Slit-2 Katsumi Residence is a residential project completed in 1981, located in Omiya, Saitama Prefecture. Designed by Azuma Takamitsu Architectural Institute, this house exemplifies the architect's innovative approach to residential design. The structure features the characteristic "slit" design elements that define the residence's spatial organization and relationship with its surroundings. Through thoughtful use of narrow openings and careful spatial composition, the residence creates a unique living environment that balances privacy with visual connectivity. The design demonstrates mid-twentieth century Japanese residential architecture principles and remains an important example of contemporary domestic design for architecture enthusiasts and scholars.