Brownstone Lane II Condominium
Multifamily Housing in New York City, NY · 310 West 120th Street · 10027
At a glance
Brownstone Lane II Condominium is a 74,154-square-foot multifamily housing building at 310 West 120th Street in New York City, New York, built in 2003. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 63 out of 100 (grade C), a site energy-use intensity of 86.2 kBtu/ft² and 452 tCO₂e of greenhouse-gas emissions. That score is higher than 43% 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 | 63 (band C) |
| Site EUI | 86.2 kBtu/ft² |
| Source EUI | 138.1 kBtu/ft² |
| GHG emissions | 452 tCO₂e |
| GHG intensity | 6.1 kgCO₂e/ft² |
| Electricity | 590,113 kWh |
| Natural gas | 43,811 therms |
| Gross floor area | 74,154 sq ft |
| Source record | nyc:2745644:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 63 | +9 | 86.2 kBtu/ft² | 452 tCO₂e |
| 2022 | 54 | 98.2 kBtu/ft² | 447 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
- 310 West 120th Street
- City
- New York City
- State
- New York
- ZIP
- 10027
- Coordinates
- 40.80725, -73.95416
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Brownstone Lane II 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. Brownstone Lane II Condominium's ENERGY STAR score of 63 compares with an average of 63 across the 22,829 that report a score; it scores higher than 43% of them and lower than 56%. Its site EUI of 86.2 kBtu/ft² is about 15% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.1 kgCO₂e/ft² is about 17% above the group average of 5.2 kgCO₂e/ft².
At 74,154 sq ft, it is about 27% below the average floor area of 100,951 sq ft for those buildings. It was built in 2003, 51 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 Brownstone Lane II Condominium's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for Brownstone Lane II Condominium, covering report years 2022–2023. Its ENERGY STAR score went from 54 in 2022 to 63 in 2023 (+9 points). Site EUI moved from 98.2 kBtu/ft² (2022) to 86.2 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 447 tCO₂e to 452 tCO₂e over the same span (up 1%).
What does an ENERGY STAR score of 63 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 63 means the building performs better than about 63% of its national peers. BuildingCensus bands the score into report-card grades; 63 falls in band C — below median (55–69). It sits 12 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. Brownstone Lane II Condominium's 86.2 kBtu/ft² across 74,154 sq ft works out to about 6.4 billion Btu (1,873 MWh-equivalent) in 2023. Its source EUI of 138.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 590,113 kWh of electricity and 43,811 therms of natural gas for the year.
Which law requires Brownstone Lane II Condominium to report its energy use?
Brownstone Lane II 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 2023 disclosure (source record nyc:2745644:2023). 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
- Dov: 1370 51st St· 74,130 sq ft · score 78 (B)
- Ford_48-30 40th Street· 74,122 sq ft · score 99 (A)
- Buchbinder: 830 Broadway· 74,100 sq ft · EUI 54.4 kBtu/ft²
- WEST BRIGHTON II - Bldg#11 - NGrid - 155 ALASKA ST· 74,100 sq ft · EUI 3.8 kBtu/ft²
- 1460 Macombs Rd· 74,085 sq ft · score 4 (D)
- 894 Riverside Drive· 74,064 sq ft · score 100 (A)
- 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 Brownstone Lane II Condominium's energy grade?
Brownstone Lane II Condominium scores 63 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Brownstone Lane II Condominium use?
Its 2023 site energy-use intensity was 86.2 kBtu/ft² (138.1 kBtu/ft² source) across 74,154 sq ft, including 590,113 kWh of electricity and 43,811 therms of natural gas.
What are Brownstone Lane II Condominium's carbon emissions?
Brownstone Lane II Condominium reported 452 tCO₂e of greenhouse-gas emissions (6.1 kgCO₂e/ft²) for 2023.
Where is Brownstone Lane II Condominium?
Brownstone Lane II Condominium is at 310 West 120th Street, in New York City, New York 10027. Its coordinates are 40.80725, -73.95416 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Brownstone Lane II Condominium and when was it built?
Brownstone Lane II Condominium has 74,154 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2003 as its year built. It is classed as multifamily housing.
Is Brownstone Lane II Condominium 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, “Brownstone Lane II Condominium, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/brownstone-lane-ii-condominium-13d5eae2 (data as of October 2, 2026).