The only thing Mom loves about the new house is there is a backyard.這句話文法有錯嗎?

The only thing (Mom loves about the new house) is that there is a backyard.
我看不出有錯()中間只是一個子句，主要動詞還是(子句)後面的is，我加了一個that在there之前，這樣就可看出後面又是一個子句，至於that加或不加，感覺上都可，我的簡易文法就如此簡單。

My adjustment: As far as new premises being concerned,among that it is only backyard loved by my mom. Yip