The Greatest Estate Developer is a South Korean web novel series written by BK_Moon. It was serialized on Naver Corporation's web novel platform Naver Web Novel from June 2019 to November 2020. A manhwa adaptation, which was released as a webtoon, adapted by Lee Hyun‑min, and illustrated by Kim Hyun‑soo, began serialization on Naver Corporation's webtoon platform Naver Webtoon in August 2021. As of November 2025, the webtoon's individual chapters have been collected into seven volumes.