The Chelsea boss revealed he never had any serious ambition to try to sign the Tottenham talisman, especially given the strong links to the Premier League champions.
Pep Guardiola’s City pushed all summer to recruit Kane but never came close to striking a deal with Spurs.
Chelsea will head to north London on Sunday to face Kane and Tottenham, with Tuchel offering compelling insight into the summer’s biggest transfer that never was.
Asked about City’s attempts to sign Kane, Tuchel replied: “I thought that this would happen.
“We never had a list with his name on it and I never went to (Chelsea director) Marina (Granovskaia) to tell her to buy him.
“But the club sorted out the situation. There are many people around players, their agents and advisors and people in between and we had some information from these people.
“But it was never that close that we had to experience the rivalry (between Tottenham and Chelsea). We know about the rivalry but I had a feeling that it was never that far.”
Manchester City’s main Premier League rivals can be forgiven for breathing a sigh of relief that they missed out on Kane.
Tuchel insisted he would not number among that rank however, revealing the football fan in him would like to see top stars like Kane able to stay one-club men for their full careers.
Asked if City would have been a fearsome prospect with Kane in their ranks, Tuchel replied: “No I was not scared, but if it would have happened I would have been very interested in how maybe it would have changed Manchester City’s style of playing.
“We are not afraid of anyone. We accept any team and Manchester City, Man United and Liverpool, they are the teams strong like no other in this league and they have strong squads.
“These are the guys with whom we want to compete and it’s normal that they fight for the best players and I thought this is maybe going to happen.
“On one side I was happy that he stayed because it is also nice that it exists in football that players play for one club only.
“Harry Kane is Tottenham and even for me I have absolutely nothing to do with Tottenham, I have never worked for them, when I think about Tottenham in the last decade you think about Harry Kane and this is very nice.
“Like you think about (Lionel) Messi and straight away you think about Barcelona and it is very hard to think that he plays for another club now, and that’s the same for Harry Kane.
“So from this side I was happy because I like it and a part of my personality is still a fan and I like that things like this happen.
“It is also nice that Romelu Lukaku is back at Chelsea and some things are a good fit and should not be changed.”