It can be frustrating to get a building permit and then find that there is another potentially costly hurdle before you can start your development. These eight tips will help you make sure you minimize the cost of your party wall. If one of the parties is not satisfied with the conditions of the arbitral award, it may, within fourteen days, appeal to the local district court. Waterfront owners should be aware that building owners have the right to modify party walls, provided that the proposed changes fall within the limits of the law. If you intend to appeal an arbitration award, seek legal advice first. Although the fee collected by Party Wall Surveyors varies depending on their expertise and nature of work, most of them charge an hourly rate for their services.