What Is Local Law 84?
Local Law 84 was enacted to create transparency around building energy and water performance across New York City. It requires owners of certain large buildings to annually measure, track, and report consumption data to the City.
Specifically, LL84 requires owners to:
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Benchmark annual energy use
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Benchmark water use (where applicable)
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Report data through the U.S. EPA’s Portfolio Manager platform
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Share the property profile with the City for compliance review
The law is administered by the New York City Department of Buildings (DOB). Reporting is required every year, regardless of whether your building’s performance changes.
LL84 benchmarking and disclosure is law. It does not impose emissions limits — but it directly supports enforcement of newer performance-based regulations.
Who Must Comply with Local Law 84?
Compliance is triggered by building size and tax-lot configuration.
Under DOB guidance, “covered buildings” include:
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Individual buildings 25,000 gross square feet or larger
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Two or more buildings on the same tax lot that together exceed 100,000 gross square feet
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Two or more condominium buildings governed by the same board that together exceed 100,000 gross square feet
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City-owned buildings meeting the same square footage thresholds
Eligibility is based on Department of Finance records and appears on the City’s Covered Buildings List (CBL).
If your property appears on the CBL, you are legally required to benchmark and report annually.
Important Clarification
Being under 25,000 square feet does not automatically exempt you if:
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You are part of a larger tax lot exceeding 100,000 square feet, or
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You are part of a condo association meeting the combined threshold
Owners frequently overlook tax-lot aggregation rules. Verification against the official CBL is the safest approach.
When Is Local Law 84 Due in 2026?
The annual submission deadline is:
May 1, 2026
The 2026 filing covers calendar year 2025 energy and water data.
If May 1 is missed, additional quarterly compliance checkpoints apply:
These dates are critical because penalties accrue quarterly until compliance is achieved.
Waiting until late April increases risk of processing delays or submission errors.
What Are the Penalties for Missing the Deadline?
Failure to file a compliant benchmarking report may result in:
Penalties continue each quarter until a compliant submission is accepted.
As of December 15, 2025, benchmarking violation payments must be submitted through DOB NOW: Safety.
Two key points often misunderstood:
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Submitting incorrect data does not stop penalties.
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Attempting to file without confirmation does not constitute compliance.
Violation removal occurs only after a compliant report is successfully processed.
What Proper LL84 Submission Actually Requires
Filing Local Law 84 is not simply entering utility totals into a form. Compliance requires accurate whole-building benchmarking and verified submission through NYC’s systems.
At minimum, a compliant submission involves:
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Setting up the property correctly in ENERGY STAR Portfolio Manager
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Entering complete 12-month energy data for all fuel types
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Aggregating tenant meters where utilities are not owner-controlled
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Verifying gross floor area and use-type allocations
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Confirming Borough, Block & Lot (BBL) and BIN identifiers match Department of Finance records
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Sharing the property with NYC in time for processing through the City’s BEAM platform
Two areas create the majority of compliance issues:
Whole-building data collection.
Buildings with multiple tenant meters must aggregate total annual consumption. Missing even one account can invalidate submission.
Late sharing and confirmation gaps.
Submitting data inside Portfolio Manager does not complete compliance. The property must be shared with NYC, processed through BEAM, and confirmed. Without confirmation, penalties may continue accruing.
DOB recommends sharing at least 15 business days before the May 1 deadline to allow time for validation and correction.
For single-tenant or centrally metered buildings, internal filing may be manageable. For multi-tenant or portfolio properties, structured oversight reduces the risk of rejected submissions and quarterly penalties.
Local Law 84 compliance is procedural. Accuracy and timing determine whether a filing is accepted — not just whether data was entered.
Common Compliance Mistakes
Across Brooklyn, Queens, Manhattan, the Bronx, and Staten Island, recurring errors include:
- Incomplete or estimated energy data
- Incorrect gross square footage
- Failure to include tenant meters
- Missing required water benchmarking
- Incorrect BBL or BIN formatting
- Sharing too late for City review
Local Law 84 is not complex in theory. It is procedural in execution. Small technical errors can result in violations. Trusting a NYC local law compliance advisor can take the headache out of it.
FAQ: Local Law 84 in NYC
Should You Handle LL84 Internally?
Local Law 84 does not require a third-party professional.
However, benchmarking requires:
- Whole-building utility coordination
- Tenant meter aggregation
- Accurate square footage validation
- Identifier verification
- Timely submission and confirmation
For single-building owners with consolidated utilities, internal filing may be manageable.
For multi-tenant or multi-building portfolios, structured compliance oversight typically reduces administrative burden and risk exposure.
Many NYC owners choose to integrate benchmarking into their broader heating and energy service agreements rather than manage it separately. Energo is currently offering free LL84 benchmarking in your first year with a three-year service agreement.
Is Local Law 84 the same as Local Law 97?
No. Local Law 97 regulates building carbon emissions and imposes performance limits. LL84 is a benchmarking and disclosure law.
However, LL84 data feeds directly into LL97 compliance strategy.
Do condo and co-op buildings need to comply?
Yes, if they meet the square footage thresholds individually or collectively.
What if I missed last year’s filing?
You may still file. Doing so stops additional quarterly penalties from accruing. However, past penalties may remain payable.
Does Local Law 84 apply outside NYC?
No. LL84 applies only within the five boroughs of New York City.
Why Early Compliance Matters
Beyond avoiding penalties, benchmarking provides operational intelligence.
Annual benchmarking:
- Creates transparency around energy performance
- Establishes a baseline for future capital planning
- Identifies inefficiencies in heating, cooling, and domestic hot water systems
- Supports compliance planning for Local Law 97
For property managers and owners across NYC, early and accurate LL84 compliance reduces risk, avoids administrative scrambling, and positions the building for long-term regulatory alignment.
Waiting until April increases cost exposure and technical risk. Systematic compliance avoids both.
NYC Local Law 84: 2026 Deadline, Penalties & How to Stay Compliant
Local Law 84 (LL84) is New York City’s annual energy and water benchmarking requirement for covered buildings. If you own or manage a qualifying property in Brooklyn, Queens, Manhattan, the Bronx, or Staten Island, compliance is not optional — and the deadlines matter.
How to Convert from Oil Heat to Electric in NYC Commercial Buildings
If you own or manage a commercial building in New York City, electrification is no longer a future concept — it is a planning issue today. With No. 4 heating oil required to be phased out by 2030 under Local Law 32, and carbon emission limits tightening under Local Law 97, many building owners in Manhattan, Brooklyn, Queens, the Bronx, and Staten Island are evaluating whether converting from oil to electric heat makes financial and regulatory sense.