Nip these monster houses in the bud by requiring off street parking at one full size car stall per bedroom plus one extra per 3 bedrooms. Also cap the height at two stories above ground level. Also require one full bathroom per three bedrooms.
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Allow "Bounty Hunters" to submit pictures of illegal on street parking by home residents/renters on city website. Home owner to be fined $250 per parking event. An event is each time the car is caught illegally parked. Could be multiple times in one day.
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1/3rd of the fine goes to the Bounty Hunter submitting the picture. This way city makes money without having to send city workers out to check.
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Owner doesn't pay the fine, city slaps a lien on the house.