days a week. i sleep with earplugs. i can still hear it through the earplugs. >> reporter: so when her landlord raised the rent nearly 20% to $2,650, the working artist decided to move. >> supremely disappointed and -- and anxious about what -- what's next. >> reporter: she says a new neighbor who just moved from san francisco offered a couple of hundred dollars more than the asking rent and that drove up rents at her complex. >> it definitely sounds crazy when you're offering above rent. but when it comes down to it is you need a place to live. it's a case of desperation in this hot market right now. >> reporter: overbidding renters first showed up about a year ago. and they are getting even more aggressive. >> advertisements for rent basically just starts a bidding war. bidding on the rent and then bringing cash in to pay a half year or a year's rent, um, all at once. >> reporter: san francisco's tech boom