Rockrose - 300 Park Avenue South
Office in New York City, NY · 300 Park Avenue South · 10010
At a glance
Rockrose - 300 Park Avenue South is a 168,200-square-foot office building in New York City, New York, built in 1955. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 39.0 kBtu/ft² and 754 tCO₂e of greenhouse-gas emissions. That score is higher than 42% 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 | 75 (band B) |
| Site EUI | 39.0 kBtu/ft² |
| Source EUI | 109.1 kBtu/ft² |
| GHG emissions | 754 tCO₂e |
| GHG intensity | 4.5 kgCO₂e/ft² |
| Electricity | 1,920,783 kWh |
| Natural gas | 34 therms |
| Gross floor area | 168,200 sq ft |
| Source record | nyc:44143095:2024 |
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
- 300 Park Avenue South
- City
- New York City
- State
- New York
- ZIP
- 10010
- Coordinates
- 40.73995, -73.98655
Within ~1 km
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- One Madison Avenuescore —
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See also: most efficient in New York City · biggest emitters
How does Rockrose - 300 Park Avenue South 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. Rockrose - 300 Park Avenue South's ENERGY STAR score of 75 compares with an average of 72 across the 2,519 that report a score; it scores higher than 42% of them and lower than 56%. Its site EUI of 39.0 kBtu/ft² is about 40% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.5 kgCO₂e/ft² is about 23% below the group average of 5.8 kgCO₂e/ft².
At 168,200 sq ft, it is about 18% below the average floor area of 205,440 sq ft for those buildings. It was built in 1955, 15 years later 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.
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 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. Rockrose - 300 Park Avenue South's 39.0 kBtu/ft² across 168,200 sq ft works out to about 6.6 billion Btu (1,922 MWh-equivalent) in 2024. Its source EUI of 109.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,920,783 kWh of electricity and 34 therms of natural gas for the year.
Which law requires Rockrose - 300 Park Avenue South to report its energy use?
Rockrose - 300 Park Avenue South 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:44143095:2024). 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
- 401 Fifth Avenue - Upward· 168,164 sq ft · score 59 (C)
- The Blanchard· 168,000 sq ft · score 91 (A)
- 489 5th Avenue· 167,075 sq ft · score 72 (B)
- 218 W 40th Street· 166,315 sq ft · EUI 35.8 kBtu/ft²
- 820 2nd Avenue· 165,969 sq ft · score 90 (A)
- CBS-513· 165,625 sq ft · score 1 (D)
- 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 Rockrose - 300 Park Avenue South's energy grade?
Rockrose - 300 Park Avenue South scores 75 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Rockrose - 300 Park Avenue South use?
Its 2024 site energy-use intensity was 39.0 kBtu/ft² (109.1 kBtu/ft² source) across 168,200 sq ft, including 1,920,783 kWh of electricity and 34 therms of natural gas.
What are Rockrose - 300 Park Avenue South's carbon emissions?
Rockrose - 300 Park Avenue South reported 754 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2024.
Where is Rockrose - 300 Park Avenue South?
Rockrose - 300 Park Avenue South is in New York City, New York 10010. Its coordinates are 40.73995, -73.98655 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Rockrose - 300 Park Avenue South and when was it built?
Rockrose - 300 Park Avenue South has 168,200 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1955 as its year built. It is classed as office.
Is Rockrose - 300 Park Avenue South 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, “Rockrose - 300 Park Avenue South, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/rockrose-300-park-avenue-south-c6da7633 (data as of October 2, 2026).