The specialist book "Building Code Law Lower Saxony" offers a comprehensive and updated collection of relevant legal regulations for building code law in Lower Saxony. In its 15th revised edition, it takes into account the extensive changes of recent years, including the amendment of the Lower Saxony Building Code (NBauO) as well as adjustments in the Building Fee Ordinance (BauGO) and the Building Code (BauGB). The book has been a reliable source for professionals for over 40 years and provides a structured overview of the applicable laws and regulations. The clear division into three parts allows for targeted and efficient use of the work. Part A includes the NBauO and the associated regulations, Part B addresses other relevant laws and regulations, while Part C contains technical construction regulations. A newly introduced page index facilitates quick access to information and enhances the user-friendliness of the book.