And as my mother used to say, “If IFs and ANDs were pots and pans, there’d be no need for tinkers.”
This is a simple contractual question. The parking space is part of her rent agreement. Take away the parking space, then remove that component of the rent. It doesn’t matter who else is inconvenienced – that is a result of their shared ownership of common property with a consequential benefit to the block in which they will share.
And if the benefit to the residents from the repaired driveway is so great as to make up for the loss of parking, then the landlord will be compensated for the loss of rent by the claimed reduction of wear and tear on tyres far into the future.