Planning Resources
Guides to the structural and building-system coordination behind additions, including framing, HVAC, plumbing, electrical routes and construction sequencing.
Topic Guide
Use these articles together rather than as isolated tips. Each guide links into the relevant service, planning or scope page so you can move from a specific question back to the complete home-addition process.
New square footage changes building loads and service routes. Mechanical, plumbing and electrical systems should be coordinated with the layout and structure before framing and finishes make those decisions expensive to change.
