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How Long Does a Home Addition Take?

A realistic timeline from first call to final walkthrough — and why the planning weeks are what keep the build on schedule.

Updated June 2026 · Awesome Additions · Sample editorial content

It depends on the project, but here's a realistic shape for a DFW addition. The part people underestimate is the front end — and that front end is exactly why the build stays on track.

A typical timeline

  • Discovery & feasibility — about 1–2 weeks.
  • Architectural planning, engineering & permits — about 8–16 weeks (the most variable phase; second stories run longest).
  • Selections & final design — overlaps planning; budget, schedule, and scope lock here.
  • Construction — about 12–24 weeks depending on size and complexity.
  • Closeout & warranty — final walkthrough, lien releases, written warranty.

Why the planning weeks matter

Permits and engineering in hand before demolition is what prevents the mid-build stalls that wreck most schedules. We track every phase in real time, so the date we commit to is the date you get. See The AG Standard for the full five-phase process.

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