Sick or elderly people are being prevented from popping in to their local pharmacy because they risk getting a fine or being clamped if they park nearby.
A 100-name petition collected by the owner of the Malt House Pharmacy shows the extent of the problem, particularly as people often arrive at the chemist with prescriptions immediately after they've been to the doctor's surgery or the health centre.
Owner Ashita Mashru said her customers may have a sick child in the car who they won't want to move far, and they certainly wouldn't want to leave them alone and out of sight.
If they park on the yellow lines they are in danger of getting a parking ticket and if they park in the pub next door they get clamped.
Mrs Mashru, who has owned the Malt House for 24 years, said: "It is also difficult for elderly people visiting the chemist who may not be very mobile but are not allowed to park on a yellow line. After all, not everyone who is a bit unsteady on their feet has got a disabled pass.
"Parking is allowed on all the other three roads off the roundabout. We are the only one with no parking.
"We don't want permission for cars to be outside here all day as that would still prevent anyone staying for a short while.
"All we are asking for, and all our customers need, is a couple of spaces where they can wait for 20 minutes or so."
Mrs Mashru is supported by Harefield Tenants' and Residents' Association, who would like to see something done quickly to help customers and the chemist shop in Breakspear Road North.
Chairwoman Pauline Crawley said: "We have sent off the petition which needs at least 20 signatures of people showing an interest.
"We feel the road is wide enough to do this and there definitely should be a time limit so the spaces are not abused."
Mary Worrall, Head of Highways and Green Spaces at Hillingdon Council, said: "We are keen to help businesses in shopping parades, especially if customers have difficulty in finding convenient parking nearby.
Before introducing any new parking scheme we seek to establish whether there is sufficient support and local people will be consulted before any changes are made.
"The council has advised shops in Breakspear Road North to send in a petition requesting a Stop and Shop scheme for this parade which can then be considered.
"We are keen to assist and will be happy to meet with shopkeepers to explain further." [25a0] If any residents have suggestions about parking in the borough, they can contact the council at firstname.lastname@example.org or 01895 556000.
Ashita Mashru and the yellow lines outside Malthouse Pharmacy.