At the front of my property there is a small wall with an iron railing. The railing stops people on the driveway falling into my neighbours property which is about a meter lower than my property. The wall is mine and is fully on my property and extends from the front of the garage and runs for about 3 meters. I recently rented out my house and when the tenant left I noticed that the wall has been rebuilt but with no railings. At no point was I asked if the wall could be changed and now that it doesn’t have a railing on it, it could be a hazard as there is nothing to stop someone getting out of their car on the drive and tripping and falling over the wall (it’s about 60cm high). I am trying to find out who did this work but I presume that whoever did this has broken the law as it is a modification to my property without my permission. There may also be a breach of covenant which could be a problem when I come to sell the house. Does anyone know if the law has been broken and can I force the person who did this to replace the railings?