Zayna
Indian in London with highchairs and outdoor seating — 4.2★ (640 Google reviews).

Gastropub · London
The Grazing Goat Pub & Boutique Hotel Marylebone is a gastropub in London. Features include a dedicated kids menu, highchairs available and outdoor seating. Currently rated 4.4★ on Google from 2,287 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.
Indian in London with highchairs and outdoor seating — 4.2★ (640 Google reviews).
Buzzy Antipodean brunch café near Marble Arch — highchairs, buggy-friendly, vegan options and a lovely outside area.
All-day Mediterranean grill restaurant with an open kitchen in the Hyatt Regency London – The Churchill hotel.