Miranda Kerr and Evan Spiegel have bought a house together for $12 million.

According to TMZ, the 7,100 sq ft gated building is situated on almost an acre of land and boasts six bathrooms, a pool and a home gym and features "spectacular" architecture as it was designed by famous Californian architect Gerard Colcord.

The couple got a bargain on the abode as it sold for $500,000 less than the asking price.

Miranda recently insisted she and the 25-year-old entrepreneur lead a quiet and sedate life together, despite the tech mogul's young age, but she has the "best of both worlds" with him.

She said: "He's 25, but he acts like he's 50. He's not out partying. He goes to work in Venice [Beach], he comes home.

"We don't go out. We'd rather be at home and have dinner, go to bed early. [But] in some ways he does [feel like a younger man]. I'm telling you, I've got the best of both worlds."

And the Australian star feels lucky she and her ex-husband - who is now romancing pop star Katy Perry - have worked hard with their "modern family" in raising their son together.

She said: "Flynn was two [when we split], so it was really hard to make the decision, but our son is our priority so you have to come from love. You have to be kind.

"[Orlando and I decided] that we had to know the person for six months and feel good about them [before introducing them to Flynn]. Evan met Flynn, so yeah, things are going well. Orlando thinks he's great. We're just a modern family now!"