Jiung is an informal market growing in public open spaces in Kemayoran, Central Jakarta, Indonesia. It consists of a row of non-permanent stalls and is also observed to be surrounding the densely populated settlements and four main Streets which are the Benyamin Sueb, Haji Ung, Kemayoran Gempol, and Bendungan Jago. Most of the traders come from the settlements behind the row of the market stalls and sell from morning to night except for those on the Kemayoran Gempol Street section, who are allowed to only trade up to late afternoon when traders with tents on the Street resume. These trading activities, however, lead to the closure of the Kemayoran Gempol Street and the tents used in the night market also cover the stalls of the Jiung Market merchant. Meanwhile, this market is acceptable to the residents and also the traders due to the long time existence of the Night Market activities in the place. There is, therefore, the need to understand the adaptation process to be implemented for the night market traders to be acceptable using the qualitative approach. It was discovered that a mutually beneficial relationship is the main reason the Night Market
has survived up to the present moment. Moreover, the market was also found to have influenced the distribution of traders in several locations around the area but it is possible to inhibit the distribution growth through an architectural approach as a contribution towards the planning and design of urban public spaces in the country.