Upgrade Built-In Facilities Mod (UBF Mod)
by biz - bsnooch.com

This mod allows you to upgrade the Built-In facilities (Workshop, Storage, Infirmary, and Watchtower) at certain homesites. A beta feature has been added to allow a upgraded Built-In Workshop be downgraded to its basic variant so that it is possible to switch between Machine Shop and Munitions Shop (needs testing).

Install:
Extract and drop into folder:
.../State of Decay/Game/libs/class3.1/rts

if no folder exists create one.

May conflict with other mods which modify the file:
facilities.win.bmd

For support and a tutorial on manual editing to avoid conflict, please visit:
http://bsnooch.com/forums/index.php?topic=1294.0