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Get an insider experience of OHC.

What do OHC volunteers do?

Volunteer Greeters are assigned to all OHC sites to welcome and count guests, answer questions and assist with crowd control and line management. Greeters typically work one four-hour shift, which leaves plenty of time to explore the city the remainder of the weekend.

Leadership Volunteers help us keep OHC running smoothly by working a full-day shift, overseeing either a cluster of nearby sites, or one particularly busy downtown site.

Why should I volunteer for OHC?

In addition to meeting visitors from all over the world who share your enthusiasm for the city and its architecture, OHC volunteers receive:

  • A Priority Access pass and admission to Members Only sites for two
  • Discounted CAF membership
  • Discount coupon to use at the CAF Store
  • OHC t-shirt souvenir
  • Two free CAF walking tour passes
  • Additional benefits for Leadership Volunteers

How do I sign up?

If you're interested in volunteering for Open House Chicago 2018 on October 13 and 14, sign up here. We’ll get in touch with you over the summer with more information.

If you have any questions or inquiries about volunteering for Open House Chicago, please email