New shops on land at police headquarters at Middlemoor would cause traffic chaos, according to city planners who have recommended it be refused.
Devon and Cornwall Police have sold eight acres to help pay for what they call a new criminal justice hub.
Work began this summer on building work.
Now developers want to build eight shops, three fast-food restaurants and a gym, but Devon County Council say that traffic access isn't safe enough.
Exeter City Council planners will debate it next week, but have been recommended to turn it down.
Poisonous trees near park may have to be removed
Plymouth's £750 million debt is good for city, council claims
Drydon Road traffic scheme: you help decide
Three injured in Plymouth street fight
Pedestrian dies in Brixham crash
