3520-3530 73 Street
Multifamily Housing in New York City, NY · 35-20 73 Street · 11372
At a glance
3520-3530 73 Street is a 114,480-square-foot multifamily housing building at 35-20 73 Street in New York City, New York, built in 1937. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 32.6 kBtu/ft² and 256 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 32.6 kBtu/ft² |
| Source EUI | 48.4 kBtu/ft² |
| GHG emissions | 256 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 272,528 kWh |
| Natural gas | 28,011 therms |
| Gross floor area | 114,480 sq ft |
| Source record | nyc:12859838:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | ±0 | 32.6 kBtu/ft² | 256 tCO₂e |
| 2023 | 100 | ±0 | 39.0 kBtu/ft² | 263 tCO₂e |
| 2022 | 100 | 41.8 kBtu/ft² | 257 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 35-20 73 Street
- City
- New York City
- State
- New York
- ZIP
- 11372
- Coordinates
- 40.75057, -73.89301
Within ~1 km
Nearby benchmarked buildings
- Benchmarking Group - 45score 97
Hospital (General Medical & Surgical) · 1,162,258 sq ft
Hospital (General Medical & Surgical) · 961,932 sq ft
- 79-11 41st Avenuescore 69
Multifamily Housing · 313,120 sq ft
- 80-15 41st Avenuescore 81
Multifamily Housing · 269,383 sq ft
K-12 School · 240,175 sq ft
- Towers Coop - 33-16 81st Streetscore 89
Multifamily Housing · 213,332 sq ft
See also: most efficient in New York City · biggest emitters
How does 3520-3530 73 Street 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. 3520-3530 73 Street's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 32.6 kBtu/ft² is about 56% 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 2.2 kgCO₂e/ft² is about 57% below the group average of 5.2 kgCO₂e/ft².
At 114,480 sq ft, it is about 13% above the average floor area of 100,951 sq ft for those buildings. It was built in 1937, 15 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 3520-3530 73 Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 3520-3530 73 Street, covering report years 2022–2024. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 41.8 kBtu/ft² (2022) to 32.6 kBtu/ft² (2024), a 22% decrease. Reported emissions went from 257 tCO₂e to 256 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 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. 3520-3530 73 Street's 32.6 kBtu/ft² across 114,480 sq ft works out to about 3.7 billion Btu (1,094 MWh-equivalent) in 2024. Its source EUI of 48.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 272,528 kWh of electricity and 28,011 therms of natural gas for the year.
Which law requires 3520-3530 73 Street to report its energy use?
3520-3530 73 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:12859838:2024). 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
- 820 Fifth Ave· 114,465 sq ft · EUI 58.4 kBtu/ft²
- 465 East 7th Street LLC· 114,450 sq ft · score 75 (B)
- Elyachar: 1100 Madison Ave.· 114,433 sq ft · score 72 (B)
- PRINCE PROPERTY : 36-36 Prince· 114,412 sq ft · EUI 157.1 kBtu/ft²
- 407 Park Avenue South - CEC· 114,407 sq ft · score 43 (D)
- Fairfield - 43-60 Douglaston Parkway· 114,402 sq ft · score 58 (C)
- 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 3520-3530 73 Street's energy grade?
3520-3530 73 Street scores 100 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 3520-3530 73 Street use?
Its 2024 site energy-use intensity was 32.6 kBtu/ft² (48.4 kBtu/ft² source) across 114,480 sq ft, including 272,528 kWh of electricity and 28,011 therms of natural gas.
What are 3520-3530 73 Street's carbon emissions?
3520-3530 73 Street reported 256 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2024.
Where is 3520-3530 73 Street?
3520-3530 73 Street is at 35-20 73 Street, in New York City, New York 11372. Its coordinates are 40.75057, -73.89301 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 3520-3530 73 Street and when was it built?
3520-3530 73 Street has 114,480 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1937 as its year built. It is classed as multifamily housing.
Is 3520-3530 73 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “3520-3530 73 Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/3520-3530-73-street-3a705459 (data as of October 2, 2026).