M Rapaport: 18 East 48th Street
Office in New York City, NY · 18 E 48th St · 10017
At a glance
M Rapaport: 18 East 48th Street is a 114,874-square-foot office building at 18 E 48th St in New York City, New York, built in 1928. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 83.1 kBtu/ft² and 850 tCO₂e of greenhouse-gas emissions. That score is higher than 27% of the 2,519 scored office buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 83.1 kBtu/ft² |
| Source EUI | 157.0 kBtu/ft² |
| GHG emissions | 850 tCO₂e |
| GHG intensity | 7.4 kgCO₂e/ft² |
| Electricity | 1,307,835 kWh |
| Natural gas | 12,173 therms |
| Water use | 2,049 kgal |
| Gross floor area | 114,874 sq ft |
| Source record | nyc:3538289:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | -11 | 83.1 kBtu/ft² | 850 tCO₂e |
| 2023 | 75 | +5 | 59.6 kBtu/ft² | 628 tCO₂e |
| 2022 | 70 | 68.1 kBtu/ft² | 588 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
- 18 E 48th St
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75686, -73.97713
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does M Rapaport: 18 East 48th Street compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. M Rapaport: 18 East 48th Street's ENERGY STAR score of 64 compares with an average of 72 across the 2,519 that report a score; it scores higher than 27% of them and lower than 71%. Its site EUI of 83.1 kBtu/ft² is about 29% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.4 kgCO₂e/ft² is about 28% above the group average of 5.8 kgCO₂e/ft².
At 114,874 sq ft, it is about 44% below the average floor area of 205,440 sq ft for those buildings. It was built in 1928, 12 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has M Rapaport: 18 East 48th Street's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for M Rapaport: 18 East 48th Street, covering report years 2022–2024. Its ENERGY STAR score went from 70 in 2022 to 64 in 2024 (-6 points); its best year on file was 2023, at 75. Site EUI moved from 68.1 kBtu/ft² (2022) to 83.1 kBtu/ft² (2024), an 22% increase. Reported emissions went from 588 tCO₂e to 850 tCO₂e over the same span (up 45%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. M Rapaport: 18 East 48th Street's 83.1 kBtu/ft² across 114,874 sq ft works out to about 9.5 billion Btu (2,798 MWh-equivalent) in 2024. Its source EUI of 157.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,307,835 kWh of electricity, 12,173 therms of natural gas and 2,049 thousand gallons of water for the year.
Which law requires M Rapaport: 18 East 48th Street to report its energy use?
M Rapaport: 18 East 48th Street 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:3538289:2024). 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 office buildings in New York City
- 24-28 West 25th St· 114,806 sq ft · EUI 49.6 kBtu/ft²
- 24-28 West 25 Street· 114,806 sq ft · score 93 (A)
- Feil - 25-20 Brooklyn Queens Expressway· 114,750 sq ft · score 2 (D)
- ABS - 8 West 38th St· 114,724 sq ft · score 76 (B)
- Stonebridge Companies : 144-152 EAST 48 STREET· 114,500 sq ft · score 26 (D)
- 43 West 36th Street· 114,319 sq ft
- Office buildings in New York City· 3,384 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 M Rapaport: 18 East 48th Street's energy grade?
M Rapaport: 18 East 48th Street scores 64 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 M Rapaport: 18 East 48th Street use?
Its 2024 site energy-use intensity was 83.1 kBtu/ft² (157.0 kBtu/ft² source) across 114,874 sq ft, including 1,307,835 kWh of electricity and 12,173 therms of natural gas.
What are M Rapaport: 18 East 48th Street's carbon emissions?
M Rapaport: 18 East 48th Street reported 850 tCO₂e of greenhouse-gas emissions (7.4 kgCO₂e/ft²) for 2024.
Where is M Rapaport: 18 East 48th Street?
M Rapaport: 18 East 48th Street is at 18 E 48th St, in New York City, New York 10017. Its coordinates are 40.75686, -73.97713 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is M Rapaport: 18 East 48th Street and when was it built?
M Rapaport: 18 East 48th Street has 114,874 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1928 as its year built. It is classed as office.
Is M Rapaport: 18 East 48th Street 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, “M Rapaport: 18 East 48th Street, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/m-rapaport-18-east-48th-street-90e3a6f5 (data as of October 2, 2026).