825 Walton Avenue
Multifamily Housing in New York City, NY · 10451
At a glance
825 Walton Avenue is a 48,734-square-foot multifamily housing building in New York City, New York, built in 1924. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 100 out of 100 (grade A), a site energy-use intensity of 9.0 kBtu/ft² and 45 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 100 (band A) |
| Site EUI | 9.0 kBtu/ft² |
| Source EUI | 21.9 kBtu/ft² |
| GHG emissions | 45 tCO₂e |
| GHG intensity | 0.9 kgCO₂e/ft² |
| Electricity | 101,520 kWh |
| Natural gas | 910 therms |
| Water use | 2,209 kgal |
| Gross floor area | 48,734 sq ft |
| Source record | nyc:23359019:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 100 | +7 | 9.0 kBtu/ft² | 45 tCO₂e |
| 2023 | 93 | -1 | 69.2 kBtu/ft² | 259 tCO₂e |
| 2022 | 94 | 72.2 kBtu/ft² | 247 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
- 825 Walton Avenue
- City
- New York City
- State
- New York
- ZIP
- 10451
- Coordinates
- 40.82572, -73.92503
Within ~1 km
Nearby benchmarked buildings
- Concourse Villagescore —
Multifamily Housing · 1,753,000 sq ft
- Benchmarking Group - 88score 100
Hospital (General Medical & Surgical) · 1,633,485 sq ft
Hospital (General Medical & Surgical) · 1,193,438 sq ft
- MORRISANIA AIR RIGHTS CAMPUSscore 30
Multifamily Housing · 1,006,300 sq ft
- MELROSEscore 5
Multifamily Housing · 983,100 sq ft
- 773-779 Concourse Villagescore 1
Multifamily Housing · 876,498 sq ft
See also: most efficient in New York City · biggest emitters
How does 825 Walton Avenue 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. 825 Walton Avenue's ENERGY STAR score of 100 compares with an average of 63 across the 22,829 that report a score; it scores higher than 90% of them. Its site EUI of 9.0 kBtu/ft² is about 88% 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 0.9 kgCO₂e/ft² is about 82% below the group average of 5.2 kgCO₂e/ft².
At 48,734 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1924, 28 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 825 Walton Avenue's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 825 Walton Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 94 in 2022 to 100 in 2024 (+6 points). Site EUI moved from 72.2 kBtu/ft² (2022) to 9.0 kBtu/ft² (2024), a 88% decrease. Reported emissions went from 247 tCO₂e to 45 tCO₂e over the same span (down 82%).
What does an ENERGY STAR score of 100 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: 100 is the top of the scale. BuildingCensus bands the score into report-card grades; 100 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 825 Walton Avenue's 9.0 kBtu/ft² across 48,734 sq ft works out to about 0.4 billion Btu (129 MWh-equivalent) in 2024. Its source EUI of 21.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 101,520 kWh of electricity, 910 therms of natural gas and 2,209 thousand gallons of water for the year.
Which law requires 825 Walton Avenue to report its energy use?
825 Walton Avenue 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:23359019:2024). 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
- Lustar Realty Corp· 48,720 sq ft · score 62 (C)
- 3102 Brighton· 48,720 sq ft · score 74 (B)
- 155 Perry Street· 48,708 sq ft · score 55 (C)
- Esra Management LLC - 1212 Ocean Avenue· 48,700 sq ft · score 76 (B)
- 1212 Ocean Avenue· 48,700 sq ft · score 88 (A)
- Lustar Realty Corp· 48,700 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 825 Walton Avenue's energy grade?
825 Walton Avenue scores 100 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 825 Walton Avenue use?
Its 2024 site energy-use intensity was 9.0 kBtu/ft² (21.9 kBtu/ft² source) across 48,734 sq ft, including 101,520 kWh of electricity and 910 therms of natural gas.
What are 825 Walton Avenue's carbon emissions?
825 Walton Avenue reported 45 tCO₂e of greenhouse-gas emissions (0.9 kgCO₂e/ft²) for 2024.
Where is 825 Walton Avenue?
825 Walton Avenue is in New York City, New York 10451. Its coordinates are 40.82572, -73.92503 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 825 Walton Avenue and when was it built?
825 Walton Avenue has 48,734 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1924 as its year built. It is classed as multifamily housing.
Is 825 Walton Avenue 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, “825 Walton Avenue, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/825-walton-avenue-16c770c3 (data as of October 2, 2026).