The promotion-relegation win over University B has left members ecstatic and confident about the future of the club which celebrated its 125th anniversary this year.
Former Otago and Highlanders assistant coach Phil Young coached Taieri to the semifinals in 1998 and fifth a year later.
But when he stepped down, Taieri's fortunes plummeted, with the side finishing last in 2000 and not starting in 2001.
"The win means so much for the Taieri community," Young said.
He feels the win could help the club lure back players from the Taieri who turn out for other city clubs.
"I would like to see all the boys from the Taieri come back and play for the club," he said.
"It was a great day for these young fellows to get us back into premier ranks again."
Coach John Kelly said the win was an enormous shot in the arm for the Taieri club in its anniversary year.
"We are also a dynamic community on the Taieri and we now have a rugby club that reflects our community. It is great for the future of our club."
The coach was confident about the club's future in premier rugby after its dominant performance on Saturday.
"We can foot it with the best," Kelly said.
"We are not all the way there, but Dunedin rugby clubs should look out."
Captain Kurt Webster played a significant role in the win before he left the field in the second spell with an injured knee.
"I knew we had the structure to apply pressure if we stuck to our game plan," Webster said.
He is confident Taieri can be competitive in the premier competition next winter,"We've had the same group of guys for four or five years and we have got a good nucleus," he said.
It has been a good year for the Taieri club which also won the Oamaru competition and the Dunedin premier 2 final.
"This win today is the icing on the cake," Webster said.
"It's topped off an awesome year for the Taieri Rugby Club. It is a great day."
Veteran No 8 Eric Vaafusuaga (38) has now played 193 premier games for Taieri and expects to reach 200 games for the club over the next two years.
The last time he played premier rugby for Taieri was in 2000, the year before the club withdrew from the premier ranks.
"I didn't know if it was going to happen," he said.
"The guys have given me a special present this year. We are not a team of stars but we have a couple of promising young players and we work well as a pack," Webster said.
The win was special for Vaafusuaga, who first played premier rugby for Taieri in 1989.
"It would be nice to finish off my rugby career, next year or the year after, in premier 1 where it started many years ago," he said.
Vaafusuaga is confident Taieri will be competitive next year.
"We will certainly not sit back. We want to stand up and be counted," he said.
When Taieri won the premier 2 championship against Dunedin it was not the first won by dynamic flanker Jeremy Corliss.
He won a schoolboy championship with the St Kentigerns College First XV in Auckland before coming to Dunedin.
Corliss (21) is the second youngest member - winger Todd Ford is two months younger - of the team.
He has played for Auckland junior representative teams.
"I'm over the moon with our win and am looking forward to playing premier rugby next year," he said.