THOMAS APARTMENTS
Multifamily Housing in New York City, NY · 102 WEST 91ST STREET · 10024
At a glance
THOMAS APARTMENTS is a 69,683-square-foot multifamily housing building at 102 WEST 91ST STREET in New York City, New York, built in 1994. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 20 out of 100 (grade D), a site energy-use intensity of 94.3 kBtu/ft² and 506 tCO₂e of greenhouse-gas emissions. That score is higher than 12% 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 | 20 (band D) |
| Site EUI | 94.3 kBtu/ft² |
| Source EUI | 147.6 kBtu/ft² |
| GHG emissions | 506 tCO₂e |
| GHG intensity | 7.3 kgCO₂e/ft² |
| Electricity | 446,100 kWh |
| Natural gas | 3,323 therms |
| Water use | 6,528 kgal |
| Gross floor area | 69,683 sq ft |
| Source record | nyc:2831216:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 20 | ±0 | 94.3 kBtu/ft² | 506 tCO₂e |
| 2023 | 20 | -80 | 94.5 kBtu/ft² | 496 tCO₂e |
| 2022 | 100 | 24.7 kBtu/ft² | 137 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
- 102 WEST 91ST STREET
- City
- New York City
- State
- New York
- ZIP
- 10024
- Coordinates
- 40.78978, -73.97012
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
Multifamily Housing · 689,897 sq ft
Multifamily Housing · 689,897 sq ft
Multifamily Housing · 689,897 sq ft
See also: most efficient in New York City · biggest emitters
How does THOMAS APARTMENTS 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. THOMAS APARTMENTS's ENERGY STAR score of 20 compares with an average of 63 across the 22,829 that report a score; it scores higher than 12% of them and lower than 88%. Its site EUI of 94.3 kBtu/ft² is about 26% 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 7.3 kgCO₂e/ft² is about 40% above the group average of 5.2 kgCO₂e/ft².
At 69,683 sq ft, it is about 31% below the average floor area of 100,951 sq ft for those buildings. It was built in 1994, 42 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 THOMAS APARTMENTS's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for THOMAS APARTMENTS, covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 20 in 2024 (-80 points); its best year on file was 2022, at 100. Site EUI moved from 24.7 kBtu/ft² (2022) to 94.3 kBtu/ft² (2024), an 282% increase. Reported emissions went from 137 tCO₂e to 506 tCO₂e over the same span (up 269%).
What does an ENERGY STAR score of 20 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 20 means the building performs better than about 20% of its national peers. BuildingCensus bands the score into report-card grades; 20 falls in band D — lowest band (1–54). It sits 55 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. THOMAS APARTMENTS's 94.3 kBtu/ft² across 69,683 sq ft works out to about 6.6 billion Btu (1,926 MWh-equivalent) in 2024. Its source EUI of 147.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 446,100 kWh of electricity, 3,323 therms of natural gas and 6,528 thousand gallons of water for the year.
Which law requires THOMAS APARTMENTS to report its energy use?
THOMAS APARTMENTS 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:2831216:2024). 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
- 22-10 Brookhaven Avenue - 35462· 69,682 sq ft · score 47 (D)
- Orsid- 1045 Park Ave· 69,655 sq ft · EUI 66.4 kBtu/ft²
- 3751 Apartment Corp· 69,654 sq ft · score 83 (B)
- 92-16 Whitney Avenue· 69,654 sq ft · score 76 (B)
- Bleecker Tower Tenants Corp (644 Broadway)· 69,653 sq ft · EUI 69.3 kBtu/ft²
- PRD Realty - 470 Dean Street· 69,650 sq ft · score 19 (D)
- 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 THOMAS APARTMENTS's energy grade?
THOMAS APARTMENTS scores 20 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does THOMAS APARTMENTS use?
Its 2024 site energy-use intensity was 94.3 kBtu/ft² (147.6 kBtu/ft² source) across 69,683 sq ft, including 446,100 kWh of electricity and 3,323 therms of natural gas.
What are THOMAS APARTMENTS's carbon emissions?
THOMAS APARTMENTS reported 506 tCO₂e of greenhouse-gas emissions (7.3 kgCO₂e/ft²) for 2024.
Where is THOMAS APARTMENTS?
THOMAS APARTMENTS is at 102 WEST 91ST STREET, in New York City, New York 10024. Its coordinates are 40.78978, -73.97012 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is THOMAS APARTMENTS and when was it built?
THOMAS APARTMENTS has 69,683 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1994 as its year built. It is classed as multifamily housing.
Is THOMAS APARTMENTS 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, “THOMAS APARTMENTS, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/thomas-apartments-428349ba (data as of October 2, 2026).