Open Base Saturdays are held at CCBT every first Saturday.
The fourth talk in the series features the architectural historian Nakatani Norihito.
Open Base Saturdays is a spin-off of the CCBT Meetup series of events that explores the concept of civic creativity through CCBT’s annual theme. Each session invites a guest from a different field to examine the annual theme from various angles.
The fourth edition’s guest speaker is architectural historian Nakatani Norihito. The talk will focus on Nakatani’s theory of preexisting forms. Preexisting form theory holds that the inherent scales of nature, cities, and architecture significantly impact our lives today. The talk will examine the preexisting forms in Harajuku and, while considering the unique character of the area, reflect on CCBT’s 2026 theme of civic fashion.
Following the talk, Base After Hours offers an informal forum for taking a closer look at CCBT’s Tech Lab, chatting with other attendees in the Base space, asking the guest further questions, and reading books.
Audiences are welcome to bring their own drinks, sandwiches, and snacks to Open Base Saturdays.

Talk

Base After Hours
Open Base Saturdays
This Meetup series is held on the first Saturday of every month. It invites guest speakers with different expertise and perspectives to explore the essence of CCBT’s annual theme from various angles. Guests are selected based on recommendations from previous guests, forming a relay of speakers. After the talk, audiences can chat at the After-Hours Base event held in the Base space on the third floor of CCBT.


