Mercer Roof Terrace
British in London with highchairs and outdoor seating — 4.4★ (500 Google reviews).
Restaurant · St Pauls
Vintry Kitchen sits in the heart of the City, just a short walk from St Paul's Cathedral, making it a handy spot if you're exploring that part of London with the family. The kitchen puts proper food front and centre, and practically speaking, they have highchairs and a children's menu ready for younger diners, plus baby changing facilities and step-free buggy access to make things easier. There's no outdoor seating, but as a comfortable, family-friendly spot in a busy part of the city, it does the job well.

The secret to a calmer meal out? Something to do that isn't a phone. Each pack is full of screen-free bits and bobs to keep little hands busy at the table and buy you a proper sit-down. Three printable packs, one for each age (toddler, preschool, primary) — free, straight to your inbox.
British in London with highchairs and outdoor seating — 4.4★ (500 Google reviews).
Contemporary Thai chain restaurant with bronze Buddhist sculptures & traditional carvings.
Hamburger in London with highchairs — 4.1★ (3,139 Google reviews).