A permit system has been introduced week to protect parking spaces used by families living in Ashbourne's Dales Housing sites.
Tenants living in one of five areas governed by Dales Housing have been given the permits, one for visitors and an extra one for occupants that use a car.
The system has been put in place to stop non residents using parking spaces, following the association receiving complaints from residents and visitors struggling to use their designated spaces.
Drivers caught parking without the new permits could face fines of up to £100 - which would be dropped to £50 if paid quickly.
Dales housing has drafted in a specialist parking company, Liberty Solutions, to monitor the spaces, which are dotted around Ashbourne at identified problem spots.
Lakeside in Park Avenue, Shawcroft Flats in Park Road, Malthouse Court in Hall Lane, Town Head in Cokayne Avenue and Malbons Yard, Compton are all now subject to the restrictions.
Andrew Pitcher, tenancy services manager at Dales Housing said: "We’ve tried putting up signage asking people not to use the spaces, and dropped bollards, but it has proven ineffective. We're hoping this will be the most effective way of protecting the parking spaces for our tenants, and we will be reviewing it in the next few months."
"If it works well, we may consider rolling it out to other Dales Housing parking hotspots in the future."