She's a millionaire. She bought it for $20k, it's now worth $2.5m. She's made $2.48m for doing nothing.
For someone else to live in that house they would have to make a fortune to pay it in rent. She could choose to move somewhere cheaper and have a massive income from either selling it or renting it out, but she doesn't, she's become rich because other people are making the area valuable.
For someone else to live in that house they would have to make a fortune to pay it in rent. She could choose to move somewhere cheaper and have a massive income from either selling it or renting it out, but she doesn't, she's become rich because other people are making the area valuable.