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Permit to replace sub-floor

11K views 4 replies 4 participants last post by  AndyWRS 
#1 ·
Hello,

I have tried to contact my county office email and phone messages regarding this but no luck.

Do I need a permit to replace old plank sub-floor in my bathroom with plywood?

How 'bout sistering joists if needed?

I'm in Marin County, California

thanks!
 
#5 ·
I would think if your just changing out the sub floor your gtg but you also mention the joists and sistering. I do not know the answer, but I'm sure if you tell the building dept about both correction they would want to inspect it and require a permit. They may very well require eng also.

Hopefully someone in the area who knows can shed some light...or you reach someone in the BD there and get the info needed.
 
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