London Terrace Towers
Multifamily Housing in New York City, NY · 465 West 23rd Street · 10011
At a glance
London Terrace Towers is a 690,336-square-foot multifamily housing building at 465 West 23rd Street in New York City, New York, built in 1932. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 80.5 kBtu/ft² and 3,895 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 80.5 kBtu/ft² |
| Source EUI | 123.1 kBtu/ft² |
| GHG emissions | 3,895 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 4,461,264 kWh |
| Natural gas | 403,540 therms |
| Gross floor area | 690,336 sq ft |
| Source record | nyc:4769672:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 80.5 kBtu/ft² | 3,895 tCO₂e | |
| 2023 | 58 | -13 | 82.0 kBtu/ft² | 3,838 tCO₂e |
| 2022 | 71 | 76.1 kBtu/ft² | 3,259 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
- 465 West 23rd Street
- City
- New York City
- State
- New York
- ZIP
- 10011
- Coordinates
- 40.74723, -74.00305
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does London Terrace Towers 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 80.5 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 690,336 sq ft, it is about 584% above the average floor area of 100,951 sq ft for those buildings. It was built in 1932, 20 years earlier 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 London Terrace Towers's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for London Terrace Towers, covering report years 2022–2024. Its ENERGY STAR score went from 71 in 2022 to 58 in 2023 (-13 points); its best year on file was 2022, at 71. Site EUI moved from 76.1 kBtu/ft² (2022) to 80.5 kBtu/ft² (2024), an 6% increase. Reported emissions went from 3,259 tCO₂e to 3,895 tCO₂e over the same span (up 20%).
What does a site EUI of 80.5 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. London Terrace Towers's 80.5 kBtu/ft² across 690,336 sq ft works out to about 55.6 billion Btu (16,287 MWh-equivalent) in 2024. Its source EUI of 123.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,461,264 kWh of electricity and 403,540 therms of natural gas for the year.
Which law requires London Terrace Towers to report its energy use?
London Terrace Towers 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:4769672:2024). 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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- 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 London Terrace Towers's energy grade?
London Terrace Towers did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 80.5 kBtu/ft².
How much energy does London Terrace Towers use?
Its 2024 site energy-use intensity was 80.5 kBtu/ft² (123.1 kBtu/ft² source) across 690,336 sq ft, including 4,461,264 kWh of electricity and 403,540 therms of natural gas.
What are London Terrace Towers's carbon emissions?
London Terrace Towers reported 3,895 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2024.
Where is London Terrace Towers?
London Terrace Towers is at 465 West 23rd Street, in New York City, New York 10011. Its coordinates are 40.74723, -74.00305 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is London Terrace Towers and when was it built?
London Terrace Towers has 690,336 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1932 as its year built. It is classed as multifamily housing.
Is London Terrace Towers 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, “London Terrace Towers, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/london-terrace-towers-ddfeb2c5 (data as of October 2, 2026).