The landmark meeting between President Moon Jae-in and Kim Jong Un will be held at Freedom House on the southern side of the Demilitarized Zone (DMZ), according to the joint statement issued after the talks.
Officials from both sides will hold working-level talks on April 4 to prepare for the meeting and agree on security and media arrangements, it added.
The last Inter-Korean summit was held in October 2007, when then President Roh Moo-hyun met Kim's father, Kim Jong Il.
Flurry of diplomacy
The confirmation of the summit is the outcome of weeks of hurried diplomacy, after a surprise thaw in relations on the Korean peninsula earlier this year.
When Kim's sister joined the Pyongyang delegation to the games in February, she was the first member of her family to step onto South Korean soil since the Korean War in the 1950s.
It comes in sharp contrast to 2017 when the peninsula appeared to be barreling toward conflict, with Kim overseeing a string of missile and nuclear tests and Trump promising "fire and fury" as Pyongyang threatened Guam, Hawaii and even the US mainland.
The Kim-Moon summit will precede a bombshell encounter between the young North Korean leader and US President Donald Trump -- the first time a sitting US leader has met with a member of the Kim dynasty.
Kim will 'resolve' denuclearization
In the surest sign yet that Kim is intent on engaging in international talks, the North Korean leader made his first foreign trip as leader to Beijing this week to meet with Chinese President Xi Jinping.
On Thursday, high-ranking Chinese diplomat and Politburo member Yang Jiechi arrived in Seoul to brief South Korean officials on the North Korean leader's visit to Beijing.
Kevin Rudd, former Australian Prime Minister and Asia Society Policy Institute President, told CNN there had been a wide misreading of Kim's statements on denuclearization.
"North Korean negotiating posture has one core objective, which is regime survival, and having spent the last 25 years acquiring nuclear deterrent it is hard to believe that the North Koreans are prepared to give that up," he said.
"This language (of denuclearization) is not new, it's been around for quite a long time, and the core point is its highly conditional."
'Emotional'
Thursday's North and South Korean delegations were both headed by the same men who engaged in the first negotiations in January, after Pyongyang agreed to reopen diplomatic communications with Seoul.
Ri Son Gwon, chairman of Pyongyang's "Committee for the Peaceful Reunification of the Country" led the North Korean delegation while Unification Minister Cho Myoung-gyon represented Seoul.
Talks between the two sides began at Tongil-gak, the northern side of Panmunjom, in the highly fortified DMZ shortly after 10 a.m. local time, wrapping up in the early afternoon.
Both sides praised the diplomatic work done so far and hailed the success of the 2018 Winter Olympics at Pyeongchang, which North Korea took part in.
"It has been less than three months since we met on January 9 and many things have happened between the Koreas," South Korea's Cho said during the morning session.
The North Korean representative Ri agreed, saying visiting Tongil-gak was "emotional" for all Korean visitors. "Tongil-gak and Panmunjom are symbols of divided Korea," he said.
Correction: The story has been updated to reflect that talks are being held on the northern side of Panmunjom.
CNN's Josh Berlinger contributed to this article.