Orange County starts near 1.05% (1% Prop 13 base plus small bonds), but RMV’s newest CFD special taxes push the effective all-in rate to roughly 1.5–2.0% or higher — among the steepest in the county. Expect a one-time supplemental bill about a year after closing for the gap between the prior assessed value and your purchase price (on new construction, that resets to your full purchase price).

RMV villages carry some of the newest CFDs in Orange County, which means near-full bond terms and among the highest special taxes anywhere in the county — commonly $2,000–$5,000/yr, and overlapping districts can push higher. It is a fixed dollar charge that transfers with the property and counts against your debt-to-income ratio, so read the parcel’s Orange County tax bill line by line before you make an offer.

Villages: Sendero · Esencia · Rienda — verify at the OC Treasurer Mello-Roos database.

RMV is built into former ranch land ringed by open space and foothills, so much of it sits in wildland-urban-interface with mapped High hazard under CAL FIRE’s maps. Standard-carrier non-renewals are common in south Orange County, pushing homes onto the CA FAIR Plan (fire-only) plus a wraparound Difference-in-Conditions policy — a material recurring cost on top of the Mello-Roos. Get a real quote before you commit.

Rancho Mission Viejo is Southern California Edison territory — about $259/mo at 750 kWh (~34.5¢/kWh, Jan 2026 advisory), among the priciest utilities in the state, with no municipal-utility break. Natural gas is SoCalGas. Budget for SCE.