309 West 99
Multifamily Housing in New York City, NY · 309 West 99th Street · 10025
At a glance
309 West 99 is a 48,099-square-foot multifamily housing building at 309 West 99th Street in New York City, New York, built in 1920. It is listed in the 2024 Energy and Water Data Disclosure disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2023, when it scored 77 out of 100 on ENERGY STAR with a site EUI of 57.4 kBtu/ft².
No energy data reported for 2024
309 West 99 appears in the 2024 Energy and Water Data Disclosure disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 48,099 sq ft · Built 1920
Source record nyc:20634263:2024
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | — | |
| 2023 | 77 | +13 | 57.4 kBtu/ft² | 186 tCO₂e |
| 2022 | 64 | 73.7 kBtu/ft² | 210 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.
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Location
- Address
- 309 West 99th Street
- City
- New York City
- State
- New York
- ZIP
- 10025
- Coordinates
- 40.79734, -73.97214
Within ~1 km
Nearby benchmarked buildings
- DOUGLASS I/DOUGLASS II CAMPUSscore 19
Multifamily Housing · 2,221,782 sq ft
- DOUGLASS I/DOUGLASS IIscore —
Multifamily Housing · 2,221,782 sq ft
- DOUGLASS Iscore —
Multifamily Housing · 1,393,098 sq ft
- 808 Columbus Avenuescore 25
Multifamily Housing · 632,743 sq ft
- 700 COLUMBUS AVENUEscore 88
Multifamily Housing · 567,548 sq ft
- 135 West 96th Streetscore 5
Multifamily Housing · 504,485 sq ft
See also: most efficient in New York City · biggest emitters
How has 309 West 99's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 309 West 99, covering report years 2022–2024. Its ENERGY STAR score went from 64 in 2022 to 77 in 2023 (+13 points). Site EUI moved from 73.7 kBtu/ft² (2022) to 57.4 kBtu/ft² (2023), a 22% decrease. Reported emissions went from 210 tCO₂e to 186 tCO₂e over the same span (down 11%).
Which law requires 309 West 99 to report its energy use?
309 West 99 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:20634263:2024). 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
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- 3905 Carpenter Avenue· 48,064 sq ft
- 4102 8th Avenue· 48,060 sq ft · score 100 (A)
- Loring Place North· 48,056 sq ft · score 81 (B)
- 146-17 NORTHERN BOULEVARD· 48,054 sq ft · score 99 (A)
- 321 W 55 St Apts Inc· 48,049 sq ft · score 99 (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 309 West 99's energy grade?
309 West 99 has no grade: it did not report energy data for 2024. The 2024 Energy and Water Data Disclosure disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is 309 West 99?
309 West 99 is at 309 West 99th Street, in New York City, New York 10025. Its coordinates are 40.79734, -73.97214 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
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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, “309 West 99, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/309-west-99-e37e5f77 (data as of October 2, 2026).