Takanashi clan fortified residence, Medieval fortified residence in Nakano, Japan.

The Takanashi clan fortified residence is a medieval compound that once occupied a rectangular area protected by defensive water channels. A moat running approximately ten meters wide and three meters deep surrounded the entire perimeter with its distinctive V-shaped profile.

The Takanashi family controlled northern Shinano Province from the 15th through 16th centuries. Their authority came to an end when they resisted Oda Nobunaga, whose expanding military campaigns brought the region under his command.

The residence takes its name from the Takanashi family, who ruled this region during the Muromachi period. Walking through the excavated grounds today, visitors can sense how this compound served as both a home and a center of local power for this ruling family.

The park is about ten minutes on foot from Shinshū-Nakano Station on the Nagano Electric Railway, and buses stop at the Takanashi-jōshi-shita stop. Drivers reach it in roughly 15 minutes from the Shinshū-Nakano interchange of the Jōshinetsu Expressway. A free car park serves the Takanashi residence ruins park.

Excavations from 1986 to 1994 found a pond measuring eight by six metres with three arrangements of rocks and river stones, later converted into a dry landscape garden. It is the only Sengoku-period garden found in Nagano Prefecture. The dig also uncovered foundation pillars for twelve buildings, a well and a Shinto shrine.