[3] Cromwell Road was not always the main traffic route it is now, as when it was built, it ended at Earl's Court.
The Cromwell Road Extension was a mid-late 1950s roadlaying program involving widening and demolition from Hammersmith Broadway to the Great West Road at Chiswick Roundabout as part of the A4 route for Heathrow and the West.
The Kensington Forum hotel, designed by Richard Seifert and built in 1971–1972 as Penta hotel, is located across the road from the West London Air Terminal (1957–1974), which is no longer operational,[7][8] and is situated next to the Gloucester Road station.
The next major crossroads comes at the intersection with Queen's Gate, on the corner of which stands Baden-Powell House, the former headquarters of The Scout Association.
[9] France also maintain several buildings on the road, including the Consular Section of the French embassy.