This is a street in Sakuragaoka-cho, Shibuya (渋谷区桜丘町), aptly named Sakura Hill. I took a photo the other day to compare the difference between pre-Sakura and blooming Sakura. Here is the photo from the other day. (Compare to the photo above)
There are many festivals on at this time of the year and the local community work to light up the Sakura at night and plan events.