Police are appealing for information following an aggravated burglary in Walton.
A group of four or five men broke into the property in Walton Road at around 10.50pm on Friday, March 3.
They were confronted by the occupant and sprayed him in the face with a substance before taking a safe containing a three-figure sum of cash and the victim’s car.
It is believed the men were also armed with knives.
Investigating officer Detective Sergeant Tim Coyles said: “We believe this group of men made off in a white Smart car and we are particularly keen to trace it.
“If anyone saw a vehicle like this in the area between 10.30pm and 11.30pm I would urge them to get in contact with us.
“Also if you’ve noticed a white Smart car parked near you where there isn’t one usually, call us on 101.
“This was a frightening incident for the people living at this address and it’s really important we catch the people responsible.”
Anyone with any information is asked to contact Essex Police on 101 quoting incident 1221 of 03/03 or Crimestoppers anonymously on 0800 555 111.