21717 Glendalough Rd, Gaithersburg, MD 20882

4 bd · 3.5 ba · 4,000 sqft · built 1978 · Gaithersburg · SINGLE_FAMILY·source listing ↗

$824,900

rent, three ways

OnePercent model (vv1)$4,141/mo

p10–p90 confidence band

HUD Fair Market Rent · 20882 · 4BR$3,290/mo

Area comps median (last 90d)—

FMR from HUD SAFMR FY2026. Never a naked estimate.

County

Montgomery

Flood risk indexRelatively Low FEMA NRI

Median household income$184,136

Median area rent$1,578/mo

Median home value$737,400