Single-family detached: one dwelling unit, not attached to other buildings. Governed by IRC (International Residential Code) for 1-2 family dwellings up to 3 stories. Typical: 1,500-3,000 sf, 3-4 bedrooms, 2-3 bathrooms, attached garage. Construction: wood frame (Type VB), slab-on-grade or crawl space or basement. Timeline: 6-12 months. Budget: $150-$400/sf depending on region and finish level. Key permits: building, electrical, plumbing, mechanical, grading. Zoning: R-1 or equivalent single-family residential zone.