Ada County has a cash-flow-versus-entry-price tension. Zillow's 2026-06 median home value is $530,977, up 0.43%, against median asking rent of $1,926 and a 4.35% gross yield before costs. FHFA's 2025 repeat-transaction HPI rose 2.71%; its separate cumulative five-year measure uses a different vintage and method, so it must not be averaged with Zillow. Cash-flow-focused buyers should be cautious, while investors willing to investigate low pre-cost yield have a possible demand case, not a completed underwriting case.
That yield must be tested against costs. HUD's two-bedroom FMR is $1,655, a payment standard rather than market rent; the supplied rent-to-FMR ratio is 116.40%, not an asking-rent estimate. Effective property tax is 0.52%, with median annual tax of $2,655. The combination indicates gross income with limited room for vacancy, maintenance, insurance, management and financing costs. Net yield and DSCR cannot be computed because operating expenses and debt terms are not published.
Demand evidence is mixed but worth checking. QCEW's covered-worker record shows an average weekly wage of $1,417; it describes jobs located in Ada County, not resident employment or unemployment. Tax-return migration produced net inflow of 2,463, while incoming movers' average AGI exceeded that of outgoing movers by $8,793—supportive context, not proof of tenant demand. Realtor.com's 2026-06 MLS evidence shows active supply declined and 16.12% of listings had price reductions; these are visible-supply and seller-concession measures, not closed-sale prices or buyer demand. Investor purchases were 598 of 7,599 total purchases, or 7.87%, showing non-occupant participation without measuring this property's competition.
Risk limits the thesis. The modeled annual building-value loss ratio is 0.11%, and inland flood is the dominant hazard; the ratio is not an insurance quote or parcel-specific exposure. Before underwriting, obtain flood-zone and drainage data, insurance premiums and deductibles, condition and capital needs, vacancy and operating expenses, financing terms, and closed-sale and lease comparables. Without them, the record cannot establish net yield, DSCR, flood-adjusted carrying cost, or durable rents. It also does not make Ada County representative of Boise City.