Beyonce's Mom -- Sells Texas Mansion at $500,000 Discount

Beyonce's mom really wanted out of her Texas-sized Houston mansion, so much so, she was willing to knock $500,000 off the listing price to get it sold, TMZ has learned.

We broke the story ... Tina Knowles tried to unload her 8,885-square-foot pad last September for a whopping $3.499 Million ... but it sat on the market for nine months with no takers.

She finally sold it this summer ... but for a whole lot less than she planned, accepting an offer of $2,962,500.

The house is a steal for the new owner -- it has 5 bedrooms, 5 baths, sits on 2.6 acres, and boasts a resort style pool, gym AND a giant media room where you can watch Beyonce tear it up in "Goldfinger" as many times as you want.