WASHINGTON Bldgs 1-4, 15
Multifamily Housing in New York City, NY · 110 EAST 99TH STREET · 10029
At a glance
WASHINGTON Bldgs 1-4, 15 is a 3,094,106-square-foot multifamily housing building at 110 EAST 99TH STREET in New York City, New York, built in 1958. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 27.2 kBtu/ft² and 9,057 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 27.2 kBtu/ft² |
| Source EUI | 70.4 kBtu/ft² |
| GHG emissions | 9,057 tCO₂e |
| GHG intensity | 2.9 kgCO₂e/ft² |
| Electricity | 21,683,834 kWh |
| Natural gas | 102,064 therms |
| Gross floor area | 3,094,106 sq ft |
| Source record | nyc:2831094:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 27.2 kBtu/ft² | 9,057 tCO₂e | |
| 2023 | — | 26.1 kBtu/ft² | 8,178 tCO₂e | |
| 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 110 EAST 99TH STREET
- City
- New York City
- State
- New York
- ZIP
- 10029
- Coordinates
- 40.78836, -73.95086
Within ~1 km
Nearby benchmarked buildings
- WASHINGTON Bldgs 5-10score —
Multifamily Housing · 1,404,388 sq ft
- WASHINGTONscore 30
Multifamily Housing · 1,404,388 sq ft
Multifamily Housing · 1,384,883 sq ft
- CARVER Bldgs 1-6score 12
Multifamily Housing · 1,164,050 sq ft
- Annenbergscore —
Laboratory · 1,119,997 sq ft
- Benchmarking Group - 7score 98
Hospital (General Medical & Surgical) · 1,068,030 sq ft
See also: most efficient in New York City · biggest emitters
How does WASHINGTON Bldgs 1-4, 15 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 27.2 kBtu/ft² is about 64% 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 2.9 kgCO₂e/ft² is about 44% below the group average of 5.2 kgCO₂e/ft².
At 3,094,106 sq ft, it is about 2965% above the average floor area of 100,951 sq ft for those buildings. It was built in 1958, 6 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 WASHINGTON Bldgs 1-4, 15's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for WASHINGTON Bldgs 1-4, 15, covering report years 2022–2024. Site EUI moved from 26.1 kBtu/ft² (2023) to 27.2 kBtu/ft² (2024), an 4% increase. Reported emissions went from 8,178 tCO₂e to 9,057 tCO₂e over the same span (up 11%).
What does a site EUI of 27.2 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. WASHINGTON Bldgs 1-4, 15's 27.2 kBtu/ft² across 3,094,106 sq ft works out to about 84.2 billion Btu (24,665 MWh-equivalent) in 2024. Its source EUI of 70.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 21,683,834 kWh of electricity and 102,064 therms of natural gas for the year.
Which law requires WASHINGTON Bldgs 1-4, 15 to report its energy use?
WASHINGTON Bldgs 1-4, 15 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:2831094:2024). 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
- Peter Cooper Village· 3,015,232 sq ft · score 85 (A)
- XXZNorth Shore Towers (Campus)· 2,963,431 sq ft
- Parkchester South - 2039387501· 2,907,967 sq ft · EUI 20.5 kBtu/ft²
- WHITMAN/INGERSOLL CAMPUS· 2,870,100 sq ft · score 44 (D)
- WHITMAN/INGERSOLL· 2,870,100 sq ft
- 1980-2040 East Tremont Avenue - Parent Property· 2,820,651 sq ft · score 1 (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 WASHINGTON Bldgs 1-4, 15's energy grade?
WASHINGTON Bldgs 1-4, 15 did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 27.2 kBtu/ft².
How much energy does WASHINGTON Bldgs 1-4, 15 use?
Its 2024 site energy-use intensity was 27.2 kBtu/ft² (70.4 kBtu/ft² source) across 3,094,106 sq ft, including 21,683,834 kWh of electricity and 102,064 therms of natural gas.
What are WASHINGTON Bldgs 1-4, 15's carbon emissions?
WASHINGTON Bldgs 1-4, 15 reported 9,057 tCO₂e of greenhouse-gas emissions (2.9 kgCO₂e/ft²) for 2024.
Where is WASHINGTON Bldgs 1-4, 15?
WASHINGTON Bldgs 1-4, 15 is at 110 EAST 99TH STREET, in New York City, New York 10029. Its coordinates are 40.78836, -73.95086 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is WASHINGTON Bldgs 1-4, 15 and when was it built?
WASHINGTON Bldgs 1-4, 15 has 3,094,106 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1958 as its year built. It is classed as multifamily housing.
Is WASHINGTON Bldgs 1-4, 15 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).
Working with New York City building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “WASHINGTON Bldgs 1-4, 15, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/washington-bldgs-1-4-15-74a4ad7d (data as of October 2, 2026).