Cap X - 1631 Grand Ave
Multifamily Housing in New York City, NY · 1631 Grand Ave · 10453
At a glance
Cap X - 1631 Grand Ave is a 46,800-square-foot multifamily housing building in New York City, New York, built in 1929. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 70.7 kBtu/ft² and 205 tCO₂e of greenhouse-gas emissions. That score is higher than 58% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 76 (band B) |
| Site EUI | 70.7 kBtu/ft² |
| Source EUI | 93.7 kBtu/ft² |
| GHG emissions | 205 tCO₂e |
| GHG intensity | 4.4 kgCO₂e/ft² |
| Electricity | 152,665 kWh |
| Natural gas | 27,861 therms |
| Water use | 3,267 kgal |
| Gross floor area | 46,800 sq ft |
| Source record | nyc:20314577:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 76 | -4 | 70.7 kBtu/ft² | 205 tCO₂e |
| 2022 | 80 | 72.3 kBtu/ft² | 197 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
- 1631 Grand Ave
- City
- New York City
- State
- New York
- ZIP
- 10453
- Coordinates
- 40.84674, -73.91556
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Cap X - 1631 Grand Ave 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. Cap X - 1631 Grand Ave's ENERGY STAR score of 76 compares with an average of 63 across the 22,829 that report a score; it scores higher than 58% of them and lower than 40%. Its site EUI of 70.7 kBtu/ft² is roughly in line with 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 4.4 kgCO₂e/ft² is about 15% below the group average of 5.2 kgCO₂e/ft².
At 46,800 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1929, 23 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 Cap X - 1631 Grand Ave's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Cap X - 1631 Grand Ave, covering report years 2022–2023. Its ENERGY STAR score went from 80 in 2022 to 76 in 2023 (-4 points); its best year on file was 2022, at 80. Site EUI moved from 72.3 kBtu/ft² (2022) to 70.7 kBtu/ft² (2023), a 2% decrease. Reported emissions went from 197 tCO₂e to 205 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 falls in band B — above median (70–84). 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. Cap X - 1631 Grand Ave's 70.7 kBtu/ft² across 46,800 sq ft works out to about 3.3 billion Btu (970 MWh-equivalent) in 2023. Its source EUI of 93.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 152,665 kWh of electricity, 27,861 therms of natural gas and 3,267 thousand gallons of water for the year.
Which law requires Cap X - 1631 Grand Ave to report its energy use?
Cap X - 1631 Grand Ave 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 2023 disclosure (source record nyc:20314577:2023). 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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- Isaac Dahan Real Estate 110 Broadway· 46,781 sq ft · score 69 (C)
- 11-35 45th Avenue· 46,778 sq ft · score 88 (A)
- 615 Pelham Parkway North· 46,777 sq ft
- 910 Dekalb Avenue: 910 Dekalb Avenue· 46,777 sq ft · score 73 (B)
- 8602 Ridge Boulevard· 46,767 sq ft · score 68 (C)
- 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 Cap X - 1631 Grand Ave's energy grade?
Cap X - 1631 Grand Ave scores 76 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Cap X - 1631 Grand Ave use?
Its 2023 site energy-use intensity was 70.7 kBtu/ft² (93.7 kBtu/ft² source) across 46,800 sq ft, including 152,665 kWh of electricity and 27,861 therms of natural gas.
What are Cap X - 1631 Grand Ave's carbon emissions?
Cap X - 1631 Grand Ave reported 205 tCO₂e of greenhouse-gas emissions (4.4 kgCO₂e/ft²) for 2023.
Where is Cap X - 1631 Grand Ave?
Cap X - 1631 Grand Ave is in New York City, New York 10453. Its coordinates are 40.84674, -73.91556 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Cap X - 1631 Grand Ave and when was it built?
Cap X - 1631 Grand Ave has 46,800 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1929 as its year built. It is classed as multifamily housing.
Is Cap X - 1631 Grand Ave covered by Local Law 84 (LL84)?
Yes — it appears in the 2023 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, “Cap X - 1631 Grand Ave, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/cap-x-1631-grand-ave-5ecacbb8 (data as of October 2, 2026).