The Rocks’ play-off hopes were badly dented at Enfield on Thursday night with the home side - battling to avoid relegation - coming back from a one-goal deficit to grab all three points.
Bognor will rue the fact they created some great chances in the first half to put the game beyond the home side, but failed to capitalise.
Enfield started the brighter and Bognor had to defend resolutely but gradually weathered the storm, and in the 15th minute, a superb pass from Sammy Igoe to Dan Thompson resulted in his shot being blocked on the line.
Terry Dodd shot wide following a rebound when it seemed easier to score. Five minutes later, Dodd capitalised on a defensive error and hustled his way through with only the home keeper to beat, but once again shot wide of the post.
Referee Russell Howes had to go off in the 23rd minute with a leg injury to be replaced by assistant referee Alvares Lukauskis, which resulted in a 12-minute delay.
Bognor continued to dominate and deservedly took the lead with a fine headed goal from Craig Robson in the 25th minute following a corner from the right.
Enfield tried to respond and near the end of the first half, a shot from Jamie Smyth was well saved by Grant Smith in the Rocks goal.
The second half saw Enfield really trying to take to game to the visitors and it was no surprise when they equalised in the 51st minute when Rocks defender Stuart Axten unfortunately headed in an own goal following a low cross from the left.
Bognor had their chances, and a few minutes later, a great through pass from Scott Chamberlain found Igoe, who could only shoot wide.
Harvey Whyte came on for Doug Tuck on 56 minutes, but Enfield were the livelier of the two sides and a rare mistake from Robson nearly let in Michael Ewang but he could only blast his shot over the bar.
Bognor`s goal led a charmed life and the home team hit the bar and to add to the visitors’ woes, Whyte was badly injured on 68 minutes - suffering a suspected broken ankle. Ashley Harris came on as sub.
Almost inevitably, the home side scored the winner in the 84th minute when captain Mark Kirby scored from a goalmouth scramble following a corner.
Bognor had one last effort right at the death but Igoe shot over the bar.
Next up is a trip to Margate on Saturday.
Bognor: Smith, Hinshelwood, Crane,Tuck (Whyte 57 (Harris 68) ), Axten, Robson, Igoe, Wills, Thompson (Hopkinson 62) Dodd, Chamberlain. Subs not used: Weir, Sackman.