Answer: A dropped kerb allows vehicles to cross to and from a driveway without damaging the pavement, the kerb or the gas, electricity and water services beneath. Your local authority should have consented or issued a licence in relation to the dropped kerb. Parking across it is classed as an obstruction and councils will take enforcement action, but their procedures vary.
A civil enforcement officer can issue a Penalty Charge Notice if access has been obstructed but the complaint must be made to the council by you. You will probably be asked to confirm in writing that you are the landowner.
If a vehicle obstructs your driveway so badly you cannot access it, you could call the 101 police non-emergency line. The police may either trace the owner of the vehicle and get them to remove it, or they could move it themselves, depending on the circumstances.
If people regularly park in front of your driveway you could apply to your local authority for a white line to be marked there, as this will often deter drivers.
What's your problem?
If you have a question for Fiona McNulty, email email@example.com. We regret that questions cannot be answered individually.These answers can only be a very brief commentary on the issues raised and should not be relied on as legal advice. No liability is accepted for such reliance. If you have similar issues, you should obtain advice from a solicitor.