Chester County is a verification case rather than a clear yield case: the Zillow county value in 2026-06 is $172,285, up 1.10%, while FHFA’s 2025 annual repeat-transaction HPI increased 12.31%. The measures show positive direction but have different stated periods and methods. FHFA is an appreciation index, not a home value, and the two results cannot be blended into one growth rate. Investors reliant on current cash flow should investigate rent first, while buyers underwriting appreciation alone should be cautious.
No county market asking rent is published, so gross yield cannot be computed. HUD’s $1,260 two-bedroom FMR is a payment standard, not a rent estimate, and cannot fill that gap. An effective property-tax rate of 0.52% and a median annual tax bill of $856 are carrying-cost inputs, but they do not resolve income. The absent market-rent evidence prevents price-to-rent and cash-flow screening.
Labor and listing evidence counsel underwriting to execution rather than headline appreciation. QCEW annual covered employment at county workplaces fell 2.78%; this is neither resident employment nor unemployment. Manufacturing is the largest disclosed private supersector, at 26.18% of private covered employment, which identifies concentration rather than the whole economy. Realtor.com’s MLS market shows 46 active listings, 68 median days on market, and 17.14% of listings price-reduced. These are visible asking-market supply, marketing time and concessions—not closed sales or proof of buyer demand.
Tax-return migration was net negative by 13 households, yet average income of in-movers exceeded out-movers by $3,278; this is a small county-level flow, not a tenant-demand measure. Investor purchase mortgages represented 9.52% of 168 total purchases, so buyer participation exists but should not be generalized beyond those purchases. The modeled expected annual building-value loss ratio is 0.17% and should be assessed alongside the dominant earthquake hazard; neither is parcel-specific. Next checks are property-level rent and closed-sale comps, insurance and earthquake terms, condition, and tax records.