CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing
Office in New York City, NY · 2674 Dr. Theodore Kazimiroff Blvd · 10458
At a glance
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing is a 18,541-square-foot office building at 2674 Dr. Theodore Kazimiroff Blvd in New York City, New York, built in 1965. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 93 out of 100 (grade A), a site energy-use intensity of 58.9 kBtu/ft² and 58 tCO₂e of greenhouse-gas emissions. That score is higher than 81% 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 | 93 (band A) |
| Site EUI | 58.9 kBtu/ft² |
| Source EUI | 61.8 kBtu/ft² |
| GHG emissions | 58 tCO₂e |
| GHG intensity | 3.1 kgCO₂e/ft² |
| Natural gas | 10,920 therms |
| Gross floor area | 18,541 sq ft |
| Source record | nyc:21354280:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 93 | +1 | 58.9 kBtu/ft² | 58 tCO₂e |
| 2023 | 92 | -1 | 60.9 kBtu/ft² | 60 tCO₂e |
| 2022 | 93 | 59.3 kBtu/ft² | 58 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
- 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_729_NYBG: Harriet Barnes Pratt Library Wing 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. CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing's ENERGY STAR score of 93 compares with an average of 72 across the 2,519 that report a score; it scores higher than 81% of them and lower than 15%. Its site EUI of 58.9 kBtu/ft² is roughly in line with 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 3.1 kgCO₂e/ft² is about half of the group average of 5.8 kgCO₂e/ft².
At 18,541 sq ft, it is about 91% below the average floor area of 205,440 sq ft for those buildings. It was built in 1965, 25 years later 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 CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing, covering report years 2022–2024. Its ENERGY STAR score was 93 in both 2022 and 2024. Site EUI moved from 59.3 kBtu/ft² (2022) to 58.9 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 58 tCO₂e to 58 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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. CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing's 58.9 kBtu/ft² across 18,541 sq ft works out to about 1.1 billion Btu (320 MWh-equivalent) in 2024. Its source EUI of 61.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 10,920 therms of natural gas for the year.
Which law requires CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing to report its energy use?
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing 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:21354280:2024). 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.
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- 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 CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing's energy grade?
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing scores 93 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 CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing use?
Its 2024 site energy-use intensity was 58.9 kBtu/ft² (61.8 kBtu/ft² source) across 18,541 sq ft and 10,920 therms of natural gas.
What are CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing's carbon emissions?
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing reported 58 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2024.
Where is CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing?
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing 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_729_NYBG: Harriet Barnes Pratt Library Wing and when was it built?
CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing has 18,541 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1965 as its year built. It is classed as office.
Is CIG > NYBG_729_NYBG: Harriet Barnes Pratt Library Wing 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_729_NYBG: Harriet Barnes Pratt Library Wing, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/cig-nybg-729-nybg-harriet-barnes-pratt-library-wing-22822eea (data as of October 2, 2026).