The Wolseley Piccadilly
British in London with highchairs — 4.4★ (7,683 Google reviews).
Seafood · London
Caviar House Piccadilly is a seafood in London. Features include child-friendly options on the menu and step-free access for buggies. Currently rated 4.5★ on Google from 290 reviews. Listing details should be confirmed before visiting — call ahead if you have specific accessibility or dietary needs.

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 — 4.4★ (7,683 Google reviews).
Elegant Piccadilly café with lovely pastries, highchairs, and buggy access — great for a relaxed family lunch.
Turkish in London with outdoor seating — 4.5★ (2,199 Google reviews).