CIG > NYBG_720_NYBG: LuEsther T. Mertz Library
Library in New York City, NY · 2674 Dr. Theodore Kazimiroff Blvd · 10458
At a glance
CIG > NYBG_720_NYBG: LuEsther T. Mertz Library is a 99,785-square-foot library at 2674 Dr. Theodore Kazimiroff Blvd in New York City, New York, built in 1899. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 111.8 kBtu/ft² and 593 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 111.8 kBtu/ft² |
| Source EUI | 117.4 kBtu/ft² |
| GHG emissions | 593 tCO₂e |
| GHG intensity | 5.9 kgCO₂e/ft² |
| Natural gas | 111,583 therms |
| Gross floor area | 99,785 sq ft |
| Source record | nyc:21354271:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 111.8 kBtu/ft² | 593 tCO₂e | |
| 2023 | — | 90.3 kBtu/ft² | 479 tCO₂e | |
| 2022 | — | 136.4 kBtu/ft² | 723 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 2674 Dr. Theodore Kazimiroff Blvd
- City
- New York City
- State
- New York
- ZIP
- 10458
- Coordinates
- 40.86264, -73.88250
Within ~1 km
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- Benchmarking Group - 20score —
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See also: most efficient in New York City · biggest emitters
How does CIG > NYBG_720_NYBG: LuEsther T. Mertz 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 111.8 kBtu/ft² is about 44% 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 5.9 kgCO₂e/ft² is roughly in line with the group average of 6.5 kgCO₂e/ft².
At 99,785 sq ft, it is about 80% above the average floor area of 55,576 sq ft for those buildings. It was built in 1899, 48 years earlier than the group's average year built (1947).
How has CIG > NYBG_720_NYBG: LuEsther T. Mertz Library's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for CIG > NYBG_720_NYBG: LuEsther T. Mertz Library, covering report years 2022–2024. Site EUI moved from 136.4 kBtu/ft² (2022) to 111.8 kBtu/ft² (2024), a 18% decrease. Reported emissions went from 723 tCO₂e to 593 tCO₂e over the same span (down 18%).
What does a site EUI of 111.8 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. CIG > NYBG_720_NYBG: LuEsther T. Mertz Library's 111.8 kBtu/ft² across 99,785 sq ft works out to about 11.2 billion Btu (3,269 MWh-equivalent) in 2024. Its source EUI of 117.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 111,583 therms of natural gas for the year.
Which law requires CIG > NYBG_720_NYBG: LuEsther T. Mertz Library to report its energy use?
CIG > NYBG_720_NYBG: LuEsther T. Mertz 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:21354271:2024). 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
- O'Malley Library· 97,061 sq ft
- CUNY CC > BCC_351_Bronx CC: Gould Memorial Library· 82,747 sq ft
- QPL_5158_Flushing (ALC) Community Library· 76,000 sq ft · EUI 100.7 kBtu/ft²
- NYPL_4624_Schomburg Center/Research in Black Culture· 69,924 sq ft · EUI 19.7 kBtu/ft²
- NYPL_4637_Bronx Library Center· 63,724 sq ft · EUI 99.5 kBtu/ft²
- Benchmarking Group - 80· 62,710 sq ft · EUI 160.5 kBtu/ft²
- 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 CIG > NYBG_720_NYBG: LuEsther T. Mertz Library's energy grade?
CIG > NYBG_720_NYBG: LuEsther T. Mertz Library did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 111.8 kBtu/ft².
How much energy does CIG > NYBG_720_NYBG: LuEsther T. Mertz Library use?
Its 2024 site energy-use intensity was 111.8 kBtu/ft² (117.4 kBtu/ft² source) across 99,785 sq ft and 111,583 therms of natural gas.
What are CIG > NYBG_720_NYBG: LuEsther T. Mertz Library's carbon emissions?
CIG > NYBG_720_NYBG: LuEsther T. Mertz Library reported 593 tCO₂e of greenhouse-gas emissions (5.9 kgCO₂e/ft²) for 2024.
Where is CIG > NYBG_720_NYBG: LuEsther T. Mertz Library?
CIG > NYBG_720_NYBG: LuEsther T. Mertz Library is at 2674 Dr. Theodore Kazimiroff Blvd, in New York City, New York 10458. Its coordinates are 40.86264, -73.88250 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is CIG > NYBG_720_NYBG: LuEsther T. Mertz Library and when was it built?
CIG > NYBG_720_NYBG: LuEsther T. Mertz Library has 99,785 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1899 as its year built. It is classed as library.
Is CIG > NYBG_720_NYBG: LuEsther T. Mertz 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, “CIG > NYBG_720_NYBG: LuEsther T. Mertz Library, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/cig-nybg-720-nybg-luesther-t-mertz-library-4110f806 (data as of October 2, 2026).