Certificate of Alteration

A Certificate of Alteration is required prior to any work or projects impacting the exterior appearance of any designated local landmark or any property located within a historic district.  

Routine Maintenance and Repair

Minor alterations to historic landmarks and historic district properties may qualify for administrative review, meaning that the application does not require a public hearing and the applicant does not have to appear before the Historic Landmark Commission.  Please contact Historic Preservation Officer Amy McWhorter at amcwhorter@nbtexas.org for more information or to see if your project qualifies. 

Historic Landmark Commission Review


For projects that do not qualify for administrative review, the Historic Landmark Commission will review and render a decision on the certificate of alteration application within 45 days of your application. Applicants aggrieved by Commission rulings on certificates of alteration have 30 days to appeal the case to City Council. The certificate for alteration is in addition to and not in lieu of any building permit required by any other ordinance of the city. 

Expedited Review for Downtown Projects

Certain projects in the Downtown Historic District may qualify for expedited review.  Please contact Historic Preservation Officer Amy McWhorter at amcwhorter@nbtexas.org to see if your project qualifies for expedited review. 

Applications