People are making as much as £12 an hour renting out driveways or spaces online because of the lack of parking in and around Norwich.
Homeowners who don't need to use their own garages or off-street spaces are using the YourParkingSpace site to cash in.
One person with a garage at their home in Templemere, off Sprowston Road, wants £450 a month and another in a new home in Bishy Barnebee Way, Bowthorpe, is charging nearly £12 an hour for their car parking spot.
MORE: See inside Norwich's coolest offices
The money-making scheme has evolved from the lack of parking and the cost particularly when Norwich City are playing at home or for commuters having to leave their cars at the station every day.
And for people with new homes which usually come with a garage, or who have a driveway they don't use, it's an easy way of making a few extra quid. The idea is nothing new in other major cities though. In London people living close to big sporting events such as Wimbledon have rented out their amenities for many years - and the craze has caught on.
Homeowner Alun Housago, from Lakenham, rents his garage out for £37 a month. "It pays for a meal, maybe once a month, and helps people who are struggling to find parking for work."
Another homeowner, from Wilson Road, Thorpe Park, was recently unable to drive due to medical reasons and so has been renting out her driveway on a monthly basis to a commuter.
The homeowner, who did not want to be named, said: "My house is only a five minute walk from the railway station and it's also near the football ground. I've got a private parking space which I can't use so I thought it's a good way of making a bit of extra money while helping someone else out too.
"I only get £50 a month from hiring the space Monday to Friday, 9am to 5pm, but the space would have just been sitting there empty. I feel I'm helping someone. I've never met the young lady who uses it but I know it was her first job so for her to pay to park her car at the station would have been really expensive."
YourParkingSpace has more than 50,000 people registered and allows you to list your space for no charge. It handles the payment and driver details and makes its money by charging 20% on top but you can set your own price and times when the space is available.
Managing director Harrison Wood said: "Some people use the extra money to cover life's essentials, like paying the gas and electricity bills, while others spend it on little luxuries."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here