Turtle Bay House
Multifamily Housing in New York City, NY · 249 East 48th St · 10017
At a glance
Turtle Bay House is a 176,129-square-foot multifamily housing building at 249 East 48th St in New York City, New York, built in 1959. In its 2022 New York City benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 83.6 kBtu/ft² and 875 tCO₂e of greenhouse-gas emissions. That score is higher than 36% of the 22,829 scored multifamily housing buildings in New York City.
Local Law 84 (LL84) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 55 (band C) |
| Site EUI | 83.6 kBtu/ft² |
| Source EUI | 117.1 kBtu/ft² |
| GHG emissions | 875 tCO₂e |
| GHG intensity | 5.0 kgCO₂e/ft² |
| Electricity | 864,344 kWh |
| Water use | 6,223 kgal |
| Gross floor area | 176,129 sq ft |
| Source record | nyc:26710187:2022 |
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
- 249 East 48th St
- City
- New York City
- State
- New York
- ZIP
- 10017
- Coordinates
- 40.75411, -73.97056
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does Turtle Bay House 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. Turtle Bay House's ENERGY STAR score of 55 compares with an average of 63 across the 22,829 that report a score; it scores higher than 36% of them and lower than 63%. Its site EUI of 83.6 kBtu/ft² is about 12% 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 5.0 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².
At 176,129 sq ft, it is about 74% above the average floor area of 100,951 sq ft for those buildings. It was built in 1959, 7 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.
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. Turtle Bay House's 83.6 kBtu/ft² across 176,129 sq ft works out to about 14.7 billion Btu (4,315 MWh-equivalent) in 2022. Its source EUI of 117.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 864,344 kWh of electricity and 6,223 thousand gallons of water for the year.
Which law requires Turtle Bay House to report its energy use?
Turtle Bay House 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 2022 disclosure (source record nyc:26710187:2022). 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
- 138-25 31st Drive· 176,061 sq ft · score 58 (C)
- 210 Amsterdam Avenue - 40508· 176,054 sq ft · score 11 (D)
- 820 Thieriot Ave· 176,054 sq ft · score 1 (D)
- 820 Thieriot· 176,054 sq ft · score 85 (A)
- 38-20 Bowne Street Flushing· 176,033 sq ft · score 14 (D)
- Blossom Gardens Apartments Inc· 175,941 sq ft · EUI 31.7 kBtu/ft²
- 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 Turtle Bay House's energy grade?
Turtle Bay House scores 55 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2022 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Turtle Bay House use?
Its 2022 site energy-use intensity was 83.6 kBtu/ft² (117.1 kBtu/ft² source) across 176,129 sq ft, including 864,344 kWh of electricity.
What are Turtle Bay House's carbon emissions?
Turtle Bay House reported 875 tCO₂e of greenhouse-gas emissions (5.0 kgCO₂e/ft²) for 2022.
Where is Turtle Bay House?
Turtle Bay House is at 249 East 48th St, in New York City, New York 10017. Its coordinates are 40.75411, -73.97056 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Turtle Bay House and when was it built?
Turtle Bay House has 176,129 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1959 as its year built. It is classed as multifamily housing.
Is Turtle Bay House covered by Local Law 84 (LL84)?
Yes — it appears in the 2022 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, “Turtle Bay House, New York City, New York — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/turtle-bay-house-22e0089c (data as of October 2, 2026).