The side streets of Si Lom Road form several distinctive neighbourhoods, several of which, like Sala Daeng and Convent, feature restaurants and open spaces nestled behind office towers fronting the main road. Near Si Lom's east end, on the north side (in Suriyawong Subdistrict), several side streets are home to a concentration of nightlife venues. Among them, the Patpong neighbourhood is well known as a red-light district catering to foreigners. On the south side (in Si Lom Subdistrict), near Si Lom–Naradhiwas Intersection, Soi Lalai Sap is a popular office worker's shopping street. Towards the road's Charoen Krung end (Bang Rak Junction), the office towers peter out, and the neighbourhood is marked by the historic Tamil Indian presence; the area around Mahesak Road (between Si Lom and Surawong) is also known as a jewellery district.