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Exterior Renovation Planning Calculator
Useful assumptions.
Build a component-based exterior range using wall area, openings, substrate condition, access, and selected improvements.
Versioned planning model
Exterior renovation component range
Adjust the known inputs. The result remains a conceptual planning range.
Cost basisMidwest / South-central preliminary planning assumptionsEffectiveJuly 2026Assumption set2026.07.1
Conceptual result • Preliminary confidence$45,000–$160,000
12,600 SF derived net exterior wall area
Wall / cladding component$40,000–$130,000
Window allowance$0–$0
Door allowance$0–$0
Protection and logistics$2,000–$8,000
Contingency$6,000–$21,000
Why the result moved
- Exterior painting with preparation
- Two stories / lift access
- Typical weathering
- 25% opening deduction
- Standard Regional Market
Important limitation. This tool does not diagnose water intrusion, façade stability, hazardous coatings, historic requirements, energy-code compliance, or structural conditions. Investigation can take priority over cosmetic work.
Planning estimate only.
Calculator results are conceptual ranges, not bids, guarantees, engineering opinions, or financial advice. Actual requirements depend on verified scope, existing conditions, selections, access, market pricing, design, and approvals.