Century Dev: 11-36 45th Rd
Office in New York City, NY · 11-36 45th Rd · 11101
At a glance
Century Dev: 11-36 45th Rd is a 56,000-square-foot office building in New York City, New York, built in 1965. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 5.9 kBtu/ft² and 38 tCO₂e of greenhouse-gas emissions. That score is higher than 95% 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 | 100 (band A) |
| Site EUI | 5.9 kBtu/ft² |
| Source EUI | 16.6 kBtu/ft² |
| GHG emissions | 38 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 97,269 kWh |
| Natural gas | 0 therms |
| Gross floor area | 56,000 sq ft |
| Source record | nyc:15658923:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 5.9 kBtu/ft² | 38 tCO₂e |
| 2023 | 100 | ±0 | 1.0 kBtu/ft² | 6 tCO₂e |
| 2022 | 100 | 3.5 kBtu/ft² | 16 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
- 11-36 45th Rd
- City
- New York City
- State
- New York
- ZIP
- 11101
- Coordinates
- 40.74691, -73.94913
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Century Dev: 11-36 45th Rd 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. Century Dev: 11-36 45th Rd's ENERGY STAR score of 100 compares with an average of 72 across the 2,519 that report a score; it scores higher than 95% of them. Its site EUI of 5.9 kBtu/ft² is about 91% below 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 0.7 kgCO₂e/ft² is about 88% below the group average of 5.8 kgCO₂e/ft².
At 56,000 sq ft, it is about 73% 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 Century Dev: 11-36 45th Rd's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Century Dev: 11-36 45th Rd, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 3.5 kBtu/ft² (2022) to 5.9 kBtu/ft² (2024), an 69% increase. Reported emissions went from 16 tCO₂e to 38 tCO₂e over the same span (up 143%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. Century Dev: 11-36 45th Rd's 5.9 kBtu/ft² across 56,000 sq ft works out to about 0.3 billion Btu (97 MWh-equivalent) in 2024. Its source EUI of 16.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 97,269 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Century Dev: 11-36 45th Rd to report its energy use?
Century Dev: 11-36 45th Rd 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:15658923:2024). 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 office buildings in New York City
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- 35 West 45· 55,622 sq ft · score 61 (C)
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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 Century Dev: 11-36 45th Rd's energy grade?
Century Dev: 11-36 45th Rd scores 100 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 Century Dev: 11-36 45th Rd use?
Its 2024 site energy-use intensity was 5.9 kBtu/ft² (16.6 kBtu/ft² source) across 56,000 sq ft, including 97,269 kWh of electricity and 0 therms of natural gas.
What are Century Dev: 11-36 45th Rd's carbon emissions?
Century Dev: 11-36 45th Rd reported 38 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024.
Where is Century Dev: 11-36 45th Rd?
Century Dev: 11-36 45th Rd is in New York City, New York 11101. Its coordinates are 40.74691, -73.94913 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Century Dev: 11-36 45th Rd and when was it built?
Century Dev: 11-36 45th Rd has 56,000 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 Century Dev: 11-36 45th Rd 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, “Century Dev: 11-36 45th Rd, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/century-dev-11-36-45th-rd-d5884b3d (data as of October 2, 2026).