Assembly Hall of Jehovah's Witnesses, Inc.
Worship Facility in New York City, NY · 973 Flatbush Avenue · 11226
At a glance
Assembly Hall of Jehovah's Witnesses, Inc. is a 98,300-square-foot worship facility at 973 Flatbush Avenue in New York City, New York, built in 1919. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 27.5 kBtu/ft² and 217 tCO₂e of greenhouse-gas emissions. That score is higher than 68% of the 224 scored worship facility buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 58 (band C) |
| Site EUI | 27.5 kBtu/ft² |
| Source EUI | 49.9 kBtu/ft² |
| GHG emissions | 217 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 347,443 kWh |
| Natural gas | 15,149 therms |
| Water use | 4,152 kgal |
| Gross floor area | 98,300 sq ft |
| Source record | nyc:3113515:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 58 | +3 | 27.5 kBtu/ft² | 217 tCO₂e |
| 2023 | 55 | -15 | 28.5 kBtu/ft² | 218 tCO₂e |
| 2022 | 70 | 25.9 kBtu/ft² | 163 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
- 973 Flatbush Avenue
- City
- New York City
- State
- New York
- ZIP
- 11226
- Coordinates
- 40.64773, -73.95814
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Assembly Hall of Jehovah's Witnesses, Inc. compare with other worship facility buildings in New York City?
The latest disclosures cover 370 worship facility buildings in New York City, out of 48,310 buildings citywide. Assembly Hall of Jehovah's Witnesses, Inc.'s ENERGY STAR score of 58 compares with an average of 43 across the 224 that report a score; it scores higher than 68% of them and lower than 31%. Its site EUI of 27.5 kBtu/ft² is about 56% below the average of 62.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about half of the group average of 4.6 kgCO₂e/ft².
At 98,300 sq ft, it is about twice the average floor area of 44,868 sq ft for those buildings. It was built in 1919, 18 years earlier than the group's average year built (1937). Across all 24 jurisdictions BuildingCensus covers, the 1,035 worship facility buildings average an ENERGY STAR score of 50 and a site EUI of 47.8 kBtu/ft².
How has Assembly Hall of Jehovah's Witnesses, Inc.'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Assembly Hall of Jehovah's Witnesses, Inc., covering report years 2022–2024. Its ENERGY STAR score went from 70 in 2022 to 58 in 2024 (-12 points); its best year on file was 2022, at 70. Site EUI moved from 25.9 kBtu/ft² (2022) to 27.5 kBtu/ft² (2024), an 6% increase. Reported emissions went from 163 tCO₂e to 217 tCO₂e over the same span (up 33%).
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. Assembly Hall of Jehovah's Witnesses, Inc.'s 27.5 kBtu/ft² across 98,300 sq ft works out to about 2.7 billion Btu (792 MWh-equivalent) in 2024. Its source EUI of 49.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 347,443 kWh of electricity, 15,149 therms of natural gas and 4,152 thousand gallons of water for the year.
Which law requires Assembly Hall of Jehovah's Witnesses, Inc. to report its energy use?
Assembly Hall of Jehovah's Witnesses, Inc. 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:3113515:2024). 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 worship facility buildings in New York City
- St. Patrick's Cathedral· 95,087 sq ft · EUI 86.3 kBtu/ft²
- Allen AME Church· 93,830 sq ft · score 14 (D)
- KPCOQ: 143-45 Franklin Ave.· 93,398 sq ft · score 38 (D)
- 89-00 23rd Avenue (Parent Property)· 92,403 sq ft · EUI 20.9 kBtu/ft²
- 405 West 59th Street & 120 West 60th Street - Parent Property· 91,749 sq ft · EUI 74.2 kBtu/ft²
- Plymouth Church· 88,880 sq ft · EUI 110.4 kBtu/ft²
- Worship Facility buildings in New York City· 370 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 Assembly Hall of Jehovah's Witnesses, Inc.'s energy grade?
Assembly Hall of Jehovah's Witnesses, Inc. scores 58 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 Assembly Hall of Jehovah's Witnesses, Inc. use?
Its 2024 site energy-use intensity was 27.5 kBtu/ft² (49.9 kBtu/ft² source) across 98,300 sq ft, including 347,443 kWh of electricity and 15,149 therms of natural gas.
What are Assembly Hall of Jehovah's Witnesses, Inc.'s carbon emissions?
Assembly Hall of Jehovah's Witnesses, Inc. reported 217 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2024.
Where is Assembly Hall of Jehovah's Witnesses, Inc.?
Assembly Hall of Jehovah's Witnesses, Inc. is at 973 Flatbush Avenue, in New York City, New York 11226. Its coordinates are 40.64773, -73.95814 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Assembly Hall of Jehovah's Witnesses, Inc. and when was it built?
Assembly Hall of Jehovah's Witnesses, Inc. has 98,300 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1919 as its year built. It is classed as worship facility.
Is Assembly Hall of Jehovah's Witnesses, Inc. 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).
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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, “Assembly Hall of Jehovah's Witnesses, Inc., New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/assembly-hall-of-jehovah-s-witnesses-inc-33fc9c27 (data as of October 2, 2026).