Defying trend and perhaps logic, too, the Sydney, one of Hello Living’s luxury condo buidings on the Prospect Heights/Crown Heights border, has raised prices on several units. Per Streeteasy, there are three recorded sales and three in contract. Of the 11 active listings, five just got price hikes. Unit 502, an 802-sf two bedroom, got a $20,00 bump a week ago, to $579,000. Unit 504, a similar model, got a $30,000 increase two days ago, to $599,000. Both have been on the market since April. Their last recorded sale on Streeteasy, Unit 301, went for $462,000 in October, $13,000 less than the asking price. So, um, what the heck?