The Walton Condominium
Multifamily Housing in New York City, NY · 104 W 70 St · 10023
At a glance
The Walton Condominium is a 110,107-square-foot multifamily housing building at 104 W 70 St in New York City, New York, built in 1903. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 61 out of 100 (grade C), a site energy-use intensity of 64.1 kBtu/ft² and 617 tCO₂e of greenhouse-gas emissions. That score is higher than 42% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 61 (band C) |
| Site EUI | 64.1 kBtu/ft² |
| Source EUI | 102.8 kBtu/ft² |
| GHG emissions | 617 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 684,360 kWh |
| Natural gas | 1,393 therms |
| Gross floor area | 110,107 sq ft |
| Source record | nyc:2789837:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 61 | -19 | 64.1 kBtu/ft² | 617 tCO₂e |
| 2023 | 80 | +13 | 57.7 kBtu/ft² | 528 tCO₂e |
| 2022 | 67 | 69.5 kBtu/ft² | 590 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 104 W 70 St
- City
- New York City
- State
- New York
- ZIP
- 10023
- Coordinates
- 40.77622, -73.98002
Within ~1 km
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How does The Walton Condominium 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. The Walton Condominium's ENERGY STAR score of 61 compares with an average of 63 across the 22,829 that report a score; it scores higher than 42% of them and lower than 58%. Its site EUI of 64.1 kBtu/ft² is about 14% 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 5.6 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 110,107 sq ft, it is roughly in line with the average floor area of 100,951 sq ft for those buildings. It was built in 1903, 49 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.
How has The Walton Condominium's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for The Walton Condominium, covering report years 2022–2024. Its ENERGY STAR score went from 67 in 2022 to 61 in 2024 (-6 points); its best year on file was 2023, at 80. Site EUI moved from 69.5 kBtu/ft² (2022) to 64.1 kBtu/ft² (2024), a 8% decrease. Reported emissions went from 590 tCO₂e to 617 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 61 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 61 means the building performs better than about 61% of its national peers. BuildingCensus bands the score into report-card grades; 61 falls in band C — below median (55–69). It sits 14 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. The Walton Condominium's 64.1 kBtu/ft² across 110,107 sq ft works out to about 7.1 billion Btu (2,068 MWh-equivalent) in 2024. Its source EUI of 102.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 684,360 kWh of electricity and 1,393 therms of natural gas for the year.
Which law requires The Walton Condominium to report its energy use?
The Walton Condominium 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:2789837:2024). 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
- SUTTER AVENUE-UNION STREET· 110,100 sq ft · score 91 (A)
- XX(7412) - Southgate - 414 (414 East 52nd St)· 110,052 sq ft
- Woodrow Wilson Condominium (255 Eastern Parkway)· 110,015 sq ft · score 43 (D)
- RED HOOK EAST - Bldg #1 - NGrid - 606 CLINTON ST· 110,000 sq ft · EUI 263.7 kBtu/ft²
- 1080 Fifth Ave· 110,000 sq ft · score 14 (D)
- RED HOOK EAST - Bldg #3 - NGrid - 626 CLINTON ST· 110,000 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 The Walton Condominium's energy grade?
The Walton Condominium scores 61 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Walton Condominium use?
Its 2024 site energy-use intensity was 64.1 kBtu/ft² (102.8 kBtu/ft² source) across 110,107 sq ft, including 684,360 kWh of electricity and 1,393 therms of natural gas.
What are The Walton Condominium's carbon emissions?
The Walton Condominium reported 617 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2024.
Where is The Walton Condominium?
The Walton Condominium is at 104 W 70 St, in New York City, New York 10023. Its coordinates are 40.77622, -73.98002 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is The Walton Condominium and when was it built?
The Walton Condominium has 110,107 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1903 as its year built. It is classed as multifamily housing.
Is The Walton Condominium 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, “The Walton Condominium, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/the-walton-condominium-1f2485f4 (data as of October 2, 2026).