163 W 231st St
Multifamily Housing in New York City, NY · 10463
At a glance
163 W 231st St is a 34,388-square-foot multifamily housing building in New York City, New York, built in 1912. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A), a site energy-use intensity of 54.7 kBtu/ft² and 114 tCO₂e of greenhouse-gas emissions. That score is higher than 86% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 54.7 kBtu/ft² |
| Source EUI | 70.7 kBtu/ft² |
| GHG emissions | 114 tCO₂e |
| GHG intensity | 3.3 kgCO₂e/ft² |
| Electricity | 76,551 kWh |
| Natural gas | 16,187 therms |
| Water use | 2,654 kgal |
| Gross floor area | 34,388 sq ft |
| Source record | nyc:7402748:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 97 | +10 | 54.7 kBtu/ft² | 114 tCO₂e |
| 2022 | 87 | 73.1 kBtu/ft² | 143 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
- 163 W 231st St
- City
- New York City
- State
- New York
- ZIP
- 10463
- Coordinates
- 40.87833, -73.90321
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 163 W 231st St 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. 163 W 231st St's ENERGY STAR score of 97 compares with an average of 63 across the 22,829 that report a score; it scores higher than 86% of them and lower than 13%. Its site EUI of 54.7 kBtu/ft² is about 27% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.3 kgCO₂e/ft² is about 37% below the group average of 5.2 kgCO₂e/ft².
At 34,388 sq ft, it is about 66% below the average floor area of 100,951 sq ft for those buildings. It was built in 1912, 40 years earlier 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 163 W 231st St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for 163 W 231st St, covering report years 2022–2023. Its ENERGY STAR score went from 87 in 2022 to 97 in 2023 (+10 points). Site EUI moved from 73.1 kBtu/ft² (2022) to 54.7 kBtu/ft² (2023), a 25% decrease. Reported emissions went from 143 tCO₂e to 114 tCO₂e over the same span (down 20%).
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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. 163 W 231st St's 54.7 kBtu/ft² across 34,388 sq ft works out to about 1.9 billion Btu (551 MWh-equivalent) in 2023. Its source EUI of 70.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 76,551 kWh of electricity, 16,187 therms of natural gas and 2,654 thousand gallons of water for the year.
Which law requires 163 W 231st St to report its energy use?
163 W 231st 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 2023 disclosure (source record nyc:7402748:2023). 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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- 326 Audubon Ave· 34,385 sq ft · score 70 (B)
- KM 1032 Aldus Street· 34,380 sq ft · score 21 (D)
- Isaac Dahan Real Estate 35 Broadway· 34,380 sq ft · EUI 89.8 kBtu/ft²
- 35 Broadway· 34,380 sq ft · EUI 95.0 kBtu/ft²
- 577 Empire Boulevard· 34,380 sq ft · score 27 (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 163 W 231st St's energy grade?
163 W 231st St scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 163 W 231st St use?
Its 2023 site energy-use intensity was 54.7 kBtu/ft² (70.7 kBtu/ft² source) across 34,388 sq ft, including 76,551 kWh of electricity and 16,187 therms of natural gas.
What are 163 W 231st St's carbon emissions?
163 W 231st St reported 114 tCO₂e of greenhouse-gas emissions (3.3 kgCO₂e/ft²) for 2023.
Where is 163 W 231st St?
163 W 231st St is in New York City, New York 10463. Its coordinates are 40.87833, -73.90321 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 163 W 231st St and when was it built?
163 W 231st St has 34,388 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1912 as its year built. It is classed as multifamily housing.
Is 163 W 231st St covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “163 W 231st St, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/163-w-231st-st-03460fd2 (data as of October 2, 2026).