Urakusai had built another tea house named Joan before on the site of his house in Osaka Temma, which was reconstructed as 'Genan' in the Urakuen Garden.
なお、有楽斎はこれより前に如庵の名を持つ茶室を大坂天満屋敷にも好んで（造って）おり、同じ有楽苑内に「元庵」の名で復元されている。