According to the Vatican's chief spokesman, the Rev. Federico Lombardi, after the election, Benedict will settle in a former cloistered convent inside the Vatican walls, which is currently being renovated.
During a news conference Monday, Lombardi said Benedict will "lead a life of prayer" and will be free to "move and communicate to the public" as he pleases.
But Benedict will probably keep a low profile after his resignation, without running any risk of overshadowing the work of his successor.
"He's going to live in a monastery, and life in a monastery is very quiet," Gregory Burke, a former Fox News correspondent who is now the Vatican's senior adviser for communications, told Religion News Service.
According to Burke, in the coming years Benedict will spend his time in retirement "mostly to read, study and pray."
While the pope had hinted in 2010 that he could resign if he felt "no longer physically, psychologically and spiritually capable of handling the duties of his office," few expected him to step down now.
Just recently, the Vatican had announced the schedule for Easter celebrations presided by Benedict. And the Catholic Church is in the middle of a "Year of Faith" proclaimed by the pope himself that's scheduled to end in November 2013. The Archdiocese of Philadelphia even had plans to host him in 2015.
The pope's health has been declining in the last few months and he had started leaning on a cane to walk.
Following the example of his predecessor, Pope John Paul II, Benedict also started last year using a moving platform to move around during lengthy liturgical celebrations in St. Peter's Basilica.
But Lombardi denied that there was any specific illness or condition behind the pope's decision to step down.
According to the Vatican spokesman, in today's world the papacy requires a "vigor, perhaps stronger than in the past. It is a vigor that the pope says he has felt diminish in him in recent months."
In the weeks leading up to Feb. 28, Benedict will continue to "fully carry out his functions," Lombardi said, including the official opening of Lent on Ash Wednesday.
He stressed that Benedict will have no role in the conclave to elect his successor, nor in running the church in the weeks leading up to the opening of the conclave after he officially resigns.
"The Apostolic Constitution," Lombardi said, "gives no role in this transition to a pope who resigns."