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Building Division


Submittal requirements for a detached barn, garage, or storage structure permit:

Applicants may utilize Douglas County’s approved foundation designs for one-story detached structures only.  Any structure that is more than one story, or is attached to another structure, or is larger than the following square footage limitations shall require a foundation designed by a Colorado registered Professional Engineer.

Prefabricated steel buildings regardless of size require a stamped-engineered foundation and building design.

Zoning Regulations will need to be met, regardless of the structure size. Contact a Site Development Administrator at the Douglas County Building Division 303.660.7497 prior to the start of construction to verify the Zoning requirements.  To better assist our customers through the plan review permit/building permit process and avoid potential delays, please view, print and submit view the Residential Accessory Structure Usage Disclosure.