老宅

Pinyin: lǎo zhái
Meaning：The old house
Sentence: 出售老宅使他很难过。The sale of his old house made him sad.

More:

老：

Pinyin: lǎo
Meaning: Old
Radical: 耂
Stokes: 5
Traditional: 老
Common words/Phrase:
老实 [lǎo shi] 【veracity】
老家 [lǎo jiā] 【native place】
老年 [lǎo nián] 【old-age】
老乡 [lǎo xiāng] 【fellow-townsman】
老虎 [lǎo hǔ] 【tiger】

宅：

Pinyin: zhái
Meaning: Residence
Radical: 宀
Stokes: 6
Traditional: 宅
Common words/Phrase:
宅子 [zhái zi] 【house】
宅院 [zhái yuàn] 【house】
住宅 [zhù zhái] 【residence】
宅心仁厚 [xiàng xiàn] 【be of a kindly disposition】