Japan Society
Office in New York City, NY · 327 East 47th Street · 10017
At a glance
Japan Society is a 41,412-square-foot office building at 327 East 47th Street in New York City, New York, built in 1970. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 79 out of 100 (grade B), a site energy-use intensity of 48.7 kBtu/ft² and 197 tCO₂e of greenhouse-gas emissions. That score is higher than 50% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 48.7 kBtu/ft² |
| Source EUI | 108.3 kBtu/ft² |
| GHG emissions | 197 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 378,135 kWh |
| Gross floor area | 41,412 sq ft |
| Source record | nyc:6681847:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | +1 | 48.7 kBtu/ft² | 197 tCO₂e |
| 2023 | 78 | +1 | 50.2 kBtu/ft² | 192 tCO₂e |
| 2022 | 77 | 52.5 kBtu/ft² | 168 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
- 327 East 47th Street
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75238, -73.96846
Within ~1 km
Nearby benchmarked buildings
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- 345 Park Ave LPscore 47
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- 277 Park Avenuescore 55
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- 399 Park Avenuescore 69
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- Waldorf Astoria Hotelscore 97
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See also: most efficient in New York City · biggest emitters
How does Japan Society compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Japan Society's ENERGY STAR score of 79 compares with an average of 72 across the 2,519 that report a score; it scores higher than 50% of them and lower than 48%. Its site EUI of 48.7 kBtu/ft² is about 24% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.8 kgCO₂e/ft² is about 18% below the group average of 5.8 kgCO₂e/ft².
At 41,412 sq ft, it is about 80% below the average floor area of 205,440 sq ft for those buildings. It was built in 1970, 30 years later than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Japan Society's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Japan Society, covering report years 2022–2024. Its ENERGY STAR score went from 77 in 2022 to 79 in 2024 (+2 points). Site EUI moved from 52.5 kBtu/ft² (2022) to 48.7 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 168 tCO₂e to 197 tCO₂e over the same span (up 17%).
What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). 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. Japan Society's 48.7 kBtu/ft² across 41,412 sq ft works out to about 2 billion Btu (591 MWh-equivalent) in 2024. Its source EUI of 108.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 378,135 kWh of electricity for the year.
Which law requires Japan Society to report its energy use?
Japan Society 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:6681847:2024). 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 office buildings in New York City
- 19-31 Mott Avenue· 41,400 sq ft · score 90 (A)
- 1114 1st Avenue· 41,301 sq ft · score 65 (C)
- 672 Parkside LLC· 41,265 sq ft · score 26 (D)
- 3450 East Tremont Realty LLC : 3450 EAST TREMONT AVENUE· 41,260 sq ft · score 84 (B)
- 147 West 25th Street· 41,207 sq ft · score 87 (A)
- 821 Broadway· 41,198 sq ft · score 60 (C)
- Office buildings in New York City· 3,384 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 Japan Society's energy grade?
Japan Society scores 79 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Japan Society use?
Its 2024 site energy-use intensity was 48.7 kBtu/ft² (108.3 kBtu/ft² source) across 41,412 sq ft, including 378,135 kWh of electricity.
What are Japan Society's carbon emissions?
Japan Society reported 197 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024.
Where is Japan Society?
Japan Society is at 327 East 47th Street, in New York City, New York 10017. Its coordinates are 40.75238, -73.96846 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Japan Society and when was it built?
Japan Society has 41,412 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1970 as its year built. It is classed as office.
Is Japan Society 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, “Japan Society, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/japan-society-f07c03fc (data as of October 2, 2026).