Dropped kerb is denying us parking?

There is a small gated garage backing out into our cud de sac. The owner of it lives in the street before ours, the garage is at the far end of his back garden facing onto our street. They suddenly started blocking off the area in front of it with bollards and fencing or parked their car in front of it to stop us parking there and 2 days later had a dropped kerb installed and as far as we know without permission. I have lived here for 7 years and their garage or shed has only ever been used for storage and a car has never been parked in it. At the front of his home one street down he has a driveway where he can park his car and does not need to park it in our residents parking. Basically it seems he can instal a dropped kerb and park his car in front of it for as long and as often as he wants and when he moves his car we are at risk of having our cars ticketed or towed for blocking his access if we park there. Whenever he has moved items in and out of this garage/storage area his gates open up over the pavement and block pedestrians from walking on it. Our street is a small cul de sac with 55 residents and has around 20 parking bays, three of the parking bays are designated for disabled drivers and as far as we have been told all parking is on a first come first served basis yet he can claim this space as his own whenever he feels like it and park there as often and for as long as he likes because he is not going to get himself ticketed. If he decided to rent his garage out to generate income would that be accepted? Do we as residents have any rights here?