For once, it’s not a hotel we’re going to talk about, but a house for sale. Located in the arts district of downtown Los Angeles, this renovated warehouse was once home to the clothing brand Serious. Founder Magnus Walker later used it to store his world-famous Porsche collection. It is now for sale. Dating back to the early 1900s, the two-storey brick loft is now a multi-purpose space including residential areas, a courtyard with parking for 12 cars, an art gallery and a private garden path. Countless high-profile TV, film and MVs were shot there, as the site features a huge rooftop with skyline and mountain views, as well as a wide range of commercial street-front options. To rent the place, you’ll need a solid $20 million base. But when you love, you don’t count…