Castle Gardens
Multifamily Housing in New York City, NY · 625 W. 140Th Street · 10031
At a glance
Castle Gardens is a 100,756-square-foot multifamily housing building at 625 W. 140Th Street in New York City, New York, built in 2009. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 26 out of 100 (grade D), a site energy-use intensity of 78.9 kBtu/ft² and 607 tCO₂e of greenhouse-gas emissions. That score is higher than 15% 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 | 26 (band D) |
| Site EUI | 78.9 kBtu/ft² |
| Source EUI | 134.5 kBtu/ft² |
| GHG emissions | 607 tCO₂e |
| GHG intensity | 6.0 kgCO₂e/ft² |
| Electricity | 873,115 kWh |
| Natural gas | 49,669 therms |
| Gross floor area | 100,756 sq ft |
| Source record | nyc:2811159:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 26 | -2 | 78.9 kBtu/ft² | 607 tCO₂e |
| 2023 | 28 | -10 | 78.4 kBtu/ft² | 573 tCO₂e |
| 2022 | 38 | 79.1 kBtu/ft² | 508 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
- 625 W. 140Th Street
- City
- New York City
- State
- New York
- ZIP
- 10031
- Coordinates
- 40.82380, -73.95402
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Castle Gardens 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. Castle Gardens's ENERGY STAR score of 26 compares with an average of 63 across the 22,829 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 78.9 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.0 kgCO₂e/ft² is about 16% above the group average of 5.2 kgCO₂e/ft².
At 100,756 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 2009, 57 years later 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 Castle Gardens's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Castle Gardens, covering report years 2022–2024. Its ENERGY STAR score went from 38 in 2022 to 26 in 2024 (-12 points); its best year on file was 2022, at 38. Site EUI moved from 79.1 kBtu/ft² (2022) to 78.9 kBtu/ft² (2024), a 0% decrease. Reported emissions went from 508 tCO₂e to 607 tCO₂e over the same span (up 19%).
What does an ENERGY STAR score of 26 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 26 means the building performs better than about 26% of its national peers. BuildingCensus bands the score into report-card grades; 26 falls in band D — lowest band (1–54). It sits 49 points below 75, the threshold for ENERGY STAR certification. 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. Castle Gardens's 78.9 kBtu/ft² across 100,756 sq ft works out to about 7.9 billion Btu (2,330 MWh-equivalent) in 2024. Its source EUI of 134.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 873,115 kWh of electricity and 49,669 therms of natural gas for the year.
Which law requires Castle Gardens to report its energy use?
Castle Gardens 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:2811159:2024). 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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- 911 Walton Avenue· 100,725 sq ft
- SR. LUCIAN APTS· 100,700 sq ft · score 92 (A)
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is Castle Gardens's energy grade?
Castle Gardens scores 26 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Castle Gardens use?
Its 2024 site energy-use intensity was 78.9 kBtu/ft² (134.5 kBtu/ft² source) across 100,756 sq ft, including 873,115 kWh of electricity and 49,669 therms of natural gas.
What are Castle Gardens's carbon emissions?
Castle Gardens reported 607 tCO₂e of greenhouse-gas emissions (6.0 kgCO₂e/ft²) for 2024.
Where is Castle Gardens?
Castle Gardens is at 625 W. 140Th Street, in New York City, New York 10031. Its coordinates are 40.82380, -73.95402 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Castle Gardens and when was it built?
Castle Gardens has 100,756 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as multifamily housing.
Is Castle Gardens 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, “Castle Gardens, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/castle-gardens-101cfc0a (data as of October 2, 2026).