Castle Hill - Bldgs 9-10
Multifamily Housing in New York City, NY · 2245 Randall AVENUE · 10473
At a glance
Castle Hill - Bldgs 9-10 is a 298,600-square-foot multifamily housing building at 2245 Randall AVENUE in New York City, New York, built in 1960. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 25.1 kBtu/ft² and 803 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 25.1 kBtu/ft² |
| Source EUI | 64.7 kBtu/ft² |
| GHG emissions | 803 tCO₂e |
| GHG intensity | 2.7 kgCO₂e/ft² |
| Electricity | 1,915,308 kWh |
| Natural gas | 9,618 therms |
| Gross floor area | 298,600 sq ft |
| Source record | nyc:33932477:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 25.1 kBtu/ft² | 803 tCO₂e | |
| 2023 | — | 25.1 kBtu/ft² | 766 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
- 2245 Randall AVENUE
- City
- New York City
- State
- New York
- ZIP
- 10473
- Coordinates
- 40.81920, -73.84676
Within ~1 km
Nearby benchmarked buildings
- CASTLE HILLscore 18
Multifamily Housing · 2,213,014 sq ft
- Jamie Towersscore 38
Multifamily Housing · 658,326 sq ft
- Castle Hill - Bldgs 5-8score —
Multifamily Housing · 627,300 sq ft
- Castle Hill - Bldgs 11-14score —
Multifamily Housing · 625,900 sq ft
Multifamily Housing · 598,475 sq ft
- 2025 Seward Avenuescore 75
Multifamily Housing · 212,010 sq ft
See also: most efficient in New York City · biggest emitters
How does Castle Hill - Bldgs 9-10 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. Its site EUI of 25.1 kBtu/ft² is about 66% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.7 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 298,600 sq ft, it is about 196% above the average floor area of 100,951 sq ft for those buildings. It was built in 1960, 8 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 Hill - Bldgs 9-10's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Castle Hill - Bldgs 9-10, covering report years 2023–2024. Site EUI moved from 25.1 kBtu/ft² (2023) to 25.1 kBtu/ft² (2024), an 0% increase. Reported emissions went from 766 tCO₂e to 803 tCO₂e over the same span (up 5%).
What does a site EUI of 25.1 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. Castle Hill - Bldgs 9-10's 25.1 kBtu/ft² across 298,600 sq ft works out to about 7.5 billion Btu (2,197 MWh-equivalent) in 2024. Its source EUI of 64.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,915,308 kWh of electricity and 9,618 therms of natural gas for the year.
Which law requires Castle Hill - Bldgs 9-10 to report its energy use?
Castle Hill - Bldgs 9-10 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:33932477:2024). 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 multifamily housing buildings in New York City
- Orsid - 345 East 93rd St· 298,562 sq ft · score 95 (A)
- 68-09 138 Street· 298,518 sq ft · score 45 (D)
- Stellar - 666-68 West End Ave· 297,985 sq ft · score 60 (C)
- Dermot - 160 East 48th Street (The Buchanan)· 297,793 sq ft · score 61 (C)
- La Central A· 297,603 sq ft · score 36 (D)
- ParkHill(3)· 297,600 sq ft
- Multifamily Housing buildings in New York City· 33,022 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 Castle Hill - Bldgs 9-10's energy grade?
Castle Hill - Bldgs 9-10 did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 25.1 kBtu/ft².
How much energy does Castle Hill - Bldgs 9-10 use?
Its 2024 site energy-use intensity was 25.1 kBtu/ft² (64.7 kBtu/ft² source) across 298,600 sq ft, including 1,915,308 kWh of electricity and 9,618 therms of natural gas.
What are Castle Hill - Bldgs 9-10's carbon emissions?
Castle Hill - Bldgs 9-10 reported 803 tCO₂e of greenhouse-gas emissions (2.7 kgCO₂e/ft²) for 2024.
Where is Castle Hill - Bldgs 9-10?
Castle Hill - Bldgs 9-10 is at 2245 Randall AVENUE, in New York City, New York 10473. Its coordinates are 40.81920, -73.84676 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Castle Hill - Bldgs 9-10 and when was it built?
Castle Hill - Bldgs 9-10 has 298,600 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as multifamily housing.
Is Castle Hill - Bldgs 9-10 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 Hill - Bldgs 9-10, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/castle-hill-bldgs-9-10-e31441fc (data as of October 2, 2026).