The concept of preventive conservation has successfully introduced the knowledge that "prevention is better than cure" into the built heritage sector. The benefits of this approach are the cost-effectiveness, the improved protection of heritage values, the reduced risk for accumulating deterioration and additional damage, the prolongation of the physical service life of buildings and building parts and the empowerment of local communities in dealing with heritage. Increasingly, arguments rise against reactive treatment patterns, which result too often in postponed interventions and increasing costs for restoration. WTA-Nederland-Vlaanderen, the Raymond Lemaire International Centre for Conservation and the Civil Engineering Department of KU Leuven jointly organised an international conference on preventive conservation approaches - including climate and damage monitoring - and how to implement these monitoring tools within a systemic approach. The conference took place in context of the international WTA days, 3-5 April 2019, and the 10th anniversary of the UNESCO Chair on Preventive Conservation, Monitoring and Maintenance of Monuments and Sites (PRECOM(3)OS). The contributions meet the increasing demand for information, case studies and practical examples to support the transition towards more preventive rather than reactive conservation actions. The volume aims at academics and professionals involved or interested in the conservation of buildings, building parts and heritage.

Several international and European institutions have given increasing importance to sustainable approaches to our existing building stock and the role of built heritage in this process. At the same time, preventive and planned conservation of built heritage has been increasingly recognised by researchers given its cost-effectiveness for owner-managers, effective long-term quality protection and environmental enhancement of structures, as well as its potential of activating heritage in the employment sector and empowering of local communities. 'Innovative Built Heritage Models' collects the lectures presented at the international conference on CHANGES (2017 Thematic Week, Leuven, Belgium, 6-8 February 2017). The aim of the conference was to provide an international overview of the existing strategies, processes and operational case studies that support the implementation of a preventive and planned conservation approach in the built heritage sector. The conference twins with the 'CHANGES' project, supported by the Joint Programming Initiative Heritage Plus programme. This publication meets the increasing demand for shared information to support the transition towards a more sustainable conservation process. The volume consists of three main parts: 'The CHANGES paradigm', 'Preventive and planned conservation' and 'Case studies of Change'. The book reflects on CHANGES in a straightforward manner by providing research and case studies that serve as baseline records, guidance and essential literature for researchers and practitioners involved in the built heritage sector.