Establish your building's Borough, Block, Lot # (BBL):

Input BBL# below to see if LL84 & LL87 compliance is required.

1. Go to:
2. Enter building address into "Buildings Information"
3. Combine Borough #, Block #, and Lot # to create BBL#

= Borough Number
= Tax Block Number
= Tax Lot Number

BBL format (10 digits total) =

*If Block # or Lot # is less than the required number of digits, you must add zeros in front of the number
(Ex. Block # is 2123 – must add one zero resulting in 02123 for correct BBL)

Step #1

Step #2

• L

• B

• B






Find My BBL Now

Please select your Borough:

Enter your BBL Number:

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