HSS - 429 E 75th Street
Medical Office in New York City, NY · 429 E 75th Street · 10021
At a glance
HSS - 429 E 75th Street is a 31,430-square-foot medical office in New York City, New York, built in 1932. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 1 out of 100 (grade D), a site energy-use intensity of 258.8 kBtu/ft² and 818 tCO₂e of greenhouse-gas emissions. That score is higher than 0% of the 147 scored medical office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 1 (band D) |
| Site EUI | 258.8 kBtu/ft² |
| Source EUI | 618.5 kBtu/ft² |
| GHG emissions | 818 tCO₂e |
| GHG intensity | 26.0 kgCO₂e/ft² |
| Electricity | 1,824,827 kWh |
| Natural gas | 19,090 therms |
| Water use | 2,564 kgal |
| Gross floor area | 31,430 sq ft |
| Source record | nyc:2795490:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 1 | ±0 | 258.8 kBtu/ft² | 818 tCO₂e |
| 2023 | 1 | 294.2 kBtu/ft² | 828 tCO₂e | |
| 2022 | — | 283.8 kBtu/ft² | 678 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
- 429 E 75th Street
- City
- New York City
- State
- New York
- ZIP
- 10021
- Coordinates
- 40.76943, -73.95378
Within ~1 km
Nearby benchmarked buildings
- NYP Cornell (East Campus)score 47
Hospital (General Medical & Surgical) · 2,801,795 sq ft
Other - Specialty Hospital · 2,490,355 sq ft
Mixed Use Property · 2,437,399 sq ft
- Weill Cornell Medical Centerscore —
Hospital (General Medical & Surgical) · 2,405,480 sq ft
Laboratory · 1,862,814 sq ft
Laboratory · 1,546,119 sq ft
See also: most efficient in New York City · biggest emitters
How does HSS - 429 E 75th Street compare with other medical office buildings in New York City?
The latest disclosures cover 188 medical office buildings in New York City, out of 48,310 buildings citywide. HSS - 429 E 75th Street's ENERGY STAR score of 1 compares with an average of 65 across the 147 that report a score; it scores higher than 0% of them and lower than 93%. Its site EUI of 258.8 kBtu/ft² is about 165% above the average of 97.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 26.0 kgCO₂e/ft² is about 196% above the group average of 8.8 kgCO₂e/ft².
At 31,430 sq ft, it is about 58% below the average floor area of 75,019 sq ft for those buildings. It was built in 1932, 33 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².
How has HSS - 429 E 75th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for HSS - 429 E 75th Street, covering report years 2022–2024. Its ENERGY STAR score was 1 in both 2023 and 2024. Site EUI moved from 283.8 kBtu/ft² (2022) to 258.8 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 678 tCO₂e to 818 tCO₂e over the same span (up 21%).
What does an ENERGY STAR score of 1 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: 1 is the bottom of the scale. BuildingCensus bands the score into report-card grades; 1 falls in band D — lowest band (1–54). It sits 74 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. HSS - 429 E 75th Street's 258.8 kBtu/ft² across 31,430 sq ft works out to about 8.1 billion Btu (2,384 MWh-equivalent) in 2024. Its source EUI of 618.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,824,827 kWh of electricity, 19,090 therms of natural gas and 2,564 thousand gallons of water for the year.
Which law requires HSS - 429 E 75th Street to report its energy use?
HSS - 429 E 75th Street 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:2795490:2024). 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 medical office buildings in New York City
- 6511 Fort Hamilton Parkway· 31,393 sq ft · EUI 77.5 kBtu/ft²
- 3525 White Plains Rd· 30,998 sq ft · score 73 (B)
- 3525 White Plains Road· 30,998 sq ft · score 65 (C)
- 2604 3 AVENUE· 30,716 sq ft · score 72 (B)
- Midtown Health Center· 30,000 sq ft
- MBX ACQUISITION HOLDINGS, LLC: 2604 3rd Ave· 30,000 sq ft · score 34 (D)
- Medical Office buildings in New York City· 188 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 HSS - 429 E 75th Street's energy grade?
HSS - 429 E 75th Street scores 1 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 HSS - 429 E 75th Street use?
Its 2024 site energy-use intensity was 258.8 kBtu/ft² (618.5 kBtu/ft² source) across 31,430 sq ft, including 1,824,827 kWh of electricity and 19,090 therms of natural gas.
What are HSS - 429 E 75th Street's carbon emissions?
HSS - 429 E 75th Street reported 818 tCO₂e of greenhouse-gas emissions (26.0 kgCO₂e/ft²) for 2024.
Where is HSS - 429 E 75th Street?
HSS - 429 E 75th Street is in New York City, New York 10021. Its coordinates are 40.76943, -73.95378 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is HSS - 429 E 75th Street and when was it built?
HSS - 429 E 75th Street has 31,430 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1932 as its year built. It is classed as medical office.
Is HSS - 429 E 75th Street 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, “HSS - 429 E 75th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/hss-429-e-75th-street-3e3f8127 (data as of October 2, 2026).