3103 Realty LLC
Multifamily Housing in New York City, NY · 308 South 3rd Street · 11211
At a glance
3103 Realty LLC is a 26,568-square-foot multifamily housing building at 308 South 3rd Street in New York City, New York, built in 1914. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 70.0 kBtu/ft² and 115 tCO₂e of greenhouse-gas emissions. That score is higher than 82% 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 | 94 (band A) |
| Site EUI | 70.0 kBtu/ft² |
| Source EUI | 91.1 kBtu/ft² |
| GHG emissions | 115 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 78,167 kWh |
| Natural gas | 15,929 therms |
| Water use | 1,685 kgal |
| Gross floor area | 26,568 sq ft |
| Source record | nyc:7553534:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 94 | -3 | 70.0 kBtu/ft² | 115 tCO₂e |
| 2023 | 97 | +9 | 61.5 kBtu/ft² | 102 tCO₂e |
| 2022 | 88 | 80.9 kBtu/ft² | 128 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
- 308 South 3rd Street
- City
- New York City
- State
- New York
- ZIP
- 11211
- Coordinates
- 40.70974, -73.95494
Within ~1 km
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How does 3103 Realty LLC 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. 3103 Realty LLC's ENERGY STAR score of 94 compares with an average of 63 across the 22,829 that report a score; it scores higher than 82% of them and lower than 17%. Its site EUI of 70.0 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 4.3 kgCO₂e/ft² is about 17% below the group average of 5.2 kgCO₂e/ft².
At 26,568 sq ft, it is about 74% below the average floor area of 100,951 sq ft for those buildings. It was built in 1914, 38 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 3103 Realty LLC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 3103 Realty LLC, covering report years 2022–2024. Its ENERGY STAR score went from 88 in 2022 to 94 in 2024 (+6 points); its best year on file was 2023, at 97. Site EUI moved from 80.9 kBtu/ft² (2022) to 70.0 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 128 tCO₂e to 115 tCO₂e over the same span (down 10%).
What does an ENERGY STAR score of 94 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 94 means the building performs better than about 94% of its national peers. BuildingCensus bands the score into report-card grades; 94 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. 3103 Realty LLC's 70.0 kBtu/ft² across 26,568 sq ft works out to about 1.9 billion Btu (545 MWh-equivalent) in 2024. Its source EUI of 91.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 78,167 kWh of electricity, 15,929 therms of natural gas and 1,685 thousand gallons of water for the year.
Which law requires 3103 Realty LLC to report its energy use?
3103 Realty LLC 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:7553534:2024). 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
- (4306) - Seward Park Housing Corp (253 Grand St)· 26,565 sq ft · score 1 (D)
- 249 Grand Street· 26,565 sq ft · score 1 (D)
- Division: 48 Hester St.· 26,564 sq ft · score 95 (A)
- 3202 Bainbridge Ave· 26,563 sq ft · EUI 97.4 kBtu/ft²
- Pistilli Management - 2333 Loring Place North· 26,556 sq ft · score 98 (A)
- SIMCHA DEVELOPERS· 26,552 sq ft
- Multifamily Housing buildings in New York City· 33,022 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
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- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 3103 Realty LLC's energy grade?
3103 Realty LLC scores 94 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 3103 Realty LLC use?
Its 2024 site energy-use intensity was 70.0 kBtu/ft² (91.1 kBtu/ft² source) across 26,568 sq ft, including 78,167 kWh of electricity and 15,929 therms of natural gas.
What are 3103 Realty LLC's carbon emissions?
3103 Realty LLC reported 115 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is 3103 Realty LLC?
3103 Realty LLC is at 308 South 3rd Street, in New York City, New York 11211. Its coordinates are 40.70974, -73.95494 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 3103 Realty LLC and when was it built?
3103 Realty LLC has 26,568 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1914 as its year built. It is classed as multifamily housing.
Is 3103 Realty LLC 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, “3103 Realty LLC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/3103-realty-llc-e1c420be (data as of October 2, 2026).