Basement Finishing: Permit Requirements

Whether you choose to finish your basement by yourself, or hire a contractor to do the work, it is always necessary to acquire a building permit.  Pulling a permit is a critical step in the basement finishing process, as it ensures that the work is done in compliance with building code.  Always be wary of any contractors who do not pull permits.  A construction project that is not accompanied by a building permit is not only a building risk, but an issue when homeowners try to sell their homes.

The requirements of building departments may vary slightly from jurisdiction to jurisdiction, so it is always a good idea to research the requirements prior to applying for a permit.  The International Residential Code is an excellent resource for building codes, and a quick summary of general Colorado basement finishing code requirements can be found at the following web site:

Colorado Chapter of the International Code Council: Basement Building Guide

To apply for a permit, the following items must be included in a drawing: 

1. Scaled drawing of the space

2. Means of egress

3. Room descriptions/labels

4. Smoke detector locations

5. Electrical, plumbing and HVAC locations

6. Ceiling height

A fee is charged for the building permit, and the amount is typically based on the estimated material value plus plan review fees.  As of 2011, this amount tends to average approximately $1/square foot of finished basement space.  After the permit is acquired, the basement finishing work may begin.  The building department will inspect the basement throughout the project at particular basement finishing building milestones to ensure that the work is in compliance with building code.   Once the basement finishing project is complete, the permit is 'signed off' and filed as complete with the building department.

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