9) Step 9: Common mistakes (and how to avoid them)

By Cali Dream Construction | January 09, 2026 | San Diego

• Starting demo before the design is complete

• Making selections too late (lead times create delays)

• Underestimating “invisible” costs (electrical, plumbing, prep)

• Not planning storage and daily function (beautiful but inconvenient)

• Over-opening the layout without solving acoustics and clutter

• Ignoring outdoor spaces until the end

• Not setting a clear communication plan with the contractor

• Skipping contingency in older homes