Wasatch Front market costs (2025–2026) for standard residential sites: slab-on-grade — $18,000–$35,000; crawl space — $22,000–$45,000; full basement (8–9 ft walls) — $35,000–$80,000. These ranges cover normal soil conditions, standard structural engineering fees, excavation, forming, concrete, and basic waterproofing. Rock or caliche hardpan requiring blasting or hydraulic breaking adds $10,000–$40,000+, depending on volume. High-water-table sites requiring dewatering add $5,000–$20,000. Expansive soil sites requiring engineered fill replacement add $8,000–$25,000. Full exterior waterproofing with drain tile and a sump pump adds $8,000–$18,000 — recommended on all Utah basement foundations and worth it. RainFire Builders provides itemized estimates after a soils report review and site walk.