2910 Exterior Street (188 W 230 ST)
Office in New York City, NY · 188 WEST 230 STREET · 10463
At a glance
2910 Exterior Street (188 W 230 ST) is a 102,977-square-foot office building at 188 WEST 230 STREET in New York City, New York, built in 1927. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 95 out of 100 (grade A), a site energy-use intensity of 39.2 kBtu/ft² and 402 tCO₂e of greenhouse-gas emissions. That score is higher than 87% 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 | 95 (band A) |
| Site EUI | 39.2 kBtu/ft² |
| Source EUI | 92.6 kBtu/ft² |
| GHG emissions | 402 tCO₂e |
| GHG intensity | 3.9 kgCO₂e/ft² |
| Electricity | 887,993 kWh |
| Natural gas | 10,030 therms |
| Gross floor area | 102,977 sq ft |
| Source record | nyc:6668373:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 95 | +1 | 39.2 kBtu/ft² | 402 tCO₂e |
| 2023 | 94 | +12 | 39.9 kBtu/ft² | 394 tCO₂e |
| 2022 | 82 | 45.6 kBtu/ft² | 364 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
- 188 WEST 230 STREET
- City
- New York City
- State
- New York
- ZIP
- 10463
- Coordinates
- 40.87696, -73.90580
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 2910 Exterior Street (188 W 230 ST) 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. 2910 Exterior Street (188 W 230 ST)'s ENERGY STAR score of 95 compares with an average of 72 across the 2,519 that report a score; it scores higher than 87% of them and lower than 11%. Its site EUI of 39.2 kBtu/ft² is about 39% 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 3.9 kgCO₂e/ft² is about 33% below the group average of 5.8 kgCO₂e/ft².
At 102,977 sq ft, it is about half of the average floor area of 205,440 sq ft for those buildings. It was built in 1927, 13 years earlier 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 2910 Exterior Street (188 W 230 ST)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 2910 Exterior Street (188 W 230 ST), covering report years 2022–2024. Its ENERGY STAR score went from 82 in 2022 to 95 in 2024 (+13 points). Site EUI moved from 45.6 kBtu/ft² (2022) to 39.2 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 364 tCO₂e to 402 tCO₂e over the same span (up 10%).
What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 falls in band A — high performer (85–100). 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. 2910 Exterior Street (188 W 230 ST)'s 39.2 kBtu/ft² across 102,977 sq ft works out to about 4 billion Btu (1,183 MWh-equivalent) in 2024. Its source EUI of 92.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 887,993 kWh of electricity and 10,030 therms of natural gas for the year.
Which law requires 2910 Exterior Street (188 W 230 ST) to report its energy use?
2910 Exterior Street (188 W 230 ST) 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:6668373:2024). 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
- 136 EAST 57 STREET· 102,917 sq ft · score 82 (B)
- 515 7th Ave· 102,836 sq ft · score 36 (D)
- 30 Irving Place· 102,805 sq ft · score 93 (A)
- 620 12th Avenue· 102,800 sq ft · EUI 5.5 kBtu/ft²
- 4 Columbus Circle· 102,720 sq ft · score 62 (C)
- 287 Park Ave South· 102,688 sq ft · score 47 (D)
- 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 2910 Exterior Street (188 W 230 ST)'s energy grade?
2910 Exterior Street (188 W 230 ST) scores 95 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2910 Exterior Street (188 W 230 ST) use?
Its 2024 site energy-use intensity was 39.2 kBtu/ft² (92.6 kBtu/ft² source) across 102,977 sq ft, including 887,993 kWh of electricity and 10,030 therms of natural gas.
What are 2910 Exterior Street (188 W 230 ST)'s carbon emissions?
2910 Exterior Street (188 W 230 ST) reported 402 tCO₂e of greenhouse-gas emissions (3.9 kgCO₂e/ft²) for 2024.
Where is 2910 Exterior Street (188 W 230 ST)?
2910 Exterior Street (188 W 230 ST) is at 188 WEST 230 STREET, in New York City, New York 10463. Its coordinates are 40.87696, -73.90580 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 2910 Exterior Street (188 W 230 ST) and when was it built?
2910 Exterior Street (188 W 230 ST) has 102,977 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1927 as its year built. It is classed as office.
Is 2910 Exterior Street (188 W 230 ST) 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, “2910 Exterior Street (188 W 230 ST), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/2910-exterior-street-188-w-230-st-0f2b0809 (data as of October 2, 2026).