sohoWifi
Tap Coffee's Rathbone Place espresso bar in Fitzrovia London, opened 2011, runs a serious filter and espresso menu using Has Bean and other small-batch UK roasters.
Signature drink: Flat white
Tip: The standing counter at the front is the fastest morning queue. Closes at 17:00 weekdays and 16:00 weekends.
kings-crossWork-friendlyWifi
Caravan's flagship cafe inside the Granary Building in King's Cross London, opened 2012, runs an in-house coffee roastery and an all-day eclectic Antipodean menu.
Signature drink: Caravan blend espresso
Tip: Plug sockets along the canal-side window seats. Brunch runs to 16:00; dinner from 17:30 on weekdays.
notting-hill-bayswaterWifi
Bill Granger's Australian breakfast room on Westbourne Grove in Notting Hill London, opened 2011, runs ricotta hotcakes and an all-day brunch menu with serious flat white.
Signature drink: Workshop coffee
Tip: No bookings. The 09:00 queue runs 30 minutes on Saturdays; weekday breakfast walks in by 08:00.
fitzroviaWork-friendlyWifi
The 1890s Victorian public toilet beneath Foley Street in Fitzrovia London, converted in 2013 into a basement coffee bar serving single-origin espresso and weekday brunch.
Signature drink: Single-origin espresso
Tip: The urinals are the bar counter; the cubicles are dining banquettes. The Clerkenwell branch on Great Eastern Street has more workspace.
clerkenwellWork-friendlyWifi
Stephen Rapoport's first Department site on Leather Lane in Clerkenwell London, opened 2010, runs Roundhill Roastery beans and a tiled industrial-Victorian cafe space.
Signature drink: House espresso blend
Tip: The Leather Lane original takes laptops; their other 40-plus sites range from work-friendly to grab-and-go.
covent-gardenWork-friendlyWifi
Robert Robinson's Notes Coffee on St Martin's Lane in Covent Garden London, opened 2010, runs an in-house roastery, a focused wine list at night and a daytime work cafe.
Signature drink: House espresso
Tip: The downstairs basement is the laptop-friendly room. After 18:00 it pivots to a small-plates wine bar.