Located on a 19-hectare residential development site in Xiamen, China, the new 914-square-meter Vanke Sales House is a performative space which promotes the purchase of onsite residential property. The client requested a showroom that provides a unique, interactive experience, guiding prospective clients through a skillfully curated showcase of the development’s residential offerings. The designers created a space that embeds models, drawings and renderings within the progress ion of the building’s circulation, exterior skin and interior organization. Materiality, light and circulation through the Sales House results in a layering of spaces from exterior to interior to the in-between, which effectively showcase various residential unit vignettes. The building’s circulation acts as an extension of the landscape. It blends into the landscape through a simple and effective move—the bar of program is rolled into a circle, with one end lifted to create an infinite circulation loop that guides movement from the ground plane through the building. After walking through a covered outdoor space, visitors enter through the lobby and circle through the sales display area and exit to the roof. From the roof, visitors have a clear vantage point onto the landscape and development site with views of the ocean beyond. While descending along the outside and back into the lobby, the roof frames views of the planned construction site. The landscape strategy mirrors the circulation in the Sales House. The excess dirt generated by the extensive excavation and cut and fill work taking place throughout the site to create a field of dunes that lie adjacent to the entrance of the Sales House. Each respective dune or mound has a different height, planting and spatial profile, which, when taken as a whole system, creates a unique and whimsical topographical condition. This topography can be traversed and circumnavigated, adding to the project’s experiential identity. As part of an ongoing development project, both the landscape and spiral Sales House building have permanent and temporary functions which will transform as future phases proceed. In order to support these phased transformations in a sustainably sound manner, the team developed design strategies that allow both the landscape and Sales House to be repurposed for future usages.