I thought house-flipping like this was reasonably popular in the US. Is it common for renovations to homes to increase the value by more than $250k (or $500k fo

I thought house-flipping like this was reasonably popular in the US. Is it common for renovations to homes to increase the value by more than $250k (or $500k for married couples)? My guess would be no and even if some couple buys an actual fixer-upper that needs a lot of work, they aren’t going to next look for some kind of dilapidated mansion in need of hundreds of thousands of dollars of repairs. I’m pretty unconvinced that this specific tax difference has a big effect.