  Over the past decade, Airbnb has emerged as the most popular platform for
renting out single rooms or whole apartments. The impact of Airbnb listings on
local neighborhoods has been controversially discussed in many cities around
the world. The platform's widespread adoption led to changes in urban life, and
in particular urban tourism. We argue that urban tourism space can no longer be
understood as a fixed, spatial entity. Instead, we follow a constructionist
approach and argue that urban tourism space is (re-)produced digitally and
collaboratively on online platforms such as Airbnb. We relate our work to a
CSCW research direction that is concerned with the role of digital technologies
in the production and appropriation of urban space and use the concept of
representations as a theoretical lens for our empirical study. In that study,
we qualitatively analyzed how the two Berlin neighborhoods Kreuzk\"olln and
City West are digitally constructed by Airbnb hosts in their listing
descriptions. Moreover, we quantitatively investigated to what extend mentioned
places differ between Airbnb hosts and visitBerlin, the city's destination
management organization (DMO). In our qualitative analysis, we found that hosts
primarily focus on facilities and places in close proximity to their apartment.
In the traditional urban tourism hotspot City West, hosts referred to many
places also mentioned by the DMO. In the neighborhood of Kreuzk\"olln, in
contrast, hosts reframed everyday places such as parks or an immigrant food
market as the must sees in the area. We discuss how Airbnb hosts contribute to
the discursive production of urban neighborhoods and thus co-produce them as
tourist destinations. With the emergence of online platforms such as Airbnb,
power relations in the construction of tourism space might shift from DMOs
towards local residents who are now producing tourism space collaboratively.
