Ash Management - 927 Flatbush Ave
Office in New York City, NY · 929 FLATBUSH AVENUE · 11226
At a glance
Ash Management - 927 Flatbush Ave is a 47,100-square-foot office building at 929 FLATBUSH AVENUE in New York City, New York, built in 1920. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 27.8 kBtu/ft² and 141 tCO₂e of greenhouse-gas emissions. That score is higher than 79% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 92 (band A) |
| Site EUI | 27.8 kBtu/ft² |
| Source EUI | 72.2 kBtu/ft² |
| GHG emissions | 141 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 338,930 kWh |
| Natural gas | 1,550 therms |
| Gross floor area | 47,100 sq ft |
| Source record | nyc:28511183:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | +3 | 27.8 kBtu/ft² | 141 tCO₂e |
| 2023 | 89 | +9 | 30.9 kBtu/ft² | 146 tCO₂e |
| 2022 | 80 | 41.7 kBtu/ft² | 153 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
- 929 FLATBUSH AVENUE
- City
- New York City
- State
- New York
- ZIP
- 11226
- Coordinates
- 40.64948, -73.95847
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Ash Management - 927 Flatbush Ave 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. Ash Management - 927 Flatbush Ave's ENERGY STAR score of 92 compares with an average of 72 across the 2,519 that report a score; it scores higher than 79% of them and lower than 19%. Its site EUI of 27.8 kBtu/ft² is about 57% 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 3.0 kgCO₂e/ft² is about half of the group average of 5.8 kgCO₂e/ft².
At 47,100 sq ft, it is about 77% below the average floor area of 205,440 sq ft for those buildings. It was built in 1920, 20 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 Ash Management - 927 Flatbush Ave's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Ash Management - 927 Flatbush Ave, covering report years 2022–2024. Its ENERGY STAR score went from 80 in 2022 to 92 in 2024 (+12 points). Site EUI moved from 41.7 kBtu/ft² (2022) to 27.8 kBtu/ft² (2024), a 33% decrease. Reported emissions went from 153 tCO₂e to 141 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 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. Ash Management - 927 Flatbush Ave's 27.8 kBtu/ft² across 47,100 sq ft works out to about 1.3 billion Btu (384 MWh-equivalent) in 2024. Its source EUI of 72.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 338,930 kWh of electricity and 1,550 therms of natural gas for the year.
Which law requires Ash Management - 927 Flatbush Ave to report its energy use?
Ash Management - 927 Flatbush Ave 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:28511183:2024). 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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- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is Ash Management - 927 Flatbush Ave's energy grade?
Ash Management - 927 Flatbush Ave scores 92 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 Ash Management - 927 Flatbush Ave use?
Its 2024 site energy-use intensity was 27.8 kBtu/ft² (72.2 kBtu/ft² source) across 47,100 sq ft, including 338,930 kWh of electricity and 1,550 therms of natural gas.
What are Ash Management - 927 Flatbush Ave's carbon emissions?
Ash Management - 927 Flatbush Ave reported 141 tCO₂e of greenhouse-gas emissions (3.0 kgCO₂e/ft²) for 2024.
Where is Ash Management - 927 Flatbush Ave?
Ash Management - 927 Flatbush Ave is at 929 FLATBUSH AVENUE, in New York City, New York 11226. Its coordinates are 40.64948, -73.95847 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Ash Management - 927 Flatbush Ave and when was it built?
Ash Management - 927 Flatbush Ave has 47,100 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1920 as its year built. It is classed as office.
Is Ash Management - 927 Flatbush Ave 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, “Ash Management - 927 Flatbush Ave, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/ash-management-927-flatbush-ave-2076170f (data as of October 2, 2026).