Modular Homes for Sale in Castro Valley, California

One Modular Home is listed in Castro Valley right now, priced at $75,000. That is a single listing rather than a market average — prices for Modular Homes vary widely with size, finish, and whether the home is on wheels or on a foundation.

It depends on how the home is classified and where you put it, and that is decided locally rather than nationally. A Modular Home on wheels is often classified as an RV, and many jurisdictions limit full-time occupancy of an RV on a residential lot. One on a permanent foundation is treated as a dwelling, has to meet local building code, and may qualify as an accessory dwelling unit (ADU) where ADUs are permitted. Because Castro Valley and its county set the zoning and permitting rules, confirm your specific parcel with the Castro Valley planning or building department before you buy.

The usual options are a community or RV park that accepts long-term residents, private land in a jurisdiction whose zoning permits it, or a backyard as an ADU where local code allows one. Our communities directory lists places near Castro Valley that are set up to accept Modular Home residents; every record is checked against the business's own live site before we publish it.

Our builders directory lists companies serving the Castro Valley area. Each record is verified against the company's own live site before publication, and placement in the directory cannot be bought. Compare portfolios and contact builders directly for quotes and lead times.