Where Is Mello-Roos Common in the Bay Area?

“Only expensive homes have Mello-Roos.”

Home price does not determine CFD membership. A CFD special tax is assigned to a parcel when the district is formed, based on the development's financing needs at that time — not on how much a home later sells for. A modestly priced home in a CFD and an expensive home outside one both exist.

“Homes over $1 million have Mello-Roos.”

This isn't supported by anything in a CFD's own formation documents — price and CFD status are determined independently. Many Bay Area homes over $1 million (including resale homes with no CFD at all) have no special tax, and some far less expensive homes do.

“This ZIP code has Mello-Roos.”

A ZIP code can span multiple developments, only some of which are inside any given CFD's boundary. Two homes in the same ZIP — sometimes on the same street — can have different special-tax status depending on which parcel/development they're in.

“All new construction has Mello-Roos.”

Not necessarily true. Some new-construction communities are financed without forming a CFD. Newer developments are more likely to have one than older resale homes, because Mello-Roos financing became a common infrastructure-funding tool from the 1980s onward — but “more likely” is a reason to check, not proof either way.

“A newer year built tells me the Mello-Roos amount.”

Year built can be a reason to investigate further, but it cannot establish whether a CFD applies or what the tax amount is — only a property-specific source (the tax bill, the assessor's parcel record, or official CFD/RMA documents) can do that.