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Former Hills star and best-selling author Lauren Conrad has listed her Hollywood pad for $2.25 million.

The 3,009-square-foot Spanish-style home has 4 bedrooms, 4 baths, a pool, a stunning garden, breakfast bar, a full security system with 10 cameras and intercoms ... and a guest house that Lauren's former Hills co-star Audrina Patridge used to call home.

Ms. Conrad bought the cozy pad back in 2008 for $2.36 million. Sounds like the blonde starlet is losing some money on the deal, but we have a feeling she'll be moving on to bigger and better things. C'est la vie!

See more of Lauren's gorgeous pad in the gallery below.