AJ Property Mgmt: 231 WEST 29 ST
Office in New York City, NY · 231 WEST 29 ST · 10001
At a glance
AJ Property Mgmt: 231 WEST 29 ST is a 154,426-square-foot office building in New York City, New York, built in 1927. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 56.8 kBtu/ft² and 759 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 56.8 kBtu/ft² |
| Source EUI | 86.2 kBtu/ft² |
| GHG emissions | 759 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 728,785 kWh |
| Natural gas | 198 therms |
| Water use | 3,173 kgal |
| Gross floor area | 154,426 sq ft |
| Source record | nyc:4536631:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 56.8 kBtu/ft² | 759 tCO₂e | |
| 2023 | — | 59.9 kBtu/ft² | 782 tCO₂e | |
| 2022 | — | 59.4 kBtu/ft² | 713 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
- 231 WEST 29 ST
- City
- New York City
- State
- New York
- ZIP
- 10001
- Coordinates
- 40.74830, -73.99394
Within ~1 km
Nearby benchmarked buildings
- Hudson Yards Cogen Campusscore —
Other · 7,739,076 sq ft
- Manhattan Westscore —
Other · 4,153,954 sq ft
- 20-30 Hudson Yardsscore —
Office · 3,810,623 sq ft
- Penn Southscore 95
Multifamily Housing · 3,391,963 sq ft
- 50 Hudson Yardsscore 76
Office · 2,944,455 sq ft
- The Spiral - 66 Hudson Boulevardscore 82
Office · 2,830,000 sq ft
See also: most efficient in New York City · biggest emitters
How does AJ Property Mgmt: 231 WEST 29 ST 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. Its site EUI of 56.8 kBtu/ft² is about 12% 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 4.9 kgCO₂e/ft² is about 15% below the group average of 5.8 kgCO₂e/ft².
At 154,426 sq ft, it is about 25% below the average floor area of 205,440 sq ft for those buildings. It was built in 1927, 13 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 AJ Property Mgmt: 231 WEST 29 ST's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for AJ Property Mgmt: 231 WEST 29 ST, covering report years 2022–2024. Site EUI moved from 59.4 kBtu/ft² (2022) to 56.8 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 713 tCO₂e to 759 tCO₂e over the same span (up 6%).
What does a site EUI of 56.8 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. AJ Property Mgmt: 231 WEST 29 ST's 56.8 kBtu/ft² across 154,426 sq ft works out to about 8.8 billion Btu (2,571 MWh-equivalent) in 2024. Its source EUI of 86.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 728,785 kWh of electricity, 198 therms of natural gas and 3,173 thousand gallons of water for the year.
Which law requires AJ Property Mgmt: 231 WEST 29 ST to report its energy use?
AJ Property Mgmt: 231 WEST 29 ST 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:4536631:2024). 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 office buildings in New York City
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- Related Retail Hub - 2· 154,051 sq ft · score 40 (D)
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- Commerce-Halsey, LLC· 153,816 sq ft · score 99 (A)
- 305 East 46th Street· 153,689 sq ft · score 70 (B)
- 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 AJ Property Mgmt: 231 WEST 29 ST's energy grade?
AJ Property Mgmt: 231 WEST 29 ST did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 56.8 kBtu/ft².
How much energy does AJ Property Mgmt: 231 WEST 29 ST use?
Its 2024 site energy-use intensity was 56.8 kBtu/ft² (86.2 kBtu/ft² source) across 154,426 sq ft, including 728,785 kWh of electricity and 198 therms of natural gas.
What are AJ Property Mgmt: 231 WEST 29 ST's carbon emissions?
AJ Property Mgmt: 231 WEST 29 ST reported 759 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is AJ Property Mgmt: 231 WEST 29 ST?
AJ Property Mgmt: 231 WEST 29 ST is in New York City, New York 10001. Its coordinates are 40.74830, -73.99394 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is AJ Property Mgmt: 231 WEST 29 ST and when was it built?
AJ Property Mgmt: 231 WEST 29 ST has 154,426 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1927 as its year built. It is classed as office.
Is AJ Property Mgmt: 231 WEST 29 ST 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, “AJ Property Mgmt: 231 WEST 29 ST, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/aj-property-mgmt-231-west-29-st-151ecebc (data as of October 2, 2026).