Monthly homeownership costs in San Francisco, San Mateo and Marin counties all exceed $5,800, making these regions the most expensive not only in the Bay Area but California. Not surprising, San Francisco County tops the list with a monthly homeownership cost of $6,350, according to a report from local brokerage Paragon Real Estate. The monthly cost is based upon the county's median home sales price, a 20 percent down payment and a prevailing mortgage interest rate. The monthly costs to own a home in San Mateo and Marin counties are very comparable at $5,980 and $5,860, respectively. On the flip side the least expensive counties in the Bay Area based on monthly ownership costs are Solano, Sonoma and Napa. Solano County represents the only region in the Bay Area with a monthly housing cost ($1,780) that is less than the statewide average of $2,420 per month. In Sonoma County owning a median priced home means paying $2,760 a month, while in Napa it equates to $3,28...
- The monthly cost of homeownership in San Francisco County stands at $6,350.
- San Francisco does have some neighborhoods where a noticeable volume of sub-$1 million sales have recently closed.
- Monthly housing costs in Solano County total $1,780.