Sacramento County Zoning Code § 405-22 Lot Area (CA)

Except as otherwise provided in this Division, the minimum area for each lot in the R-1-B zone shall be as follows:

a. Interior lots used for single family dwelling shall have a net area of not less than five thousand two hundred (5,200) square feet provided a public water supply and public sewerage facilities are both in use.
b. Corner lots used for single family dwelling shall have a net area of not less than six thousand two hundred (6,200) square feet provided a public water supply and public sewerage facilities are both in use.
c. Any lot used for two family dwelling (duplex) shall have a net area of not less than eight thousand five hundred (8,500) square feet provided a public water supply and public sewerage facility are both in use.
d. Any lot used for a single family building site shall have a net area of not less than ten thousand (10,000) square feet if either, but not both, a public water facility or public sewerage facility is in use.
e. Any lot used for a two family building site shall have a net area of not less than fifteen thousand (15,000) square feet if either, but not both, a public water facility or public sewerage facility is in use.
f. Every lot shall have a net area of not less than one (1) acre if neither a public water supply nor public sewerage facility is in use.