Ex-NBA star Shawn Kemp ain't playin' around -- he REALLY wants to sell his humongous Seattle-area mansion ... so he slashed the asking price by more than a MILLION bucks!
The 49-year-old former Seattle SuperSonics star owns a 13,000 square foot pad in Maple Valley, Washington ... complete with a basketball court, tennis court, pool, putting green and spa.
The property sits on 5 acres of land. Massive.
Kemp originally listed the place for $3.7 mil back in 2018 -- but now, he's pricing it to move fast ... cutting the number down to $2.5 mil with listing agent Robert Potashnick of Coldwell Banker Bain.