Commercial Costs
Commercial construction costs in 2026
TI, remodels and ground-up — three very different budgets. Here’s how each one is built, with real 2026 Puget Sound ranges.
Commercial construction cost in Puget Sound WA (2026): tenant improvements $120–$250/sq ft, commercial remodels $100–$300/sq ft, ground-up commercial buildings $200–$400/sq ft (shell plus TI, excluding land). Food service and medical trend toward the top of each range.
| Project Type | Cost / sq ft | Notes |
|---|---|---|
| Office TI | $120–$200 | Open office + conference; lower finish intensity |
| Retail TI | $140–$230 | Storefront, lighting, display areas |
| Restaurant TI | $200–$350 | Kitchen, hood, health-code infrastructure |
| Medical/dental TI | $200–$300 | Plumbing-heavy, shielding, specialty systems |
| Commercial remodel | $100–$300 | Scope-dependent; phasing adds 5–10% |
| Ground-up commercial | $200–$400 | Shell + TI; excludes land and major site work |
What moves commercial numbers
- MEP intensity: kitchens and clinics cost more per foot than offices — plumbing and ventilation drive it
- Occupied buildings: after-hours work and containment add 5–10%
- Code triggers: a remodel can pull in ADA, seismic or energy upgrades — we flag these at walk-through
- City fees: Seattle permit and review costs run noticeably above Snohomish county cities
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