Building Department in Montgomery County, MD

Find The Office You Need

• Rockville City Zoning

  111 Maryland Avenue, Rockville, MD 20850

  240-314-8220
• Montgomery County Permits

  255 Rockville Pike, Rockville, MD 20850

  240-777-6300
• Rockville Permits

  111 Maryland Ave, Rockville, MD 20850

  240-314-8240
• Gaithersburg Planning Department

  31 South Summit Avenue, Gaithersburg, MD 20877

  301-258-6330
• Maryland Planning Department

  14211 Quince Orchard Road, North Potomac, MD 20878

  301-208-0200