Westmont - 29850
Multifamily Housing in New York City, NY · 730 Columbus Ave · 10025
At a glance
Westmont - 29850 is a 251,543-square-foot multifamily housing building at 730 Columbus Ave in New York City, New York, built in 1986. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 44.9 kBtu/ft² and 974 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 44.9 kBtu/ft² |
| Source EUI | 86.1 kBtu/ft² |
| GHG emissions | 974 tCO₂e |
| GHG intensity | 3.9 kgCO₂e/ft² |
| Electricity | 1,656,638 kWh |
| Natural gas | 46,033 therms |
| Water use | 9,749 kgal |
| Gross floor area | 251,543 sq ft |
| Source record | nyc:2814892:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 44.9 kBtu/ft² | 974 tCO₂e | |
| 2023 | 75 | +4 | 47.9 kBtu/ft² | 1,050 tCO₂e |
| 2022 | 71 | 59.3 kBtu/ft² | 1,084 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
- 730 Columbus Ave
- City
- New York City
- State
- New York
- ZIP
- 10025
- Coordinates
- 40.79263, -73.96771
Within ~1 km
Nearby benchmarked buildings
- DOUGLASS I/DOUGLASS IIscore —
Multifamily Housing · 2,221,782 sq ft
- DOUGLASS I/DOUGLASS II CAMPUSscore 19
Multifamily Housing · 2,221,782 sq ft
- DOUGLASS Iscore —
Multifamily Housing · 1,393,098 sq ft
- 808 Columbus Avenuescore 25
Multifamily Housing · 632,743 sq ft
- 300 Central Park Westscore 88
Multifamily Housing · 585,905 sq ft
- 700 COLUMBUS AVENUEscore 88
Multifamily Housing · 567,548 sq ft
See also: most efficient in New York City · biggest emitters
How does Westmont - 29850 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. Its site EUI of 44.9 kBtu/ft² is about 40% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.9 kgCO₂e/ft² is about 26% below the group average of 5.2 kgCO₂e/ft².
At 251,543 sq ft, it is about 149% above the average floor area of 100,951 sq ft for those buildings. It was built in 1986, 34 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 Westmont - 29850's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Westmont - 29850, covering report years 2022–2024. Its ENERGY STAR score went from 71 in 2022 to 75 in 2023 (+4 points). Site EUI moved from 59.3 kBtu/ft² (2022) to 44.9 kBtu/ft² (2024), a 24% decrease. Reported emissions went from 1,084 tCO₂e to 974 tCO₂e over the same span (down 10%).
What does a site EUI of 44.9 kBtu/ft² mean?
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. Westmont - 29850's 44.9 kBtu/ft² across 251,543 sq ft works out to about 11.3 billion Btu (3,310 MWh-equivalent) in 2024. Its source EUI of 86.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,656,638 kWh of electricity, 46,033 therms of natural gas and 9,749 thousand gallons of water for the year.
Which law requires Westmont - 29850 to report its energy use?
Westmont - 29850 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:2814892:2024). 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
- CASSIDY-LAFAYETTE· 251,380 sq ft · score 3 (D)
- DEPM 1590 PARENT - 1088 Park Avenue / 61 East 88 Street· 251,331 sq ft · EUI 71.6 kBtu/ft²
- Orsid - 2 Columbus Avenue· 251,308 sq ft · score 53 (D)
- Halstead - 710 Park Ave· 251,250 sq ft · EUI 40.0 kBtu/ft²
- AKAM - 226-26 Union Turnpike· 251,244 sq ft · score 81 (B)
- Homebase III· 251,200 sq ft · score 52 (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 Westmont - 29850's energy grade?
Westmont - 29850 did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 44.9 kBtu/ft².
How much energy does Westmont - 29850 use?
Its 2024 site energy-use intensity was 44.9 kBtu/ft² (86.1 kBtu/ft² source) across 251,543 sq ft, including 1,656,638 kWh of electricity and 46,033 therms of natural gas.
What are Westmont - 29850's carbon emissions?
Westmont - 29850 reported 974 tCO₂e of greenhouse-gas emissions (3.9 kgCO₂e/ft²) for 2024.
Where is Westmont - 29850?
Westmont - 29850 is at 730 Columbus Ave, in New York City, New York 10025. Its coordinates are 40.79263, -73.96771 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Westmont - 29850 and when was it built?
Westmont - 29850 has 251,543 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as multifamily housing.
Is Westmont - 29850 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, “Westmont - 29850, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/westmont-29850-fdefe55c (data as of October 2, 2026).