Start with the people in your group, not the list of landmarks.
A bus tour is a decent answer when everyone wants a simple overview, the budget matters, and nobody minds staying on the public route. Sit up top, see the landmarks, take the photos, job done.
A taxi tour earns its keep when the day needs a bit more care. Children get tired. Grandparents may not want to stand in drizzle. Someone wants Westminster, someone else wants old pubs, and someone has just realised that London traffic is not a minor detail.
With a private taxi, you have a guide, a vehicle, and somewhere dry and sheltered between stops. The day can lean towards royal London, the City, old pubs, film locations, markets, the South Bank, or the quiet street that makes the morning feel less like a checklist and more like London.
If you want the route, pace, and stops adjusted for your group rather than handed down by a bus timetable, compare Tally Ho's private tours and tailored tours. If royal London is the main reason for the trip, our guide to Changing of the Guard dates, times, and tips is a useful planning companion.
