Tag: cost per square foot

All the articles with the tag "cost per square foot".

• 400 sq ft ADU Cost in California: Why Smaller Is Not Cheaper (2026)

  Updated:25 Oct, 2026

  We modeled a 400 sq ft detached ADU in Los Angeles County. Total: $215,000 — or $538 per square foot. Here is every phase, why fixed costs dominate, and when 400 still makes sense.

• ADU Cost Per Square Foot in California: Why the Number Misleads (and When It Helps)

  25 Oct, 2026

  An 800 sq ft ADU at $400 per foot looks cheaper than a 400 sq ft ADU at $538 — until you see which costs don't scale. How per-square-foot math works, where it breaks, and the fee lines actually priced per foot.