The 17th Open House Slovenia Architecture Festival returns from 17 to 19 April 2026, opening the doors of more than 100 outstanding architectural projects across Slovenia and beyond. From contemporary homes and public buildings to cultural institutions, construction sites and urban walks, the festival offers visitors a unique opportunity to experience architecture from the inside through free expert-led guided tours.

This year’s theme, All Measures of Architecture, explores how architecture shapes our lives at different levels — from the intimacy of the home to public space, landscape and community. It asks: Where is architecture headed? Who does it speak to? For whom is it designed? Beyond physical dimensions, the festival highlights architecture as a measure of relationships, inclusivity, responsibility and dialogue.

Visitors will be able to explore a rich selection of projects across the country, including newly completed buildings, heritage sites, innovative timber architecture and some of the most significant construction sites currently underway in Slovenia. The programme also extends beyond Slovenia’s borders, with selected guided tours from Slovenian authors in Trieste, Italy.

A special feature of the festival is its emphasis on the direct experience of space: architecture is not only observed from the outside, but entered, felt and understood through movement, light, material and everyday use.

Admission is free, with mandatory registration opening on 8 April 2026 via www.odprtehiseslovenije.org/festival, where the full programme is also available.

Visitors can also vote for their favourite projects through the OHS Award 2026, starting on the first day of the festival.