Derby looks compact on a map, but it splits in ways that matter to a service firm.
Derby City Council runs the city itself, while Belper and Duffield sit in Amber Valley, Ilkeston and Long Eaton fall in Erewash, and the villages to the south belong to South Derbyshire.
A customer in Duffield and a customer in Normanton may both say they live in Derby, yet they search, travel and compare firms differently. Roads shape the working day.
The A38 runs along the west side of the city, the A52 heads east towards Nottingham, the A50 carries traffic to the south and the A6 follows the Derwent valley north.
Inside that frame, the inner and outer ring roads decide how long a van takes to cross from Mickleover to Spondon.
Housing changes district by district: Victorian terraces near the centre and in Normanton, inter-war semis across Chaddesden, Littleover and Allestree, and newer estates on the city edge. Student lets gather near the University of Derby on Kedleston Road.
Rightmove, Zoopla and OnTheMarket hold the searches from people browsing homes. Estate agents belong to a redress scheme, gas engineers hold Gas Safe registration and electricians usually work under a scheme such as NICEIC or NAPIT.