A four-unit beauty nestled in San Francisco’s desirable Bernal Heights neighborhood, each bay window alone has a market value of $800K. Each garage space is worth an additional $500K. The small plants are yours for free. My estimated purchase price in this insane market is so high I lost track of the zeros. However, my rent estimate for each apartment is $5,250 a month—with an additional $550 per month for a garage space.