Not all construction methods were created equal. Every homeowner should know that the construction method selected has direct influence on home value. RV will not add value in appraiser’s eyes when you refinance. That said, it will not raise your property taxes.
Another thought to consider, that as soon as you select your builder, a lot of other decisions are already pre-made for you, and you can not easily change tracks in the middle of the project.
ADU council 