NYPL_4607_Hamilton Grange Branch Library
Library in New York City, NY · 503 West 145th St · 10031
At a glance
NYPL_4607_Hamilton Grange Branch Library is a 20,403-square-foot library at 503 West 145th St in New York City, New York, built in 1907. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 97.4 kBtu/ft² and 162 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 97.4 kBtu/ft² |
| Source EUI | 180.8 kBtu/ft² |
| GHG emissions | 162 tCO₂e |
| GHG intensity | 8.0 kgCO₂e/ft² |
| Electricity | 268,280 kWh |
| Natural gas | 10,714 therms |
| Gross floor area | 20,403 sq ft |
| Source record | nyc:21355483:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 97.4 kBtu/ft² | 162 tCO₂e | |
| 2023 | — | 83.5 kBtu/ft² | 145 tCO₂e | |
| 2022 | — | 107.4 kBtu/ft² | 150 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
- 503 West 145th St
- City
- New York City
- State
- New York
- ZIP
- 10031
- Coordinates
- 40.82543, -73.94805
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 10score —
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- DREW-HAMILTONscore 46
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- 626 Riverside Drscore 93
Multifamily Housing · 442,500 sq ft
- 300 West 145 Streetscore 31
Multifamily Housing · 339,930 sq ft
See also: most efficient in New York City · biggest emitters
How does NYPL_4607_Hamilton Grange Branch Library compare with other library buildings in New York City?
The latest disclosures cover 110 library buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 97.4 kBtu/ft² is about 26% above the average of 77.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.0 kgCO₂e/ft² is about 22% above the group average of 6.5 kgCO₂e/ft².
At 20,403 sq ft, it is about 63% below the average floor area of 55,576 sq ft for those buildings. It was built in 1907, 40 years earlier than the group's average year built (1947).
How has NYPL_4607_Hamilton Grange Branch Library's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for NYPL_4607_Hamilton Grange Branch Library, covering report years 2022–2024. Site EUI moved from 107.4 kBtu/ft² (2022) to 97.4 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 150 tCO₂e to 162 tCO₂e over the same span (up 8%).
What does a site EUI of 97.4 kBtu/ft² mean?
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. NYPL_4607_Hamilton Grange Branch Library's 97.4 kBtu/ft² across 20,403 sq ft works out to about 2 billion Btu (582 MWh-equivalent) in 2024. Its source EUI of 180.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 268,280 kWh of electricity and 10,714 therms of natural gas for the year.
Which law requires NYPL_4607_Hamilton Grange Branch Library to report its energy use?
NYPL_4607_Hamilton Grange Branch Library 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:21355483:2024). 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 library buildings in New York City
- NYPL_4596_Bloomingdale Branch Library· 20,381 sq ft · EUI 43.3 kBtu/ft²
- NYPL_4626_Seward Park Branch Library· 20,238 sq ft · EUI 48.1 kBtu/ft²
- BPL_256_Mapleton Branch Library· 19,821 sq ft · EUI 45.0 kBtu/ft²
- BPL_224_Borough Park Branch Library· 19,594 sq ft · EUI 62.8 kBtu/ft²
- NYPL_4687_St. George Library Center· 19,280 sq ft · EUI 99.6 kBtu/ft²
- Loretto Library· 18,739 sq ft
- Library buildings in New York City· 110 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 NYPL_4607_Hamilton Grange Branch Library's energy grade?
NYPL_4607_Hamilton Grange Branch Library did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 97.4 kBtu/ft².
How much energy does NYPL_4607_Hamilton Grange Branch Library use?
Its 2024 site energy-use intensity was 97.4 kBtu/ft² (180.8 kBtu/ft² source) across 20,403 sq ft, including 268,280 kWh of electricity and 10,714 therms of natural gas.
What are NYPL_4607_Hamilton Grange Branch Library's carbon emissions?
NYPL_4607_Hamilton Grange Branch Library reported 162 tCO₂e of greenhouse-gas emissions (8.0 kgCO₂e/ft²) for 2024.
Where is NYPL_4607_Hamilton Grange Branch Library?
NYPL_4607_Hamilton Grange Branch Library is at 503 West 145th St, in New York City, New York 10031. Its coordinates are 40.82543, -73.94805 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is NYPL_4607_Hamilton Grange Branch Library and when was it built?
NYPL_4607_Hamilton Grange Branch Library has 20,403 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1907 as its year built. It is classed as library.
Is NYPL_4607_Hamilton Grange Branch Library 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, “NYPL_4607_Hamilton Grange Branch Library, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/nypl-4607-hamilton-grange-branch-library-e17ca706 (data as of October 2, 2026).