The ordinance does not apply to townhouses, which are defined as follows by Section 202 of the International Residential Code:
Townhouse: A single-family dwelling unit constructed in a group of three or more attached units in which each unit extends from foundation to roof and with a yard or public way on not less than two sides.
If you believe that your townhome has been misclassified, please email energizesmallbuildings@denvergov.org with documentation that demonstrates how your building meets the above definition of townhome (e.g. blueprints, floor plans, site development plans, photos, etc.).