Relax. There’s not many clubs in London with no grim door purgatory, no pretensions and no dress code (‘just wear clothes’). In an appealingly scruffy ex-Victorian pub is housed a cool Brixton warehouse vibe split between two capacious rooms – one for more hardcore clubbing, one for chilling on comfy sofas (though such obstacles don’t seem to deter determined dancers) – plus, reputedly, London’s largest smoking terrace. And with no official music policy, it’s whatever goes, be it African drums and Peruvian flutes, or hip-hop, Detroit techno, grimy funk and raggalectro (this is Brixton, after all). Plenty of international DJs make this their London port of call, but you won’t hear any chart music unless local Brixton boys Basement Jaxx or Alabama 3 happen to have a hit – both hold regular parties here. In fact, its roster of friends in high places has mushroomed since opening in 2005 (must be the new muso-pleasing Funktion One sound system and onsite recording studio and label). Hot Chip and Orbital also now have residencies, and it’s fast becoming the venue of choice for Brixton Academy after-parties (recently, Massive Attack, Franz Ferdinand and Florence and the Machine). ‘It’s a magnet for music,’ says Jamm’s friendly founder-manager Jonathan Allen. A sticky jam, if you like.