Impact: 450 W. 147th St
Multifamily Housing in New York City, NY · 450 W 147th St · 10031
At a glance
Impact: 450 W. 147th St is a 35,545-square-foot multifamily housing building at 450 W 147th St in New York City, New York, built in 1909. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 96 out of 100 (grade A), a site energy-use intensity of 71.3 kBtu/ft² and 157 tCO₂e of greenhouse-gas emissions. That score is higher than 84% 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 | 96 (band A) |
| Site EUI | 71.3 kBtu/ft² |
| Source EUI | 92.9 kBtu/ft² |
| GHG emissions | 157 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 107,212 kWh |
| Natural gas | 21,699 therms |
| Water use | 916 kgal |
| Gross floor area | 35,545 sq ft |
| Source record | nyc:6282892:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 96 | -1 | 71.3 kBtu/ft² | 157 tCO₂e |
| 2023 | 97 | ±0 | 69.3 kBtu/ft² | 150 tCO₂e |
| 2022 | 97 | 72.1 kBtu/ft² | 147 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
- 450 W 147th St
- City
- New York City
- State
- New York
- ZIP
- 10031
- Coordinates
- 40.82609, -73.94563
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Impact: 450 W. 147th 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. Impact: 450 W. 147th St's ENERGY STAR score of 96 compares with an average of 63 across the 22,829 that report a score; it scores higher than 84% of them and lower than 14%. Its site EUI of 71.3 kBtu/ft² is roughly in line with 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 4.4 kgCO₂e/ft² is about 15% below the group average of 5.2 kgCO₂e/ft².
At 35,545 sq ft, it is about 65% below the average floor area of 100,951 sq ft for those buildings. It was built in 1909, 43 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 Impact: 450 W. 147th St's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Impact: 450 W. 147th St, covering report years 2022–2024. Its ENERGY STAR score went from 97 in 2022 to 96 in 2024 (-1 points); its best year on file was 2022, at 97. Site EUI moved from 72.1 kBtu/ft² (2022) to 71.3 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 147 tCO₂e to 157 tCO₂e over the same span (up 7%).
What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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. Impact: 450 W. 147th St's 71.3 kBtu/ft² across 35,545 sq ft works out to about 2.5 billion Btu (743 MWh-equivalent) in 2024. Its source EUI of 92.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 107,212 kWh of electricity, 21,699 therms of natural gas and 916 thousand gallons of water for the year.
Which law requires Impact: 450 W. 147th St to report its energy use?
Impact: 450 W. 147th 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:6282892:2024). 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
- 221 East 201st Street· 35,537 sq ft · score 92 (A)
- 1495 East 28th Street· 35,533 sq ft · score 100 (A)
- 55 East 196 Street· 35,532 sq ft
- Norman: 122 Adelphi St.· 35,530 sq ft · EUI 52.4 kBtu/ft²
- Andrews: 208 6th Ave· 35,528 sq ft · score 4 (D)
- 1470 Third Ave( 171 E 83)· 35,527 sq ft · EUI 171.9 kBtu/ft²
- 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 Impact: 450 W. 147th St's energy grade?
Impact: 450 W. 147th St scores 96 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 Impact: 450 W. 147th St use?
Its 2024 site energy-use intensity was 71.3 kBtu/ft² (92.9 kBtu/ft² source) across 35,545 sq ft, including 107,212 kWh of electricity and 21,699 therms of natural gas.
What are Impact: 450 W. 147th St's carbon emissions?
Impact: 450 W. 147th St reported 157 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2024.
Where is Impact: 450 W. 147th St?
Impact: 450 W. 147th St is at 450 W 147th St, in New York City, New York 10031. Its coordinates are 40.82609, -73.94563 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Impact: 450 W. 147th St and when was it built?
Impact: 450 W. 147th St has 35,545 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1909 as its year built. It is classed as multifamily housing.
Is Impact: 450 W. 147th 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, “Impact: 450 W. 147th St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/impact-450-w-147th-st-9d4e01bb (data as of October 2, 2026).