Brent’s postcodes are NW2 (Cricklewood and Dollis Hill, shared with Barnet and Camden), NW6 (Kilburn and Brondesbury, shared with Camden), NW9 (Kingsbury and Queensbury, shared with Barnet), NW10 (Willesden, Harlesden, Kensal Green, Neasden and Park Royal), HA0 (Wembley Central, Alperton and Sudbury), HA3 (Kenton, shared with Harrow) and HA9 (Wembley Park and the stadium). Shared postcodes matter here: a Kilburn business has customers in Camden’s half of NW6 and a Kingsbury one in Barnet’s half of NW9, and the service area on the listing should say so.
Wembley Park, around the stadium and the arena, has been rebuilt over the past decade into a dense new neighbourhood of flats, the London Designer Outlet and the restaurants that serve both residents and event crowds. Wembley Central and Ealing Road are the older high streets, with the South Asian grocers, jewellers, sweet shops and restaurants customers travel across London for. Kilburn High Road is a long inner-London high street shared with Camden. Willesden Green, Harlesden’s Jubilee Clock, Kensal Rise’s Chamberlayne Road and Neasden’s parade are the others. The Welsh Harp reservoir, the Neasden Temple and the Kiln Theatre are the landmarks customers name.
Wikipedia describes Brent as "known for landmarks such as Wembley Stadium, the Swaminarayan Temple and the Kiln Theatre", and notes that it "also contains the Welsh Harp reservoir and the Park Royal commercial estate" (Wikipedia, CC BY-SA). Those two commercial facts, the stadium and Park Royal, shape search in Brent more than anything else: one creates spikes of visitor demand on event days, the other a steady business-to-business market that never appears on a high street.