Enables character to change building type. This process reduces era of building by 1 level and completion by 50%.

Base busy seconds: Building completion multiplied by 5 using machine-construction. Building completion multiplied by 50 using tool.
Danger: Regular if using tool. Slight if using machine.
Required pieces: n/a
Required skill: Construction.
Required appearance: Laborer.
Pollution created: Amount of reduction divided by 10.
Waste created: Same amount as completion reduction.