As a result of my consideration of ideal street in Hagi, from the control on the facts of street spaces in the samurai residences' area in the second half the 17th century, the following points were obtained:
1. In the samurai residences' area, the ideal street spaces of the Hagi Clan was "the orderly street spaces".
2. The Hagi Clan notified owners of residences that can't built houses, to place fences and walls around residences.
3. The reason of 2, the Hagi Clan planed to make street spaces and city spaces.
