Within a two minute walk of Kemp Porter there is a Tesco Metro and Sainsbury’s Local which are very convenient and able to provide almost anything required for cooking/essentials. Both of these shops are open until 11pm.
Alternatively there is also a Asda Superstore located about a 20 minute walk away in Park Royal. This is an enormous supermarket in which more niche items can always be found and usually at a better price then the smaller shops. Many students opt to do a large weekly shop at Asda and pick up daily essentials at Tesco/Sainsbury’s.
The immediate vicinity around Kemp Porter does not have many shops, however Westfield London is located only three tube stops (5-10 mins) away. This is one of the biggest shopping centres in the UK and has a very broad selection of shopping as well as a food court.