Insurance Estimate
Base rate: 0.8% annual property value, adjusted for:- Age surcharge: up to +60% for 80+ year homes
- Tornado/hail risk: up to +40% (NOAA data)
- Flood zone: +$1,200/yr NFIP average if in flood zone
Rehab Cost Estimate
Base cost per sqft by age (8–52 $/sqft) × condition multiplier (0.2–1.8x):| Condition | Multiplier |
|---|---|
| Excellent | 0.2x |
| Good | 0.5x |
| Average | 1.0x |
| Fair | 1.3x |
| Poor | 1.8x |
Age-Based Risk Flags
| Risk | Trigger | Budget Impact |
|---|---|---|
| Lead paint | Built before 1978 | +$8K if Very High |
| Knob & tube wiring | Built before 1950 | $8–15K rewire |
| Asbestos | Built before 1980 | $2–8K testing/remediation |
Example — 1411 8th Ave SE, Cedar Rapids IA (built 1910)Insurance: 86,010 · Lead paint: Very High · Wiring: likely knob & tube · Asbestos: possible. None of this appears on the listing.