Interior Alteration - Commercial

Altering in any way the interior space of a structure which includes demolition, addition, improvement or renovation of the structure. Interior alterations shall be built in accordance with County Building Codes.

For assistance with development of a commercial project, please contact the Department of Economic Development via info@ecalvert.com.

County Projects

Required Permit Applications and Forms

Requirement More Information Link(s)
Building Permit Commercial Interior Alteration construction requires a Commercial Building permit. Commercial Building permit
Fire Marshal Form Commercial Interior Alterations require review and approval by an Office of State Fire Marshal Protection Engineer. Fire Marshal form
Electrical Permit Commercial Interior Alteration electrical work requires an Electrical permit submitted by a licensed master electrician. Electrical permit
Plumbing-Gas Permit Commercial Interior Alteration plumbing and/or gas work requires a Plumbing-Gas permit submitted by a licensed master plumber. Plumbing-Gas permit
Water Sewer Permit Commercial Interior Alterations where the property is served by public water and/or public sewer require a Water Sewer permit. Water Sewer permit

Water Sewer Department webpage
Historic Permit Commercial Interior Alterations where the property is a designated Calvert County Historic District require a Historic Area Work permit. Historic Area Work permit, HAWP Instructions
Environmental Health Department Review Properties served by well and/or septic will require an Environmental Health (EH) Department review. A Site Evaluation application (percolation testing), and a Sanitary Construction permit application may be required based on the scope of work. If the permit involves construction of an exterior structure, please see item 8 on the attached Building permit FAQ page for setback requirements.

Please note that by submitting a building permit application our office is granted permission to conduct site visit(s) as necessary at our discretion to facilitate the review of the project. If you need assistance locating the well and/or septic systems, you may fill out a Public Information Request Form to obtain the property's file.
- Building Permit FAQ

Plan Submittal Requirements

The following information must be submitted with applicable permit application(s):
  • Building Permit plan requirements
  • Construction plans: Signed and sealed architectural drawings, prepared by a Maryland licensed architect, with MEPs (mechanical, electrical, and plumbing) prepared by a Maryland licensed professional engineer.

Other Potential Requirements

Requirement More Information Link
Beach Application Approval IF the property is located in the town limits of Chesapeake Beach or North Beach, a Beach Application Approval is required to be submitted with the Building Permit Package. Chesapeake Beach

North Beach