Guillam Coffee House – Notting Hill

Single-origin beans are the draw here, sourced globally and stamped with detailed tasting notes — dark chocolate, brown sugar and hazelnut from Brazil; blackberry jam and blueberry from Ethiopia — and you can pick up a bag to brew at home. Doors open at 7:30am on weekdays, making it a practical stop for early risers in Notting Hill, whether you're after a quick takeaway or a sit-down cup. A 4.5-star rating from 283 reviews suggests the speciality focus is paying off.