Halstead - 321 East 48th Street
Multifamily Housing in New York City, NY · 317 EAST 48 STREET · 10017
At a glance
Halstead - 321 East 48th Street is a 74,751-square-foot multifamily housing building at 317 EAST 48 STREET in New York City, New York, built in 1960. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 43 out of 100 (grade D), a site energy-use intensity of 112.2 kBtu/ft² and 582 tCO₂e of greenhouse-gas emissions. That score is higher than 26% 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 | 43 (band D) |
| Site EUI | 112.2 kBtu/ft² |
| Source EUI | 169.3 kBtu/ft² |
| GHG emissions | 582 tCO₂e |
| GHG intensity | 7.8 kgCO₂e/ft² |
| Electricity | 644,165 kWh |
| Natural gas | 61,910 therms |
| Gross floor area | 74,751 sq ft |
| Source record | nyc:4043735:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 43 | -8 | 112.2 kBtu/ft² | 582 tCO₂e |
| 2023 | 51 | +1 | 102.1 kBtu/ft² | 523 tCO₂e |
| 2022 | 50 | 109.4 kBtu/ft² | 507 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
- 317 EAST 48 STREET
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75339, -73.96884
Within ~1 km
Nearby benchmarked buildings
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See also: most efficient in New York City · biggest emitters
How does Halstead - 321 East 48th 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. Halstead - 321 East 48th Street's ENERGY STAR score of 43 compares with an average of 63 across the 22,829 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 112.2 kBtu/ft² is about 50% 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 7.8 kgCO₂e/ft² is about 50% above the group average of 5.2 kgCO₂e/ft².
At 74,751 sq ft, it is about 26% below the average floor area of 100,951 sq ft for those buildings. It was built in 1960, 8 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 Halstead - 321 East 48th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Halstead - 321 East 48th Street, covering report years 2022–2024. Its ENERGY STAR score went from 50 in 2022 to 43 in 2024 (-7 points); its best year on file was 2023, at 51. Site EUI moved from 109.4 kBtu/ft² (2022) to 112.2 kBtu/ft² (2024), an 3% increase. Reported emissions went from 507 tCO₂e to 582 tCO₂e over the same span (up 15%).
What does an ENERGY STAR score of 43 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 43 means the building performs better than about 43% of its national peers. BuildingCensus bands the score into report-card grades; 43 falls in band D — lowest band (1–54). It sits 32 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. Halstead - 321 East 48th Street's 112.2 kBtu/ft² across 74,751 sq ft works out to about 8.4 billion Btu (2,458 MWh-equivalent) in 2024. Its source EUI of 169.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 644,165 kWh of electricity and 61,910 therms of natural gas for the year.
Which law requires Halstead - 321 East 48th Street to report its energy use?
Halstead - 321 East 48th 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:4043735:2024). 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 Halstead - 321 East 48th Street's energy grade?
Halstead - 321 East 48th Street scores 43 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 Halstead - 321 East 48th Street use?
Its 2024 site energy-use intensity was 112.2 kBtu/ft² (169.3 kBtu/ft² source) across 74,751 sq ft, including 644,165 kWh of electricity and 61,910 therms of natural gas.
What are Halstead - 321 East 48th Street's carbon emissions?
Halstead - 321 East 48th Street reported 582 tCO₂e of greenhouse-gas emissions (7.8 kgCO₂e/ft²) for 2024.
Where is Halstead - 321 East 48th Street?
Halstead - 321 East 48th Street is at 317 EAST 48 STREET, in New York City, New York 10017. Its coordinates are 40.75339, -73.96884 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Halstead - 321 East 48th Street and when was it built?
Halstead - 321 East 48th Street has 74,751 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as multifamily housing.
Is Halstead - 321 East 48th 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, “Halstead - 321 East 48th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/halstead-321-east-48th-street-e18b79b3 (data as of October 2, 2026).