Combines original mod, height adjustment, cleaned up the dark spot on ground in video, cleaned up navmesh, added navmesh to fire escape (see screenshot). To help your FPS, use with this mod: https://www.nexusmods.com/fallout4/mods/26286

Hangman's Alley Cleanup v2.1 for 2019-12-01! Includes 2.0 + dirt for crops, scrubbed for dirty edits (ITM and UD), and thanks to a CK update, Precombined Meshes and Visibility data are FIXED! The invisible building bug is gone! Enjoy. :)