LL87 Deadline Update: NYC extends 2025 EER filing to March 31, 2026

A quick update to our recent post on NYC Local Law 87 (LL87) compliance. NYC DOB has issued a Service Notice extending the 2025 Energy Efficiency Report (EER) submission deadline from 12/31/2025 to 3/31/2026.

What this means for building owners (2025 filing year)

If your building is required to demonstrate compliance in 2025 (Admin Code §28-308.2), your EER is now due: March 31, 2026, and per usual, failure to submit by the due date will result in penalties:

• $3,000 for the first year of non-submittal

• $5,000 for each additional year

Don’t treat this like “extra time to start”. In our experience, LL87 delays usually come from coordination—not the last week of paperwork. Access logistics, data collection, and QA/QC can take longer than expected, especially for occupied multifamily and mixed-use buildings. This extension is best used as buffer to finish cleanly, not a reason to push everything out.

Planning ahead for 2026 filings

DOB makes clear this extension is for 2025 only, so if your filing is due in 2026, we recommend planning around the original timeline and not assuming another extension will be granted.

How KOW can help

KOW supports owners and property teams through the full LL87 process, including:

• Confirming your LL87 filing obligation and scope

• Conducting the required Energy Audit + Retro-Commissioning

• Managing documentation and EER submission

If you’re in the 2025 filing year and want to use the extension to get this wrapped up the right way, feel free to reach out. If you’re unsure whether your building is in the 2025 cycle—or you want help building a simple compliance schedule—message us and we’ll point you in the right direction.