WCMC Lasdon House
Multifamily Housing in New York City, NY · 420 East 70th St · 10021
At a glance
WCMC Lasdon House is a 228,389-square-foot multifamily housing building at 420 East 70th St in New York City, New York, built in 1974. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 88.0 kBtu/ft².
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 88.0 kBtu/ft² |
| Source EUI | 146.0 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 1,824,516 kWh |
| Natural gas | 2,325 therms |
| Gross floor area | 228,389 sq ft |
| Source record | nyc:2674737:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 88.0 kBtu/ft² | — | |
| 2023 | — | 90.1 kBtu/ft² | — | |
| 2022 | 60 | 93.5 kBtu/ft² | — |
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
- 420 East 70th St
- City
- New York City
- State
- New York
- ZIP
- 10021
- Coordinates
- 40.76613, -73.95612
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does WCMC Lasdon House 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 88.0 kBtu/ft² is about 17% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 228,389 sq ft, it is about 126% above the average floor area of 100,951 sq ft for those buildings. It was built in 1974, 22 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 WCMC Lasdon House's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for WCMC Lasdon House, covering report years 2022–2024. Site EUI moved from 93.5 kBtu/ft² (2022) to 88.0 kBtu/ft² (2024), a 6% decrease.
What does a site EUI of 88.0 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. WCMC Lasdon House's 88.0 kBtu/ft² across 228,389 sq ft works out to about 20.1 billion Btu (5,890 MWh-equivalent) in 2024. Its source EUI of 146.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,824,516 kWh of electricity and 2,325 therms of natural gas for the year.
Which law requires WCMC Lasdon House to report its energy use?
WCMC Lasdon House 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:2674737:2024). 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
- GRAHAM COURT OWNERS CORP./1921 7 Ave· 228,312 sq ft · score 75 (B)
- 101 West 79th Street· 228,193 sq ft · score 14 (D)
- 235 West 75th Street· 228,147 sq ft · score 50 (D)
- 233 East 69th Street· 227,773 sq ft · score 42 (D)
- Henry Phipps Plaza South (BIN: 1078835)· 227,679 sq ft
- Milan Condominium (300 East 55th Street)· 227,663 sq ft · score 34 (D)
- 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 WCMC Lasdon House's energy grade?
WCMC Lasdon House did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 88.0 kBtu/ft².
How much energy does WCMC Lasdon House use?
Its 2024 site energy-use intensity was 88.0 kBtu/ft² (146.0 kBtu/ft² source) across 228,389 sq ft, including 1,824,516 kWh of electricity and 2,325 therms of natural gas.
What are WCMC Lasdon House's carbon emissions?
No greenhouse-gas emissions figure was reported for 2024.
Where is WCMC Lasdon House?
WCMC Lasdon House is at 420 East 70th St, in New York City, New York 10021. Its coordinates are 40.76613, -73.95612 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is WCMC Lasdon House and when was it built?
WCMC Lasdon House has 228,389 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1974 as its year built. It is classed as multifamily housing.
Is WCMC Lasdon House 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, “WCMC Lasdon House, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/wcmc-lasdon-house-d8d65e58 (data as of October 2, 2026).