WINDSOR TOWER CONDOMINIUM
Multifamily Housing in New York City, NY · 207 PROSPECT PARK SW · 11218
At a glance
WINDSOR TOWER CONDOMINIUM is a 42,898-square-foot multifamily housing building at 207 PROSPECT PARK SW in New York City, New York, built in 1990. In its 2023 New York City benchmarking disclosure it reported an ENERGY STAR score of 94 out of 100 (grade A), a site energy-use intensity of 47.5 kBtu/ft² and 147 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 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 47.5 kBtu/ft² |
| Source EUI | 78.2 kBtu/ft² |
| GHG emissions | 147 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 203,604 kWh |
| Natural gas | 13,413 therms |
| Gross floor area | 42,898 sq ft |
| Source record | nyc:6626366:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 94 | -1 | 47.5 kBtu/ft² | 147 tCO₂e |
| 2022 | 95 | 53.5 kBtu/ft² | 144 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
- 207 PROSPECT PARK SW
- City
- New York City
- State
- New York
- ZIP
- 11218
- Coordinates
- 40.65226, -73.97258
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does WINDSOR TOWER 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. WINDSOR TOWER CONDOMINIUM'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 47.5 kBtu/ft² is about 37% below 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 3.4 kgCO₂e/ft² is about 35% below the group average of 5.2 kgCO₂e/ft².
At 42,898 sq ft, it is about 58% below the average floor area of 100,951 sq ft for those buildings. It was built in 1990, 38 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 WINDSOR TOWER CONDOMINIUM's energy performance changed over time?
BuildingCensus holds 2 New York City disclosures for WINDSOR TOWER CONDOMINIUM, covering report years 2022–2023. Its ENERGY STAR score went from 95 in 2022 to 94 in 2023 (-1 points); its best year on file was 2022, at 95. Site EUI moved from 53.5 kBtu/ft² (2022) to 47.5 kBtu/ft² (2023), a 11% decrease. Reported emissions went from 144 tCO₂e to 147 tCO₂e over the same span (up 2%).
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. WINDSOR TOWER CONDOMINIUM's 47.5 kBtu/ft² across 42,898 sq ft works out to about 2 billion Btu (597 MWh-equivalent) in 2023. Its source EUI of 78.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 203,604 kWh of electricity and 13,413 therms of natural gas for the year.
Which law requires WINDSOR TOWER CONDOMINIUM to report its energy use?
WINDSOR TOWER 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:6626366:2023). 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.
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- 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 WINDSOR TOWER CONDOMINIUM's energy grade?
WINDSOR TOWER CONDOMINIUM scores 94 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2023 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does WINDSOR TOWER CONDOMINIUM use?
Its 2023 site energy-use intensity was 47.5 kBtu/ft² (78.2 kBtu/ft² source) across 42,898 sq ft, including 203,604 kWh of electricity and 13,413 therms of natural gas.
What are WINDSOR TOWER CONDOMINIUM's carbon emissions?
WINDSOR TOWER CONDOMINIUM reported 147 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2023.
Where is WINDSOR TOWER CONDOMINIUM?
WINDSOR TOWER CONDOMINIUM is at 207 PROSPECT PARK SW, in New York City, New York 11218. Its coordinates are 40.65226, -73.97258 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is WINDSOR TOWER CONDOMINIUM and when was it built?
WINDSOR TOWER CONDOMINIUM has 42,898 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1990 as its year built. It is classed as multifamily housing.
Is WINDSOR TOWER 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, “WINDSOR TOWER CONDOMINIUM, New York City, New York — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/windsor-tower-condominium-85998c4e (data as of October 2, 2026).