stephanie truong has the full story. >> reporter: it's the tale of two worlds.hin one city. >> it's like a little oasis in the middle of a big city. >> reporter: san jose has been experiencing its first housing development boom since the crash in 2008. at 85 and coddle, construction has been under way to replace the old ibm site, sitting dormant for more than five years. this is what's slated to open in march. more than 300,000 square feet of future retail space. target, starbucks. construction of housing has also begun. 450 town homes and single family homes. over in downtown, they broke ground last fall. this is what that condo high-rise is supposed to look like. up to 21 stories high and about 7,000 square feet in retail. just around the corner, construction of one south market hasn't really taken off. set to change the face of this block at market and santa clara street, a 23 story glass and steel tower with more than 300 units. and the same developer that has the axis has its site set on another one. but it could look like this in a couple of years if city