Siiri is member of Linnalabor since 2011. She`s been interested in spatial education, children`s involvement and participation in urban planning. Since 2014 she has organized architectural competition for school children. Topics of the competitions have been "My dream school" (2014), "My dream schoolground" (2015) and "My dream home street" (2016). She also organized children guided urban walk in 2016 June. In 2012 she was the arranger of yearly conference of INURA (International Network for Urban Research and Action). Siiri is studying Urban Governance as an MA at Tallinn University. Lately she`s focused on innovative solutions for school grounds` greening and (re)development.

Koolihoovid võiks pakkuda midagi palju enamat - Siiri Treufeld kirjutab koolihoovide mitmekesistamisest ja potentsiaalist linnaruumis (Postimees, 25.10.2016)