173 Harman Plaza
Multifamily Housing in New York City, NY · 173 Harman Street · 11221
At a glance
173 Harman Plaza is a 15,228-square-foot multifamily housing building at 173 Harman Street in New York City, New York, built in 1994. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 21.2 kBtu/ft² and 37 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 21.2 kBtu/ft² |
| Source EUI | 59.3 kBtu/ft² |
| GHG emissions | 37 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 94,536 kWh |
| Gross floor area | 15,228 sq ft |
| Source record | nyc:10565308:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 21.2 kBtu/ft² | 37 tCO₂e | |
| 2023 | — | 31.7 kBtu/ft² | 43 tCO₂e | |
| 2022 | — | 20.3 kBtu/ft² | 26 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
- 173 Harman Street
- City
- New York City
- State
- New York
- ZIP
- 11221
- Coordinates
- 40.69736, -73.92138
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 173 Harman Plaza 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 21.2 kBtu/ft² is about 72% 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 2.4 kgCO₂e/ft² is about half of the group average of 5.2 kgCO₂e/ft².
At 15,228 sq ft, it is about 85% below the average floor area of 100,951 sq ft for those buildings. It was built in 1994, 42 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 173 Harman Plaza's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 173 Harman Plaza, covering report years 2022–2024. Site EUI moved from 20.3 kBtu/ft² (2022) to 21.2 kBtu/ft² (2024), an 4% increase. Reported emissions went from 26 tCO₂e to 37 tCO₂e over the same span (up 42%).
What does a site EUI of 21.2 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. 173 Harman Plaza's 21.2 kBtu/ft² across 15,228 sq ft works out to about 0.3 billion Btu (95 MWh-equivalent) in 2024. Its source EUI of 59.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 94,536 kWh of electricity for the year.
Which law requires 173 Harman Plaza to report its energy use?
173 Harman Plaza 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:10565308:2024). 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
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- 1269 COLLEGE AVENUE· 15,165 sq ft
- 1259 COLLEGE AVENUE· 15,165 sq ft · EUI 25.6 kBtu/ft²
- 1265 COLLEGE AVENUE· 15,165 sq ft · EUI 25.5 kBtu/ft²
- STERLING PLACE REHABS (SAINT JOHNS-STERLING) - 1511 Sterling Pl· 15,160 sq ft · score 100 (A)
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- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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Frequently asked questions
What is 173 Harman Plaza's energy grade?
173 Harman Plaza did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 21.2 kBtu/ft².
How much energy does 173 Harman Plaza use?
Its 2024 site energy-use intensity was 21.2 kBtu/ft² (59.3 kBtu/ft² source) across 15,228 sq ft, including 94,536 kWh of electricity.
What are 173 Harman Plaza's carbon emissions?
173 Harman Plaza reported 37 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2024.
Where is 173 Harman Plaza?
173 Harman Plaza is at 173 Harman Street, in New York City, New York 11221. Its coordinates are 40.69736, -73.92138 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 173 Harman Plaza and when was it built?
173 Harman Plaza has 15,228 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1994 as its year built. It is classed as multifamily housing.
Is 173 Harman Plaza 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, “173 Harman Plaza, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/173-harman-plaza-bd1084f4 (data as of October 2, 2026).