AbstractThe paper presents a case study of art activism in Nang Loeng, a historic neighbourhood in Bangkok, Thailand. Long recognised for its rich cultural heritage from food to architecture, Nang Loeng has established its name as a site of cultural tourism, drawing interest from tourists, artists, and professional experts. Like many neighbourhoods nearby, Nang Loeng today is being threatened by looming gentrification and eviction, as the inner city is transforming itself into a tourist destination. In particular, the upcoming underground construction has put their housing security under pressure. The paper first discusses the context of rail‐led urban transformation in historic Bangkok, fuelled by the discourse of transit‐oriented development. Then, it introduces Nang Loeng and their series of art‐based programmes. Disappointed by their failure to secure housing tenure from the landlord, Nang Loeng residents have turned to activism as a tool of resistance. Here, the paper pays particular attention to the role of community architects who creatively translates neighbourhood concerns into artistic forms. Through the case of Buffalo Field Festival, the paper illustrates how the community architects, artists and local residents collaboratively use Nang Loeng's cultural assets to make subtle political statements.