DC's most common code violations include unpermitted construction, illegal basement conversions, property maintenance failures, work exceeding permit scope, and zoning violations. DOB enforces the DC Construction Codes and Housing Code.
The most frequently cited code violations in Washington DC include: unpermitted construction or renovation (especially in rowhouses and historic districts), illegal basement apartment conversions, work performed beyond the scope of issued permits, property maintenance violations (deteriorated facades, broken windows, trash accumulation), zoning violations (illegal uses, exceeding lot coverage), fence and retaining wall violations, and housing code violations (substandard living conditions, lack of heat, pest infestations). DC is particularly strict about unpermitted work due to the high density of historic properties. Work in historic districts requires additional review by the Historic Preservation Office (HPO). The city enforces the DC Construction Codes (based on International Building Code), the Housing Code (Title 14 DCMR), and the Zoning Regulations (Title 11 DCMR). DOB conducts both complaint-driven and proactive enforcement. Illegal basement apartments are a major enforcement focus due to safety concerns. The city maintains an online permit lookup and enforcement history database.
Unpermitted work: fines $1,000-$4,000 per infraction plus retroactive permit. Historic district violations: additional penalties from HPO.
Washington, DC
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