The 'Black and Yellow' rapper has purchased the 3,891 square-foot mansion in Canonsburg, Pennsylvania, which will be the first house for the couple.
The luxury property - which is eco-friendly - sits on 2.8 acres out in the country and boasts five bedrooms and four baths.
It features Brazilian Kos floors, stainless steal appliances and a lavish master suite as well as a separate guest house.
The couple got engaged earlier this year and Wiz took to his twitter account to reveal the model accepted his proposal after more than a year together.
In a message accompanied by a picture of the 28-year-old beauty's engagement ring, he tweeted: ''She Said Yes!!! (sic)''
Following the announcement, Amber - who famously dated Kanye West - took to her twitter account to express her joy.
She wrote: ''He has made me the Happiest Woman in the World!!!! (sic).''