Flynn Hall
Office in New York City, NY · 300 Howard Avenue · 10301
At a glance
Flynn Hall is a 17,736-square-foot office building at 300 Howard Avenue in New York City, New York, built in 1935. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 98 out of 100 (grade A), a site energy-use intensity of 39.3 kBtu/ft² and 52 tCO₂e of greenhouse-gas emissions. That score is higher than 92% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 39.3 kBtu/ft² |
| Source EUI | 39.6 kBtu/ft² |
| GHG emissions | 52 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Gross floor area | 17,736 sq ft |
| Source record | nyc:15583895:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 98 | +2 | 39.3 kBtu/ft² | 52 tCO₂e |
| 2022 | 96 | 53.2 kBtu/ft² | 70 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
- 300 Howard Avenue
- City
- New York City
- State
- New York
- ZIP
- 10301
- Coordinates
- 40.62241, -74.08857
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Flynn Hall compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Flynn Hall's ENERGY STAR score of 98 compares with an average of 72 across the 2,519 that report a score; it scores higher than 92% of them and lower than 6%. Its site EUI of 39.3 kBtu/ft² is about 39% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.9 kgCO₂e/ft² is about half of the group average of 5.8 kgCO₂e/ft².
At 17,736 sq ft, it is about 91% below the average floor area of 205,440 sq ft for those buildings. It was built in 1935, 5 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Flynn Hall's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Flynn Hall, covering report years 2022–2023. Its ENERGY STAR score went from 96 in 2022 to 98 in 2023 (+2 points). Site EUI moved from 53.2 kBtu/ft² (2022) to 39.3 kBtu/ft² (2023), a 26% decrease. Reported emissions went from 70 tCO₂e to 52 tCO₂e over the same span (down 26%).
What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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. Flynn Hall's 39.3 kBtu/ft² across 17,736 sq ft works out to about 0.7 billion Btu (204 MWh-equivalent) in 2023. Its source EUI of 39.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher.
Which law requires Flynn Hall to report its energy use?
Flynn Hall 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 2023 disclosure (source record nyc:15583895:2023). 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 office buildings in New York City
- ACS_8380_Kingsbridge· 17,600 sq ft · score 99 (A)
- DCAS_904_Bronx Neighborhood Building· 17,364 sq ft · score 79 (B)
- Cement & Concrete Workers Pension Fund Holding Corp· 17,231 sq ft · score 47 (D)
- 108 Jewel St - 3337703· 17,075 sq ft
- 108 Jewel St - 3337702· 17,075 sq ft
- 108 Jewel St - 3337704· 17,075 sq ft
- Office buildings in New York City· 3,384 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 Flynn Hall's energy grade?
Flynn Hall scores 98 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Flynn Hall use?
Its 2023 site energy-use intensity was 39.3 kBtu/ft² (39.6 kBtu/ft² source) across 17,736 sq ft.
What are Flynn Hall's carbon emissions?
Flynn Hall reported 52 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2023.
Where is Flynn Hall?
Flynn Hall is at 300 Howard Avenue, in New York City, New York 10301. Its coordinates are 40.62241, -74.08857 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Flynn Hall and when was it built?
Flynn Hall has 17,736 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1935 as its year built. It is classed as office.
Is Flynn Hall covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Flynn Hall, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/flynn-hall-6ad27279 (data as of October 2, 2026).