What is the LL97 Building Directory?
Local Law 97 sets emissions limits for most buildings over 25,000 square feet in New York City. The LL97 Building Directory makes it easy to see how any covered building measures up whether you're checking your own property, researching a building, or exploring emissions performance in your neighborhood.
Use this tool as a planning reference. Building owners and their representatives remain responsible for confirming building information, coverage status, and reporting obligations with official City systems and qualified professionals.
How to use the Directory: Search, Map, Filter
What You'll Find in a Building Profile
Every covered building has a public profile that includes:
Building identifiers and all associated addresses for the tax lot.
Primary use classification for the building.
Location information from City records.
Building or tax lot square footage, where available in City records.
Number of buildings on the tax lot, where available.
Annual reported energy usage from benchmarking records.
The building's energy efficiency rating.
Whether the building appears in LL97 related public records.
Preliminary pathway information (Article 320, 321, City/NYCHA) where available.
Visual comparison of projected emissions against LL97 period limits through 2050.
Estimated penalties by compliance period, where applicable. Planning estimates only.
Found Your Building? Keep Going.
Review these next steps based on what you find.
What This Tool Is and Isn't
Frequently Asked Questions
You can search by building address, BBL (Borough-Block-Lot), or BIN (Building Identification Number).
A BBL is a borough, block, and lot number. It identifies a tax lot in New York City. A single tax lot can contain multiple buildings.
A BIN is a Building Identification Number. It identifies an individual building. LL97 compliance may be assessed at the individual building level, so BIN searches can be more precise than address searches.
The Covered Buildings List is DOB's reference list of buildings identified in City records for sustainability law compliance. DOB states that the list is for reference and that owners are responsible for verifying information used for compliance and reporting
A single tax lot may include multiple buildings, each with its own BIN. Review each result carefully, especially if your property includes multiple structures.
Use this tool as a planning reference, not as a final compliance determination. Building owners and their representatives are responsible for confirming coverage, filing requirements, and compliance status through official DOB systems and qualified professional review.
Review DOB's Covered Buildings List guidance and use the appropriate DOB process to request an update. You may also use Momentum to connect with NYC Accelerator for orientation and planning support.
Penalty figures shown are planning estimates only. Actual compliance outcomes depend on official reporting, building data, DOB rules, and professional review.
Start planning now. Create a Momentum account to share building information, review available resources, and connect with NYC Accelerator support for energy upgrades, incentives, financing, and implementation planning.
A missing result does not confirm that no LL97 obligations apply. Try searching by BBL or BIN, review official DOB resources, or create a Momentum account to get oriented to the right next step.