Dermot - 520 West 43rd Street (Landon)
Multifamily Housing in New York City, NY · 520 W. 43Rd Street · 10036
At a glance
Dermot - 520 West 43rd Street (Landon) is a 319,759-square-foot multifamily housing building at 520 W. 43Rd Street in New York City, New York, built in 1996. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 25 out of 100 (grade D), a site energy-use intensity of 95.9 kBtu/ft² and 2,077 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 | 25 (band D) |
| Site EUI | 95.9 kBtu/ft² |
| Source EUI | 140.3 kBtu/ft² |
| GHG emissions | 2,077 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 2,118,767 kWh |
| Natural gas | 234,480 therms |
| Water use | 11,762 kgal |
| Gross floor area | 319,759 sq ft |
| Source record | nyc:6674829:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 25 | +7 | 95.9 kBtu/ft² | 2,077 tCO₂e |
| 2023 | 18 | -16 | 101.5 kBtu/ft² | 2,126 tCO₂e |
| 2022 | 34 | 95.5 kBtu/ft² | 1,874 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
- 520 W. 43Rd Street
- City
- New York City
- State
- New York
- ZIP
- 10036
- Coordinates
- 40.76086, -73.99634
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- Manhattan Westscore —
Other · 4,153,954 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- The Spiral - 66 Hudson Boulevardscore 82
Office · 2,830,000 sq ft
- Manhattan Plaza (mn38)score 19
Multifamily Housing · 1,698,128 sq ft
See also: most efficient in New York City · biggest emitters
How does Dermot - 520 West 43rd Street (Landon) 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. Dermot - 520 West 43rd Street (Landon)'s ENERGY STAR score of 25 compares with an average of 63 across the 22,829 that report a score; it scores higher than 15% of them and lower than 85%. Its site EUI of 95.9 kBtu/ft² is about 28% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.5 kgCO₂e/ft² is about 25% above the group average of 5.2 kgCO₂e/ft².
At 319,759 sq ft, it is about 217% above the average floor area of 100,951 sq ft for those buildings. It was built in 1996, 44 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 Dermot - 520 West 43rd Street (Landon)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Dermot - 520 West 43rd Street (Landon), covering report years 2022–2024. Its ENERGY STAR score went from 34 in 2022 to 25 in 2024 (-9 points); its best year on file was 2022, at 34. Site EUI moved from 95.5 kBtu/ft² (2022) to 95.9 kBtu/ft² (2024), an 0% increase. Reported emissions went from 1,874 tCO₂e to 2,077 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 25 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 25 means the building performs better than about 25% of its national peers. BuildingCensus bands the score into report-card grades; 25 falls in band D — lowest band (1–54). It sits 50 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. Dermot - 520 West 43rd Street (Landon)'s 95.9 kBtu/ft² across 319,759 sq ft works out to about 30.7 billion Btu (8,987 MWh-equivalent) in 2024. Its source EUI of 140.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,118,767 kWh of electricity, 234,480 therms of natural gas and 11,762 thousand gallons of water for the year.
Which law requires Dermot - 520 West 43rd Street (Landon) to report its energy use?
Dermot - 520 West 43rd Street (Landon) 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:6674829:2024). 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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Frequently asked questions
What is Dermot - 520 West 43rd Street (Landon)'s energy grade?
Dermot - 520 West 43rd Street (Landon) scores 25 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 Dermot - 520 West 43rd Street (Landon) use?
Its 2024 site energy-use intensity was 95.9 kBtu/ft² (140.3 kBtu/ft² source) across 319,759 sq ft, including 2,118,767 kWh of electricity and 234,480 therms of natural gas.
What are Dermot - 520 West 43rd Street (Landon)'s carbon emissions?
Dermot - 520 West 43rd Street (Landon) reported 2,077 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2024.
Where is Dermot - 520 West 43rd Street (Landon)?
Dermot - 520 West 43rd Street (Landon) is at 520 W. 43Rd Street, in New York City, New York 10036. Its coordinates are 40.76086, -73.99634 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Dermot - 520 West 43rd Street (Landon) and when was it built?
Dermot - 520 West 43rd Street (Landon) has 319,759 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1996 as its year built. It is classed as multifamily housing.
Is Dermot - 520 West 43rd Street (Landon) 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, “Dermot - 520 West 43rd Street (Landon), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dermot-520-west-43rd-street-landon-a5c22e3b (data as of October 2, 2026).