Henry Holland’s pad is mad for fads.

The black wooden floor of Henry Holland’s London studio is covered in smudges of white spray paint, the result of his muse, Agyness Deyn, having sprayed her platinum blonde hair a powdery white for designer Gareth Pugh’s recent Halloween party.

The spray paint is only one stripe in the rainbow of clutter that fills the Covent Garden base of the House of Holland designer. There are also Fifties plastic Parisian cafe tables, kooky soft toys and a room stuffed with Holland’s signature Day-Glo Ts with cheeky slogans such as “Get Your Freak On With Giles Deacon” and “Scream Uhu, Gareth Pugh.” He says the colorful and chaotic studio has become an unofficial hangout for his crowd, including his friends, Deacon and Pugh.

“It is a sociable space,” says Holland. “All my friends come here for lunch, and for a couple of drinks before we go out.”

The space is a new one. After Holland’s T-shirts—which started last year as an inside joke with the fashion crowd—took off and began to grow into a full-fledged business, he decided it was time to move on from designing in his ex-flatmate Deyn’s old bedroom. In March, he moved to this space near Charing Cross Road, on a street that’s known as London’s Tin Pan Alley, thanks to the musical instrument shops in the higgledy-piggledy Victorian buildings lining the road.

“It’s a really weird street—it’s like a village,” says Holland, adding that other floors of his building are occupied by an employment bureau for chambermaids and a gritty guitar shop. “It keeps it quite tatty, which is nice.”