Taking to Instagram, Kim said she'd hired her old childhood home to host a dinner for the family and Kris's closest friends, to relive the memories of their upbringing.
She also confessed to hiring the same cars Kris had growing up, as well as replicating the number plates to keep the nostalgic theme.
Posting an image of Kim, Kourtney, Khloe, Kendall, Kylie and Kris sat on a Mercedes, Kim wrote, "Today we celebrate my mom. Anyone that knows her, knows how sentimental she is. For her birthday I planned a small lunch, with just her kids and her closest friends of 40 + years.
"I sent out invites with a location where we all met. When everyone arrived, I told them I had a surprise and this wasn’t where we would be eating. I then gave everyone the REAL invitation and once everyone saw the address for where we would be going tears filled the room."
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"I rented our childhood home. All of our memories live here especially with our dad. It’s where each Kardashian child was born and made us who we are.
"Growing up, the home had the most ridiculous wallpaper and kitchen set! I remade all of our table settings, decor out of the same fabric and print as the wallpaper. We had lunch at the home as if it hadn’t changed and we cried the entire time."
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"When we walked out to get our cars to drive there, I had another surprise! I had rented every car my parents ever owned. I had some waiting outside so we could drive them to the house and the rest were lined up in the driveway of the house exactly how my parents used to have them parked.
"I even remade the exact license plates. (Yes my mom had a 2 DIE 4 license plate!) We drove to the home in these cars and relived our childhood! This was the best day ever. I am so proud I was able to keep such a meaningful surprise a secret from my mom and sisters for weeks!"
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"This was the most special, nostalgic day of my life and we felt my dad’s presence enjoying this day with us!
"I kept it together and didn’t cry the entire lunch even though I cried during the entire planning process. But at the end I went into my old bathroom, closed the door and cried so hard."
Kim's family were quick to thank the reality star, with her elder sister Kourtney writing, "I can’t stop crying 😭 @kimkardashian thank you for planning this for all of us, and @krisjenner thank you for giving us the best childhood 🙏🏼❤️", while her younger sister Khloe wrote, "You are the best daughter EVER."
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