How do yu go about getting a building code variance?
I’d start by checking the local building codes; there are tens of thousands of them in the US, so I’m talking in general terms. If you’re lucky, you live some place where it’s online; I’m not so lucky, and all my city does is tell me where to send a check to purchase the code books. On the other hand, my local library has both the current code and has already ordered the version that takes effect later this year. Presuming you do need a variance, and the code doesn’t spell out the procedure, I’d start in whatever office grants building permits for where you live. In some places, that’s part of the County government, and in others it’s part of