22,829 that report a score; it scores higher than 45% of them and lower than 54%. Its site EUI of 91.0 kBtu/ft² is about 21% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 37,100 sq ft, it is about 63% 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.
How has 90 Downing Street LP's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 90 Downing Street LP, covering report years 2022–2024. Its ENERGY STAR score went from 60 in 2022 to 65 in 2024 (+5 points). Site EUI moved from 100.2 kBtu/ft² (2022) to 91.0 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 212 tCO₂e to 207 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 points below 75, the threshold for ENERGY STAR certification. 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. 90 Downing Street LP's 91.0 kBtu/ft² across 37,100 sq ft works out to about 3.4 billion Btu (989 MWh-equivalent) in 2024. Its source EUI of 116.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 131,240 kWh of electricity, 29,290 therms of natural gas and 2,555 thousand gallons of water for the year.
Which law requires 90 Downing Street LP to report its energy use?
90 Downing Street LP 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:7524929:2024). 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
- A02160 - 7 East 85th Street Tenants Corp· 37,099 sq ft · score 64 (C)
- NB:7 East 85th Street· 37,099 sq ft · score 59 (C)
- 54 East 176th Street· 37,090 sq ft · score 40 (D)
- The Whitman Condominium - 21 East 26th Street· 37,080 sq ft · EUI 46.5 kBtu/ft²
- Diamond: 1304 Grand Concourse· 37,076 sq ft · score 62 (C)
- Sunlight Barclay Tower : 144-69 BARCLAY AVENUE· 37,071 sq ft · score 100 (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 90 Downing Street LP's energy grade?
90 Downing Street LP scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 90 Downing Street LP use?
Its 2024 site energy-use intensity was 91.0 kBtu/ft² (116.7 kBtu/ft² source) across 37,100 sq ft, including 131,240 kWh of electricity and 29,290 therms of natural gas.
What are 90 Downing Street LP's carbon emissions?
90 Downing Street LP reported 207 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2024.
Where is 90 Downing Street LP?
90 Downing Street LP is at 88-90 Downing Street, in New York City, New York 11238. Its coordinates are 40.68339, -73.96084 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 90 Downing Street LP and when was it built?
90 Downing Street LP has 37,100 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is 90 Downing Street LP 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, “90 Downing Street LP, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/90-downing-street-lp-fd86d8a9 (data as of October 2, 2026).