The defender signed a new five-year deal with the club on Thursday.
Wimmer only joined Spurs on an initial five-year deal from German side Koln last summer but after impressing in a run in the team in the latter months of last season he has already been awarded improved terms.
The 23-year-old did not make his Premier League debut until late January as he struggled to break apart the first-choice partnership of Toby Alderweireld and Jan Vertonghen, but he took full advantage when he was thrust into the limelight when Vertonghen suffered an injury.
Wimmer made 11 league appearances for Spurs in the second half of the campaign, taking his total for his debut season in England to 23 in all competitions as he was a regular in the Europa League and domestic cup competitions.
The defender tweeted his delight at being awarded extended terms on Thursday afternoon, and went on to admit that it was "a dream come true" to be able to extend his stay.
He told the club's official website: "I’m delighted that I was able to sign a new contract to stay five more years with the club. It’s a big pleasure for me, it makes me very happy and it’s a dream come true that I can stay so long with such a big club.
"I called my mum and dad and of course they are also very happy. It’s special for them because they know we always hard work, we train every day and the season is very long. They are delighted and very happy for me that I could sign a new contract and they are also very proud.
"People say we all have good mentalities here at the club – the people are very nice and we are like a big family. Everybody likes each other and I was welcomed very well by everyone when I joined last season so it’s a big pleasure for me to play for a big club like this."
So impressive were Wimmer's performances at the end of last season that when Vertonghen's latest injury blow was announced at the start of the month, Spurs fans were confident that Wimmer's presence would prevent Spurs feeling the Belgian's absence too heavily.
Wimmer will have his eyes on ousting Vertonghen and establishing himself as Alderweireld's regular partner this season as Spurs look to launch another title challenge.