The vehicles are driving on the left side of the road, which is characteristic of the UK. The architecture features classic red-brick buildings with white trim, typical of London. There is a flag visible on the left that resembles the flag of Afghanistan, suggesting this might be near a diplomatic mission. The general urban atmosphere and street layout strongly point to a central London neighborhood. I am fairly confident this is in London, England.

then: forward

The flag on the left is clearly the flag of the Russian Federation, indicating this is the Russian Embassy in London. The location is on Kensington Palace Gardens, a very exclusive and well-known street. The architecture and the presence of high-security fencing confirm this is a diplomatic area in central London. I am very certain this is near the Russian Embassy in Kensington.

then: guess