While the provided property data doesn't explicitly detail specific local municipal codes, the location of 170 Queen St in the historic Harleston Village district of Charleston strongly suggests the following regulatory environment:
Board of Architectural Review (BAR): Properties in this area are typically governed by the Charleston BAR, which oversees exterior modifications, paint colors, and structural changes to ensure compliance with historic aesthetic standards.
Design Guidelines: You should expect strict limitations on renovations visible from the public right-of-way. Any plans for exteriors, windows, or additions will almost certainly require prior approval.
Before undertaking any significant exterior work, contact the City of Charleston Planning Department to review the specific overlay district requirements for Queen Street. Their team can provide a definitive list of permitted alterations and the application process for project approval.