Lexington HDFC
Multifamily Housing in New York City, NY · 171 Lexington Avenue · 10016
At a glance
Lexington HDFC is a 41,000-square-foot multifamily housing building at 171 Lexington Avenue in New York City, New York, built in 2003. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 99 out of 100 (grade A), a site energy-use intensity of 46.9 kBtu/ft² and 121 tCO₂e of greenhouse-gas emissions. That score is higher than 88% 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 | 99 (band A) |
| Site EUI | 46.9 kBtu/ft² |
| Source EUI | 62.2 kBtu/ft² |
| GHG emissions | 121 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 88,993 kWh |
| Natural gas | 16,205 therms |
| Water use | 1,248 kgal |
| Gross floor area | 41,000 sq ft |
| Source record | nyc:59385106:2024 |
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
- 171 Lexington Avenue
- City
- New York City
- State
- New York
- ZIP
- 10016
- Coordinates
- 40.74424, -73.98128
Within ~1 km
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How does Lexington HDFC 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. Lexington HDFC's ENERGY STAR score of 99 compares with an average of 63 across the 22,829 that report a score; it scores higher than 88% of them and lower than 10%. Its site EUI of 46.9 kBtu/ft² is about 37% 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 3.0 kgCO₂e/ft² is about 43% below the group average of 5.2 kgCO₂e/ft².
At 41,000 sq ft, it is about 59% below the average floor area of 100,951 sq ft for those buildings. It was built in 2003, 51 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.
What does an ENERGY STAR score of 99 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 99 means the building performs better than about 99% of its national peers. BuildingCensus bands the score into report-card grades; 99 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Lexington HDFC's 46.9 kBtu/ft² across 41,000 sq ft works out to about 1.9 billion Btu (564 MWh-equivalent) in 2024. Its source EUI of 62.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 88,993 kWh of electricity, 16,205 therms of natural gas and 1,248 thousand gallons of water for the year.
Which law requires Lexington HDFC to report its energy use?
Lexington HDFC 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:59385106:2024). 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
- 1083 Longfellow Avenue: 1083 Longfellow Avenue· 40,998 sq ft · score 63 (C)
- Chestnut - 643 Southern Boulevard· 40,992 sq ft · score 47 (D)
- 651 Southern Boulevard· 40,992 sq ft · score 73 (B)
- 142-27 Barclay Avenue· 40,991 sq ft · score 77 (B)
- Vanderbilt - 142-27 Barclay ave· 40,991 sq ft · score 51 (D)
- 540 West 145th Street· 40,990 sq ft · score 7 (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 Lexington HDFC's energy grade?
Lexington HDFC scores 99 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Lexington HDFC use?
Its 2024 site energy-use intensity was 46.9 kBtu/ft² (62.2 kBtu/ft² source) across 41,000 sq ft, including 88,993 kWh of electricity and 16,205 therms of natural gas.
What are Lexington HDFC's carbon emissions?
Lexington HDFC reported 121 tCO₂e of greenhouse-gas emissions (3.0 kgCO₂e/ft²) for 2024.
Where is Lexington HDFC?
Lexington HDFC is at 171 Lexington Avenue, in New York City, New York 10016. Its coordinates are 40.74424, -73.98128 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Lexington HDFC and when was it built?
Lexington HDFC has 41,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2003 as its year built. It is classed as multifamily housing.
Is Lexington HDFC 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, “Lexington HDFC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/lexington-hdfc-00c83755 (data as of October 2, 2026).