Gilman: 397 E 49th St
Multifamily Housing in New York City, NY · 397 E 49th St · 11203
At a glance
Gilman: 397 E 49th St is a 30,474-square-foot multifamily housing building in New York City, New York, built in 1927. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 28 out of 100 (grade D), a site energy-use intensity of 89.1 kBtu/ft² and 165 tCO₂e of greenhouse-gas emissions. That score is higher than 16% 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 | 28 (band D) |
| Site EUI | 89.1 kBtu/ft² |
| Source EUI | 112.7 kBtu/ft² |
| GHG emissions | 165 tCO₂e |
| GHG intensity | 5.4 kgCO₂e/ft² |
| Electricity | 97,305 kWh |
| Natural gas | 23,846 therms |
| Water use | 4,352 kgal |
| Gross floor area | 30,474 sq ft |
| Source record | nyc:33638971:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 28 | +14 | 89.1 kBtu/ft² | 165 tCO₂e |
| 2023 | 14 | 99.0 kBtu/ft² | 185 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
- 397 E 49th St
- City
- New York City
- State
- New York
- ZIP
- 11203
- Coordinates
- 40.65237, -73.93145
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Gilman: 397 E 49th St 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. Gilman: 397 E 49th St's ENERGY STAR score of 28 compares with an average of 63 across the 22,829 that report a score; it scores higher than 16% of them and lower than 83%. Its site EUI of 89.1 kBtu/ft² is about 19% 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 5.4 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 30,474 sq ft, it is about 70% below the average floor area of 100,951 sq ft for those buildings. It was built in 1927, 25 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 Gilman: 397 E 49th St's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Gilman: 397 E 49th St, covering report years 2023–2024. Its ENERGY STAR score went from 14 in 2023 to 28 in 2024 (+14 points). Site EUI moved from 99.0 kBtu/ft² (2023) to 89.1 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 185 tCO₂e to 165 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 28 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 28 means the building performs better than about 28% of its national peers. BuildingCensus bands the score into report-card grades; 28 falls in band D — lowest band (1–54). It sits 47 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. Gilman: 397 E 49th St's 89.1 kBtu/ft² across 30,474 sq ft works out to about 2.7 billion Btu (796 MWh-equivalent) in 2024. Its source EUI of 112.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 97,305 kWh of electricity, 23,846 therms of natural gas and 4,352 thousand gallons of water for the year.
Which law requires Gilman: 397 E 49th St to report its energy use?
Gilman: 397 E 49th St 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:33638971:2024). 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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- 407 Condominium· 30,462 sq ft
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- 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 Gilman: 397 E 49th St's energy grade?
Gilman: 397 E 49th St scores 28 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 Gilman: 397 E 49th St use?
Its 2024 site energy-use intensity was 89.1 kBtu/ft² (112.7 kBtu/ft² source) across 30,474 sq ft, including 97,305 kWh of electricity and 23,846 therms of natural gas.
What are Gilman: 397 E 49th St's carbon emissions?
Gilman: 397 E 49th St reported 165 tCO₂e of greenhouse-gas emissions (5.4 kgCO₂e/ft²) for 2024.
Where is Gilman: 397 E 49th St?
Gilman: 397 E 49th St is in New York City, New York 11203. Its coordinates are 40.65237, -73.93145 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Gilman: 397 E 49th St and when was it built?
Gilman: 397 E 49th St has 30,474 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1927 as its year built. It is classed as multifamily housing.
Is Gilman: 397 E 49th St 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, “Gilman: 397 E 49th St, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/gilman-397-e-49th-st-4d1af19f (data as of October 2, 2026).