Under existing house, is it any harder/more expensive to form and pour ten 2'x2' spot footings with 2-4 embedded anchor bolts 3/4 inch 16 inches apart, compared to form and pour with 1 embedded post base and no anchor bolts? Along perimeter, clearance is as little as 18 inches from grade to bottom of floorboard, which sits on 5 1/2 in joists, and joists sit on 4x4 girders. Interior posts are taller, up to 15 inches. I am starting with standard plan set drawings for seismic upgrade of post and beam houses. One of the plan sets allows spot footings plus no house movers, yay. But I've had to use some brain cells and this forum to draw up wood members in a way that there's clearances to get in steel connectors with the right load ratings. On my drawing board I have two details with same same concrete and rebar, one detail with anchor bolts for low-clearance perimeter spots, the other detail with post bases and caps for not-as-low interior spots. But I'm thinking the interior spots should just use anchor bolts too, and delete all posts from a post and beam house! That way all spots would have similar details. Make sense? House is 1922 single-story 1000 square feet post-and-beam mostly redwood. Drainage and soil OK, local codes normally call for footings 1 foot deep minimum.