Crossing 23rd Condominium (121 E 23rd St)
Multifamily Housing in New York City, NY · 121 E 23rd St · 10010
At a glance
Crossing 23rd Condominium (121 E 23rd St) is a 122,205-square-foot multifamily housing building in New York City, New York, built in 2005. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 54.2 kBtu/ft² and 501 tCO₂e of greenhouse-gas emissions. That score is higher than 54% 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 | 73 (band B) |
| Site EUI | 54.2 kBtu/ft² |
| Source EUI | 91.3 kBtu/ft² |
| GHG emissions | 501 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 704,078 kWh |
| Natural gas | 42,209 therms |
| Water use | 2,912 kgal |
| Gross floor area | 122,205 sq ft |
| Source record | nyc:2806396:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 73 | +3 | 54.2 kBtu/ft² | 501 tCO₂e |
| 2023 | 70 | +13 | 63.5 kBtu/ft² | 441 tCO₂e |
| 2022 | 57 | 72.5 kBtu/ft² | 450 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
- 121 E 23rd St
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.73979, -73.98538
Within ~1 km
Nearby benchmarked buildings
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- 51 Madisonscore 79
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- One Madison Avenuescore —
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- ConEd Irving Placescore 55
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See also: most efficient in New York City · biggest emitters
How does Crossing 23rd Condominium (121 E 23rd St) 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. Crossing 23rd Condominium (121 E 23rd St)'s ENERGY STAR score of 73 compares with an average of 63 across the 22,829 that report a score; it scores higher than 54% of them and lower than 44%. Its site EUI of 54.2 kBtu/ft² is about 28% 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 4.1 kgCO₂e/ft² is about 21% below the group average of 5.2 kgCO₂e/ft².
At 122,205 sq ft, it is about 21% above the average floor area of 100,951 sq ft for those buildings. It was built in 2005, 53 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 Crossing 23rd Condominium (121 E 23rd St)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Crossing 23rd Condominium (121 E 23rd St), covering report years 2022–2024. Its ENERGY STAR score went from 57 in 2022 to 73 in 2024 (+16 points). Site EUI moved from 72.5 kBtu/ft² (2022) to 54.2 kBtu/ft² (2024), a 25% decrease. Reported emissions went from 450 tCO₂e to 501 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. Crossing 23rd Condominium (121 E 23rd St)'s 54.2 kBtu/ft² across 122,205 sq ft works out to about 6.6 billion Btu (1,941 MWh-equivalent) in 2024. Its source EUI of 91.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 704,078 kWh of electricity, 42,209 therms of natural gas and 2,912 thousand gallons of water for the year.
Which law requires Crossing 23rd Condominium (121 E 23rd St) to report its energy use?
Crossing 23rd Condominium (121 E 23rd St) 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:2806396:2024). 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
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- AKAM - 202-35 Foothill Avenue - CHILD· 122,094 sq ft
- AKAM - 87-50 204th Street - CHILD· 122,094 sq ft · score 4 (D)
- Citadel: 4260 Broadway· 122,083 sq ft · score 23 (D)
- WEC 210 LLC (210 Central Park South)· 122,071 sq ft
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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is Crossing 23rd Condominium (121 E 23rd St)'s energy grade?
Crossing 23rd Condominium (121 E 23rd St) scores 73 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Crossing 23rd Condominium (121 E 23rd St) use?
Its 2024 site energy-use intensity was 54.2 kBtu/ft² (91.3 kBtu/ft² source) across 122,205 sq ft, including 704,078 kWh of electricity and 42,209 therms of natural gas.
What are Crossing 23rd Condominium (121 E 23rd St)'s carbon emissions?
Crossing 23rd Condominium (121 E 23rd St) reported 501 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2024.
Where is Crossing 23rd Condominium (121 E 23rd St)?
Crossing 23rd Condominium (121 E 23rd St) is in New York City, New York 10010. Its coordinates are 40.73979, -73.98538 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Crossing 23rd Condominium (121 E 23rd St) and when was it built?
Crossing 23rd Condominium (121 E 23rd St) has 122,205 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2005 as its year built. It is classed as multifamily housing.
Is Crossing 23rd Condominium (121 E 23rd St) 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, “Crossing 23rd Condominium (121 E 23rd St), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/crossing-23rd-condominium-121-e-23rd-st-e1143c52 (data as of October 2, 2026).