The Daniel Webster Owners Corp
Multifamily Housing in New York City, NY · 345 Webster Avenue · 11230
At a glance
The Daniel Webster Owners Corp is a 158,230-square-foot multifamily housing building at 345 Webster Avenue in New York City, New York, built in 1959. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 73 out of 100 (grade B), a site energy-use intensity of 74.9 kBtu/ft² and 951 tCO₂e of greenhouse-gas emissions. That score is higher than 54% 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 | 73 (band B) |
| Site EUI | 74.9 kBtu/ft² |
| Source EUI | 93.2 kBtu/ft² |
| GHG emissions | 951 tCO₂e |
| GHG intensity | 6.0 kgCO₂e/ft² |
| Electricity | 451,751 kWh |
| Natural gas | 1,618 therms |
| Water use | 7,507 kgal |
| Gross floor area | 158,230 sq ft |
| Source record | nyc:2800419:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 73 | +7 | 74.9 kBtu/ft² | 951 tCO₂e |
| 2023 | 66 | -8 | 77.7 kBtu/ft² | 968 tCO₂e |
| 2022 | 74 | 78.4 kBtu/ft² | 939 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
- 345 Webster Avenue
- City
- New York City
- State
- New York
- ZIP
- 11230
- Coordinates
- 40.63386, -73.96869
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does The Daniel Webster Owners Corp 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. The Daniel Webster Owners Corp's ENERGY STAR score of 73 compares with an average of 63 across the 22,829 that report a score; it scores higher than 54% of them and lower than 44%. Its site EUI of 74.9 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 6.0 kgCO₂e/ft² is about 16% above the group average of 5.2 kgCO₂e/ft².
At 158,230 sq ft, it is about 57% above the average floor area of 100,951 sq ft for those buildings. It was built in 1959, 7 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 The Daniel Webster Owners Corp's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for The Daniel Webster Owners Corp, covering report years 2022–2024. Its ENERGY STAR score went from 74 in 2022 to 73 in 2024 (-1 points); its best year on file was 2022, at 74. Site EUI moved from 78.4 kBtu/ft² (2022) to 74.9 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 939 tCO₂e to 951 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 73 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 73 means the building performs better than about 73% of its national peers. BuildingCensus bands the score into report-card grades; 73 falls in band B — above median (70–84). It sits 2 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. The Daniel Webster Owners Corp's 74.9 kBtu/ft² across 158,230 sq ft works out to about 11.9 billion Btu (3,473 MWh-equivalent) in 2024. Its source EUI of 93.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 451,751 kWh of electricity, 1,618 therms of natural gas and 7,507 thousand gallons of water for the year.
Which law requires The Daniel Webster Owners Corp to report its energy use?
The Daniel Webster Owners Corp 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:2800419:2024). 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
- DEPM 2882 - 200 East 59th Street· 158,224 sq ft · EUI 39.8 kBtu/ft²
- UPACA (SITE 5)· 158,200 sq ft · score 1 (D)
- Orsid-545 West End Avenue· 158,195 sq ft · score 86 (A)
- (NY03450) - 450 Tenants Corp.· 158,195 sq ft · score 88 (A)
- Z450 Tenants Corp. (FS)· 158,195 sq ft
- The 215 West 28th Street Condominium (215 West 28th Street)· 158,187 sq ft · score 53 (D)
- 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 The Daniel Webster Owners Corp's energy grade?
The Daniel Webster Owners Corp scores 73 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Daniel Webster Owners Corp use?
Its 2024 site energy-use intensity was 74.9 kBtu/ft² (93.2 kBtu/ft² source) across 158,230 sq ft, including 451,751 kWh of electricity and 1,618 therms of natural gas.
What are The Daniel Webster Owners Corp's carbon emissions?
The Daniel Webster Owners Corp reported 951 tCO₂e of greenhouse-gas emissions (6.0 kgCO₂e/ft²) for 2024.
Where is The Daniel Webster Owners Corp?
The Daniel Webster Owners Corp is at 345 Webster Avenue, in New York City, New York 11230. Its coordinates are 40.63386, -73.96869 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Daniel Webster Owners Corp and when was it built?
The Daniel Webster Owners Corp has 158,230 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as multifamily housing.
Is The Daniel Webster Owners Corp 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, “The Daniel Webster Owners Corp, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-daniel-webster-owners-corp-f5f7df39 (data as of October 2, 2026).