Kim Kardashian & Kanye West ... We Want Dr. Dre's Land for Our Mega-Mansion

As if Beats by Dr. Dre didn't earn him enough money last year ... Kim Kardashian and Kanye West are gearing up to line Dre's pockets even more, because Dre owns the Calabasas mega-property the couple is seriously thinking about buying.

TMZ broke the story ... Kim and Kanye have got their eyes on a massive plot of land tucked away in a secluded section of Calabasas, and are considering buying it and then building an enormous, super-private mansion.

The couple already owns an $11 million mansion nearby in Bel Air -- still under construction -- but now they're concerned it's too exposed ... so they're thinking about selling it and buying the lot.

And now for the crazy coincidence -- we've learned the 6-acre plot is owned by hip hop mega-producer Dr. Dre, which he purchased last year for roughly $10.5 million. We're told the land is now worth between $11-12 million.

FYI, Dre is worth a reported $360 million. Kim and Kanye's reported net worth combined isn't even half that. Dre reportedly raked in $110 million last year alone ... largely from Beats by Dre.