Technically, yes. The McKinney Historic Preservation Ordinance does not regulate paint colors in the Residential Area of the Historic Overlay District. However, it is strongly recommended that you don’t paint unpainted masonry (brick or stone). Should you want to remove paint from masonry, the Historic Preservation Office recommends that you not use abrasives, such as sandblasting or any other blasting method, but instead, consider a gentle paint removal techniques.
Changing paint colors in the Commercial Area does require an approved COA. The COA must be obtained for this prior to completing the work.