ICOMOS
INTERNATIONAL
SCIENTIFIC COMMITTEE ON TWENTIETH
CENTURY HERITAGE
About us
The ICOMOS Twentieth Century Heritage International Scientific Committee is inter-disciplinary in its membership and recognises the diversity of regional and cultural expression in twentieth-century heritage. The ISC20C welcomes expert, associate, emerging professional and institutional members.
The committee focuses its efforts on conserving and celebrating mid to late twentieth-century places that are most at risk through lack of recognition and protection.
The committee co-ordinates a range of projects, conferences, declarations, and publications to address these issues. The Heritage Alerts program is a key advocacy project through which ISC20C raises international public consciousness about specific sites under threat.

Webinar: From Heritage Alert to Future Actions – Case of Post-World War II Modernist Belgrade and Beyond
Event Details: Join the upcoming webinar, “From Heritage Alert to Future Actions: Case of Post-World War II Modernist Belgrade and Beyond,” on 30 September, 2026,

Open Dialogue: Reimagining Heritage of the 20th Century
Join ICOMOS Africa and the ICOMOS International Scientific Committee on Twentieth Century Heritage (ISC20C) for a webinar exploring the narratives, challenges, and opportunities of 20th-century architectural heritage across Africa.

Rethinking 20c Nordic Heritage – Framework for Future Practice
Join experts from across the Nordic region, our keynote speaker Susan Macdonald (Head of Field Projects, Getty Conservation Institute & Co-President, ICOMOS ISC20C) and moderator

2026 AGM & SYMPOSIUM
Kuching, Sarawak (Malaysia) | 16 October 2026 Dear ISC20C members, with great pleasure, we announce that the 2026 ISC20C Annual General Meeting & Symposium will take place
ISC20C Recent News

2022 Annual General Meeting
Our 2022 Annual General Meeting will be held this June in Porto, Portugal from June 29th – July 1st. We hope you will join us!

Apply to the Fund of the 2003 Convention for the Safeguarding of the Intangible Cultural Heritage
UNESCO Intangible Cultural Heritage is currently seeking applicants for its 2003 Convention Fund. Read more about the opportunity and join information sessions here.

Publication of The Cádiz Document
The ICOMOS International Scientific Committee on Twentieth Century Heritage (ISC20C) is pleased to announce the publication of “The Cádiz Document: InnovaConcrete Guidelines for the Conservation