Tim Bradford's place was first shown in 2x07 "Safety", where he was watching a football game on TV and took a minute to help stop a fugitive on the street before returning to the game.
In 4x01 "Life and Death", it looks as though Bradford moved into a smaller place, which he shares with his rescue dog, Kojo.
As of Season 7, Bradford's home looks more finished and lived in, as seen in "The Gala" and "Wildfire".