A Sydney man has been assaulted and robbed after being lured to a house as part of an online sale.

Police on Sunday charged three teenagers and a 20-year-old man, alleging they lured the 22-year-old to a house on Wolli Street, Kingsgrove, before assaulting and robbing him.

After meeting with a 16-year-old girl and 19-year-old man outside the home, the man was brought to the rear of the house where it’s alleged two other males, aged 16 and 20, assaulted him.

The pair then demanded the man’s smart phones and he complied, before he ran back to his car and drove away.

Police on Sunday charged a 16-year-old girl and three males – aged 16, 19, and 20 – over the alleged attack.

All four were charged with robbery in company, a charge which can encompass assault.

The 19-year-old man and 20-year-old man were granted conditional bail to appear at Kogarah Local Court on October 21.

The 16-year-old girl and 16-year-old boy were granted conditional bail to appear at a children’s court on October 21.