Briton Ferry Llansawel claimed the JD Cymru South title following their 4-0 home win over Ammanford on Tuesday night.
Having also secured a tier one licence last week, it means that the Reds will play JD Cymru Premier football next season.
They had been locked in a tense battle for the title with Llanelli Town, but a surprise defeat for Lee John’s side to Goytre United on Easter Monday opened the door for Ferry.
Ferry knew that victory against Ammanford would see the trophy head to Old Road and they cruised past Gruff Harrison’s men – with 36-year-old striker Luke Bowen scoring all four goals.
Bowen opened the scoring in just the eighth minute, coolly slotting home after being played in by Joseph Jones, before doubling the advantage from the penalty spot in first half stoppage time following a foul on Tom Walters by Ammanford goalkeeper Josh Hutchings.
The veteran striker completed his hat-trick seven minutes into the second half when Corey Hurford’s cross was flicked into his path and he lashed in a strike at the back post. Two minutes later, he converted another penalty after Hurford was brought down in the box.
The celebrations were in full flow by that point, with an impressive crowd of 1,201 at Old Road watching on, and they continued long into the night after Ferry had got their hands on the trophy at full-time.
After three consecutive third-place finishes, the Reds finally secured what they have so desperately craved. It will be the first time that the club will play JD Cymru Premier football as Briton Ferry Llansawel, who were only formed in 2013 following a merger between Llansawel and former League of Wales side Briton Ferry Athletic.
“It is something that the club has been working hard for for many, many years,” manager Andy Dyer said. “So many good people put in so much good work and we have finally been able to get it across the line.”
“It’s unbelievable,” added captain Alex Gammond. “It’s something we’ve worked towards for the last two or three years, if anything we’ve felt we have fallen short in the last couple of years. But it’s our moment now and we can enjoy the rest of the season.”
Bowen echoed: “It’s been a couple of years in the making, we’ve missed out a few times and we knew we had to put it right. What a way to do it. It’s unbelievable, great scenes. I’d have taken one goal to win it but to score four in a 4-0 win, you’re not going to beat it.”
