Soi Lalai Sap

Surasena Alley or Soi Surasena (Thai: ซอยสุรเสนา), or officially known as Soi Si Lom 5 (ซอยสีลม 5), and commonly known as Soi Lalai Sap (ซอยละลายทรัพย์; lit: melted money alley) is a side-street (soi in Thai) branching off Si Lom Road in Bang Rak District of Bangkok, Thailand. It is the home of many stores either air-conditioned shophouses or mini malls, food courts and stalls or sidewalk vendors in a variety of goods such as men's and women's clothes, souvenirs, handicrafts and many kinds of food.

The name "Surasena" after Phraya Surasena (พระยาสุรเสนา) a Thai aristocrat, who used to have house in the neighborhood. (currently the headquarters of Bangkok Bank next to the alley)

Since 1983, stores have been set up and there are traders, and the later year has become so popular until the present.

Currently, It is known as a shopping center like Pratunam Market or JJ Market, but there is less area. It is very popular among employees of various office companies nearby, especially during lunch break. It is also not far from other shopping and attraction areas such as Silom, Patpong or Thaniya.[1]