23 West / M-H REALTY LLC
Multifamily Housing in New York City, NY · 23 West Street · 11222
At a glance
23 West / M-H REALTY LLC is a 259,713-square-foot multifamily housing building at 23 West Street in New York City, New York, built in 2021.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Natural gas | 85,197 therms |
| Gross floor area | 259,713 sq ft |
| Source record | nyc:26579134:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | — | |
| 2023 | 89 | -6 | 48.4 kBtu/ft² | 938 tCO₂e |
| 2022 | 95 | 40.4 kBtu/ft² | 726 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
- 23 West Street
- City
- New York City
- State
- New York
- ZIP
- 11222
- Coordinates
- 40.72700, -73.95880
Within ~1 km
Nearby benchmarked buildings
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- 25 Kentscore —
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See also: most efficient in New York City · biggest emitters
How does 23 West / M-H REALTY LLC 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.
At 259,713 sq ft, it is about 157% above the average floor area of 100,951 sq ft for those buildings. It was built in 2021, 69 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 23 West / M-H REALTY LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 23 West / M-H REALTY LLC, covering report years 2022–2024. Its ENERGY STAR score went from 95 in 2022 to 89 in 2023 (-6 points); its best year on file was 2022, at 95. Site EUI moved from 40.4 kBtu/ft² (2022) to 48.4 kBtu/ft² (2023), an 20% increase. Reported emissions went from 726 tCO₂e to 938 tCO₂e over the same span (up 29%).
Which law requires 23 West / M-H REALTY LLC to report its energy use?
23 West / M-H REALTY LLC 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:26579134:2024). 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
- 185 Broadway/7 Dey· 259,643 sq ft · score 70 (B)
- Glenwood - The Belmont· 259,589 sq ft · score 40 (D)
- 2350 Broadway· 259,558 sq ft · score 18 (D)
- 203 Newport Street· 259,309 sq ft · score 100 (A)
- Beech Hills Corp 2 PARENT· 258,968 sq ft · score 62 (C)
- 150 East 52nd Street (Plaza 52 LLC)· 258,807 sq ft · score 87 (A)
- 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 23 West / M-H REALTY LLC's energy grade?
23 West / M-H REALTY LLC did not report an ENERGY STAR score in its 2024 disclosure.
How much energy does 23 West / M-H REALTY LLC use?
No energy-use intensity was reported for 2024.
What are 23 West / M-H REALTY LLC's carbon emissions?
No greenhouse-gas emissions figure was reported for 2024.
Where is 23 West / M-H REALTY LLC?
23 West / M-H REALTY LLC is at 23 West Street, in New York City, New York 11222. Its coordinates are 40.72700, -73.95880 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 23 West / M-H REALTY LLC and when was it built?
23 West / M-H REALTY LLC has 259,713 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2021 as its year built. It is classed as multifamily housing.
Is 23 West / M-H REALTY LLC 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, “23 West / M-H REALTY LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/23-west-m-h-realty-llc-a7223e76 (data as of October 2, 2026).