Relating to the registration of vacant buildings in certain municipalities.

HB 4999 requires municipalities with populations of two million or more to create a system for registering vacant buildings. It defines a building as vacant if residential or commercial use stops for over 150 days, or if 75% of units in multi-unit buildings remain unused for that period. Building owners must renew their registration annually, and cities must maintain an online database listing registered vacant structures. This bill directly affects property owners in large Texas cities and the municipalities responsible for enforcing these registration requirements, taking effect September 1, 2025.