DPR_3602_Lefferts Historic House
Museum in New York City, NY · Ocean Ave at Flatbush Ave · 11215
At a glance
DPR_3602_Lefferts Historic House is a 3,185-square-foot museum building at Ocean Ave at Flatbush Ave in New York City, New York, built in 1783. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 26.1 kBtu/ft² and 10 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 26.1 kBtu/ft² |
| Source EUI | 73.1 kBtu/ft² |
| GHG emissions | 10 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 24,386 kWh |
| Gross floor area | 3,185 sq ft |
| Source record | nyc:21354490:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 26.1 kBtu/ft² | 10 tCO₂e | |
| 2023 | — | 21.1 kBtu/ft² | 7 tCO₂e | |
| 2022 | — | 3.7 kBtu/ft² | 1 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
- Ocean Ave at Flatbush Ave
- City
- New York City
- State
- New York
- ZIP
- 11215
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in New York City · biggest emitters
How does DPR_3602_Lefferts Historic House compare with other museum buildings in New York City?
The latest disclosures cover 76 museum buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 26.1 kBtu/ft² is about 77% below the average of 111.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.0 kgCO₂e/ft² is about 68% below the group average of 9.3 kgCO₂e/ft².
At 3,185 sq ft, it is about 98% below the average floor area of 131,184 sq ft for those buildings. It was built in 1783, 148 years earlier than the group's average year built (1932).
How has DPR_3602_Lefferts Historic House's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for DPR_3602_Lefferts Historic House, covering report years 2022–2024. Site EUI moved from 3.7 kBtu/ft² (2022) to 26.1 kBtu/ft² (2024), an 605% increase. Reported emissions went from 1 tCO₂e to 10 tCO₂e over the same span (up 858%).
What does a site EUI of 26.1 kBtu/ft² mean?
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. DPR_3602_Lefferts Historic House's 26.1 kBtu/ft² across 3,185 sq ft works out to about 0.1 billion Btu (24 MWh-equivalent) in 2024. Its source EUI of 73.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 24,386 kWh of electricity for the year.
Which law requires DPR_3602_Lefferts Historic House to report its energy use?
DPR_3602_Lefferts Historic 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 2024 disclosure (source record nyc:21354490:2024). 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.
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- Museum buildings in New York City· 76 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 DPR_3602_Lefferts Historic House's energy grade?
DPR_3602_Lefferts Historic House did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 26.1 kBtu/ft².
How much energy does DPR_3602_Lefferts Historic House use?
Its 2024 site energy-use intensity was 26.1 kBtu/ft² (73.1 kBtu/ft² source) across 3,185 sq ft, including 24,386 kWh of electricity.
What are DPR_3602_Lefferts Historic House's carbon emissions?
DPR_3602_Lefferts Historic House reported 10 tCO₂e of greenhouse-gas emissions (3.0 kgCO₂e/ft²) for 2024.
Where is DPR_3602_Lefferts Historic House?
DPR_3602_Lefferts Historic House is at Ocean Ave at Flatbush Ave, in New York City, New York 11215.
How big is DPR_3602_Lefferts Historic House and when was it built?
DPR_3602_Lefferts Historic House has 3,185 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1783 as its year built. It is classed as museum.
Is DPR_3602_Lefferts Historic House 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, “DPR_3602_Lefferts Historic House, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dpr-3602-lefferts-historic-house-67f4779a (data as of October 2, 2026).