Subdivisions are regulated by State Statute and County Subdivision Regulations.
In order to apply for a subdivision, a Pre-Application meeting is required. This meeting allows County Staff an opportunity to review the plans, answer questions and address concerns of the applicant.
Pre-application meetings are scheduled through the Community Development and Planning Department.

Amendments to the Lewis and Clark County Subdivision Regulations were Adopted by the Board of County Commissioners and are effective May 14, 2019. 

Current and Past Subdivision Regulations:

Click to View:

Current Regulations

2013 Regulations

2010 Regulations

2009 Regulations

2007 Regulations

2005 Regulations

1999 Regulations