P4 Planning for Lean Construction is a system developed by Perry Thompson.  

P4 Planning is a 4-step system that will improve how construction trades execute work.  The P4 Planning Process prepares teams for the phase-pull planning meetings.

• P1 is about Process specifically mapping the process for the entire value stream.
• P2 is about Pace which results in geographical representation of the weekly work plan which is tied to a budget.
• P3 stands for Prepare. Here you get into the details of the work and setting the standard.
• P4 is where we establish conditions of satisfaction to Perform. 

Perry is available through Kata Consulting to train and coach your project teams in better ways to execute their work - working SMARTER, not HARDER.