1734 Townsend Ave - Mount Hope LL84
Multifamily Housing in New York City, NY · 1734 Townsend Ave · 10453
At a glance
1734 Townsend Ave - Mount Hope LL84 is a 26,490-square-foot multifamily housing building in New York City, New York, built in 1927. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 77.7 kBtu/ft² and 132 tCO₂e of greenhouse-gas emissions. That score is higher than 39% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 58 (band C) |
| Site EUI | 77.7 kBtu/ft² |
| Source EUI | 129.5 kBtu/ft² |
| GHG emissions | 132 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 212,649 kWh |
| Water use | 4,652 kgal |
| Gross floor area | 26,490 sq ft |
| Source record | nyc:7567162:2022 |
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
- 1734 Townsend Ave
- City
- New York City
- State
- New York
- ZIP
- 10453
- Coordinates
- 40.84719, -73.91155
Within ~1 km
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Mixed Use Property · 295,957 sq ft
See also: most efficient in New York City · biggest emitters
How does 1734 Townsend Ave - Mount Hope LL84 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. 1734 Townsend Ave - Mount Hope LL84's ENERGY STAR score of 58 compares with an average of 63 across the 22,829 that report a score; it scores higher than 39% of them and lower than 60%. Its site EUI of 77.7 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.0 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 26,490 sq ft, it is about 74% below the average floor area of 100,951 sq ft for those buildings. It was built in 1927, 25 years earlier 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.
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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. 1734 Townsend Ave - Mount Hope LL84's 77.7 kBtu/ft² across 26,490 sq ft works out to about 2.1 billion Btu (603 MWh-equivalent) in 2022. Its source EUI of 129.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 212,649 kWh of electricity and 4,652 thousand gallons of water for the year.
Which law requires 1734 Townsend Ave - Mount Hope LL84 to report its energy use?
1734 Townsend Ave - Mount Hope LL84 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 2022 disclosure (source record nyc:7567162:2022). 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
- Penn Gardens 2· 26,488 sq ft
- Penn Gardens 1· 26,488 sq ft · score 100 (A)
- 101 Dyckman Street· 26,480 sq ft
- Wavecrest - 991-995 East 167th Street· 26,480 sq ft · score 38 (D)
- 991-995 East 167th Street (Parent Property)· 26,480 sq ft · score 45 (D)
- 111 Dyckman Street· 26,479 sq ft
- 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 1734 Townsend Ave - Mount Hope LL84's energy grade?
1734 Townsend Ave - Mount Hope LL84 scores 58 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1734 Townsend Ave - Mount Hope LL84 use?
Its 2022 site energy-use intensity was 77.7 kBtu/ft² (129.5 kBtu/ft² source) across 26,490 sq ft, including 212,649 kWh of electricity.
What are 1734 Townsend Ave - Mount Hope LL84's carbon emissions?
1734 Townsend Ave - Mount Hope LL84 reported 132 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2022.
Where is 1734 Townsend Ave - Mount Hope LL84?
1734 Townsend Ave - Mount Hope LL84 is in New York City, New York 10453. Its coordinates are 40.84719, -73.91155 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 1734 Townsend Ave - Mount Hope LL84 and when was it built?
1734 Townsend Ave - Mount Hope LL84 has 26,490 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1927 as its year built. It is classed as multifamily housing.
Is 1734 Townsend Ave - Mount Hope LL84 covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “1734 Townsend Ave - Mount Hope LL84, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/1734-townsend-ave-mount-hope-ll84-03826977 (data as of October 2, 2026).