The fourth edition of the Open House Zagreb Festival will take place from 9 to 11 October, offering a unique opportunity to explore 38 carefully selected buildings, urban ensembles and architectural sites. The programme, shaped by an expert jury, is divided into three thematic sections: Socially Conditioned Housing, Innovation in Heritage Preservation, and The City's New Look. The Open House Zagreb Festival has established itself as a platform that brings architecture closer to citizens, opening a dialogue between the profession and the public. Through encounters with architects, builders, investors and building owners, visitors gain insight into the processes that shape the city, as well as an opportunity to reflect on their own role in its development. The focus is on well-planned space and on sustainability — environmental, social and economic. The Open House festival concept has been winning over the world's major cities for more than three decades. Since the first edition in London in 1992, the Open House Worldwide network now connects more than 80 cities, including Copenhagen, New York, Milan and Prague. Each year it attracts almost a million visitors and records around two million entries into buildings, supported by thousands of volunteers — most often students and citizens who give the festival additional energy and visibility. All programmes are free of charge, further confirming its openness and accessibility. This year's edition raises a number of pressing questions in the field of urban planning. The theme of socially conditioned housing examines how the concept of collective housing developed throughout Zagreb's history and what it means today — whether housing is primarily an economic category or an architectural value, and what we can learn from examples of high-quality residential solutions from the past. The theme of innovation in heritage preservation continues the lines of inquiry that have been central to the festival since its beginnings. In the context of the Zagreb earthquake, the focus is placed on contemporary methods of restoration and new approaches to preserving architectural heritage. The festival presents examples showing how innovation can preserve the city's identity while also redefining its future. The third section, The City's New Look, deals with contemporary architecture as a reflection of society. Architecture is viewed as part of a broader story about the city's identity — about space that must be open, accessible and inclusive. Through the projects presented, the festival promotes the idea of the city as a shared space belonging to everyone. The festival is organised by the Zagreb Open House Association for the Promotion of Architecture and Design. The festival's creative director is Dubravka Vrgoč, and its executive director is Tomislava Blatnik. Guided tours led by architects, art historians and urban planners are free of charge, with mandatory registration via the official website. The festival is realised with the support of the Zagreb Tourist Board, Zagreb International Airport, OTP Bank, Oktavijan, VMD and Velux.