The County of Dufferin building services remain business as usual during the current emergency order.
The link below does speak specifically about construction being “allowed”
https://www.ontario.ca/page/enhancing-public-health-and-workplace-safety-measures-provincewide-shutdown
It appears you are trying to access this site using an outdated browser. As a result, parts of the site may not function properly for you. We recommend updating your browser to its most recent version at your earliest convenience.