I've gotten these errors 5-6 times myself, also housing area related. Things seem to be getting gradually worse for me though and I'm not sure why but it's only been problematic since 3.5 launched. Today I even blue screened twice (one in vault, and once inside my house standing still). Both of these instances also had a ffxiv_dx11 error like the original post does but different entries.

Whatever 3.5 changed is causing issues on my end. It was fine before then.