Adam Lambert is turning the page on his Hollywood Hills chapter — but it’s not without a little sting in the wallet … TMZ has learned.

Real estate sources tell us the Grammy-nominated singer sold his hillside estate on Monday for $6.2 million. That’s below the $7.375 million price tag he slapped on it back in May. Adam shelled out $6.5 mil for it when he bought the place in 2018.

Still, the house is nothing short of show-stopping — with four bedrooms, six bathrooms, and enough resort-style amenities to make you feel like you’re on a permanent vacation. It’s got all the bells and whistles … a sparkling pool, spa, outdoor kitchen, fire pit, and a private gym.

The property has long been a jewel in Lambert’s real estate portfolio, often making cameo appearances on his socials thanks to its sleek architecture and sweeping city views.

As we told you … Adam’s been spending less time in L.A. and more time in New York City.