Building Crossovers and Fences Discover information about crossovers and dividing fences. Fact Sheets Find information about fences, carports, buildings and more. Fee Calculators Discover our six online calculators to help you calculate building and planning application fees. Granny Flats Find out about granny flats or lodge a building permit for a granny flat. Owner Builder Learn about what is required if you are a owner builder. Permits and Fees Submit a building application or find out which permit you need. Request Copy of Plans Request copies of plans for your property. Sheds, Pergolas and Patios Find out what building permits are required for sheds, pergolas, patios and shade sails. Small Business Approvals Learn more about whether you need building approval to refurbish your small business. Solar Panels Learn more about building permits to install solar panels on multiple or commercial dwellings. Swimming Pools and Spas Read the requirements for installing pool and spa safety barriers. Unauthorised Building Works Learn about building approvals and retrospective building approvals.