Walter Black: 41-42 Parsons
Multifamily Housing in New York City, NY · 41-42 Parsons Boulevard · 11355
At a glance
Walter Black: 41-42 Parsons is a 59,000-square-foot multifamily housing building at 41-42 Parsons Boulevard in New York City, New York, built in 1929. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 11 out of 100 (grade D), a site energy-use intensity of 119.6 kBtu/ft² and 548 tCO₂e of greenhouse-gas emissions. That score is higher than 8% 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 | 11 (band D) |
| Site EUI | 119.6 kBtu/ft² |
| Source EUI | 139.5 kBtu/ft² |
| GHG emissions | 548 tCO₂e |
| GHG intensity | 9.3 kgCO₂e/ft² |
| Electricity | 178,560 kWh |
| Natural gas | 3,136 therms |
| Water use | 4,283 kgal |
| Gross floor area | 59,000 sq ft |
| Source record | nyc:4404049:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 11 | +6 | 119.6 kBtu/ft² | 548 tCO₂e |
| 2023 | 5 | -5 | 128.3 kBtu/ft² | 583 tCO₂e |
| 2022 | 10 | 125.6 kBtu/ft² | 557 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
- 41-42 Parsons Boulevard
- City
- New York City
- State
- New York
- ZIP
- 11355
- Coordinates
- 40.75942, -73.82105
Within ~1 km
Nearby benchmarked buildings
Multifamily Housing · 600,002 sq ft
- AAR: 41-40 Union Streetscore 67
Multifamily Housing · 410,452 sq ft
- 43-23 Colden St - 33608score 42
Multifamily Housing · 376,976 sq ft
- 43-70 Kissena Blvd - 33609score 36
Multifamily Housing · 349,005 sq ft
- THE STANTON CONDOscore 47
Multifamily Housing · 340,400 sq ft
- 42-49 Colden St - 33607score 34
Multifamily Housing · 308,109 sq ft
See also: most efficient in New York City · biggest emitters
How does Walter Black: 41-42 Parsons 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. Walter Black: 41-42 Parsons's ENERGY STAR score of 11 compares with an average of 63 across the 22,829 that report a score; it scores higher than 8% of them and lower than 92%. Its site EUI of 119.6 kBtu/ft² is about 60% 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 9.3 kgCO₂e/ft² is about 79% above the group average of 5.2 kgCO₂e/ft².
At 59,000 sq ft, it is about 42% below the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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 Walter Black: 41-42 Parsons's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Walter Black: 41-42 Parsons, covering report years 2022–2024. Its ENERGY STAR score went from 10 in 2022 to 11 in 2024 (+1 points). Site EUI moved from 125.6 kBtu/ft² (2022) to 119.6 kBtu/ft² (2024), a 5% decrease. Reported emissions went from 557 tCO₂e to 548 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 11 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 11 means the building performs better than about 11% of its national peers. BuildingCensus bands the score into report-card grades; 11 falls in band D — lowest band (1–54). It sits 64 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. Walter Black: 41-42 Parsons's 119.6 kBtu/ft² across 59,000 sq ft works out to about 7.1 billion Btu (2,068 MWh-equivalent) in 2024. Its source EUI of 139.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 178,560 kWh of electricity, 3,136 therms of natural gas and 4,283 thousand gallons of water for the year.
Which law requires Walter Black: 41-42 Parsons to report its energy use?
Walter Black: 41-42 Parsons 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:4404049:2024). 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
- Prime: 3176 Decatur Ave· 58,993 sq ft · score 93 (A)
- Progressive - NYCHA - 905 Eagle Avenue· 58,978 sq ft
- M&I Management - 1545 ST JOHNS PLACE· 58,960 sq ft · score 16 (D)
- UNIVERSITY AVENUE REHAB - Bldg 2· 58,950 sq ft · EUI 97.7 kBtu/ft²
- 117 East 24th Street· 58,946 sq ft · EUI 37.2 kBtu/ft²
- Chestnut - 49 East 19th Street· 58,945 sq ft · score 80 (B)
- 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 Walter Black: 41-42 Parsons's energy grade?
Walter Black: 41-42 Parsons scores 11 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 Walter Black: 41-42 Parsons use?
Its 2024 site energy-use intensity was 119.6 kBtu/ft² (139.5 kBtu/ft² source) across 59,000 sq ft, including 178,560 kWh of electricity and 3,136 therms of natural gas.
What are Walter Black: 41-42 Parsons's carbon emissions?
Walter Black: 41-42 Parsons reported 548 tCO₂e of greenhouse-gas emissions (9.3 kgCO₂e/ft²) for 2024.
Where is Walter Black: 41-42 Parsons?
Walter Black: 41-42 Parsons is at 41-42 Parsons Boulevard, in New York City, New York 11355. Its coordinates are 40.75942, -73.82105 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Walter Black: 41-42 Parsons and when was it built?
Walter Black: 41-42 Parsons has 59,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is Walter Black: 41-42 Parsons 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, “Walter Black: 41-42 Parsons, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/walter-black-41-42-parsons-5cd1f4ad (data as of October 2, 2026).