The class will take place at (somebody's) home so please let the participants know the address.
The class will be held at (somebody's) home so please tell everyone the address.
「自宅なので申し込んだ人に住所教える」＝ The class will take place at (somebody's) home so please let the participants know the address. / The class will be held at (somebody's) home so please tell everyone the address.
ボキャブラリー
class ＝ レッスン、教室
take place, be held ＝ ～で行われる、開かれる
home ＝ 自宅
let ～ know, tell ＝ 教える、知らせる
participants ＝ 参加者、申し込んだ人
address ＝ 住所
イギリス 
