Do I need to report my address to immigration in Thailand every time I return with a re-entry permit while living on a non-immigrant B visa?

Yes, if you are living in Thailand on a non-immigrant B visa with a work permit, you must report your address to the immigration office every time you return from overseas, even if you are staying at the same condo. This reporting can be done by the landowner or hotel manager, but it is essential to ensure it is done to comply with Thai immigration rules.