This mod includes a few new "buildings" for San Fierro.
-new firehouse
-2 new oldgarages
-new trainstation + trains
-new showroom
-new tunnel near showroom
-new airport
-new drivingschool
-new buildings around the Wheel Arch Angels
-new stadium
-new import-export boat
It's around 15 mb... but the buildings are nice i think .
More screenshots included in the package.