Grundy County’s underwriting tension is a rising value signal without published market rent and with softer household and workplace indicators. Cash-flow underwriting warrants caution; a buyer with access to parcel-level rent and flood evidence should investigate the disconnect. Zillow’s June 2026 median home value was $127,133, up 6.42% year over year. That direction is supported, but not matched period-for-period, by FHFA’s 2025 repeat-transaction HPI increase of 3.63%; the measures and vintages must not be combined into one appreciation rate.
No county market asking rent is published, so gross yield cannot be calculated. HUD’s supplied $888 two-bedroom FMR is a monthly payment standard, not an estimate of asking rent and cannot fill that gap. The disclosed effective property-tax rate is 1%, an identified carrying cost against the value measure, but operating costs and insurance are not published. FHFA’s five-year cumulative HPI change of 68.16% provides historical repeat-sale context; it is neither a current home value nor an annual growth rate.
Realtor.com’s MLS listing market shows only 21 active listings alongside a 58-day median marketing time and a 13.57% price-reduced share. Thin visible supply therefore sits beside signs that sellers may need concessions; listing evidence is asking-market evidence, not closed-sale pricing or proof of buyer demand. Non-occupant purchase mortgages were 22 of 108 purchases, or 20.37%, creating potential competition for listed homes. Net tax-return migration was negative 25, and incoming movers’ average income was $1,308 below outgoing movers’—a calculation from the supplied averages—so buyer depth and tenant affordability need direct verification.
Inland flood is the dominant hazard, and modeled climate loss equals 0.14% of building value per year; this is a modeled ratio, not a parcel loss estimate. QCEW annual covered employment at county workplaces declined 2.18%, and Education and health services is the largest disclosed private supersector; neither fact measures resident employment, unemployment, or a forecast. Next checks are parcel flood exposure and insurance quotes, rent comparables and lease-up or vacancy, operating expenses, property condition, and closed-sale comparables. Without those items, underwriting cannot establish net cash flow, debt coverage, or a supported acquisition value.