Skip to main content

 Commercial Additions

When is a Building Permit Required?

A building permit is required for all additions in Montgomery County and municipalities, with the exceptions of the City of Rockville and the City of Gaithersburg.

What is the Permit Process?

For all additions:

  • Submission of a completed Sediment Control application to DPS' Land Development Division
  • Submission of a Right of Way application to DPS' Land Development Division
  • Submission of a Commercial/Residential Building application
  • Two complete sets of construction drawings (engineer/architect signed/sealed with certification and title block)
  • Submission of a completed Use and Occupancy application including one site plan
  • Four site plans (five site plans if the lot has a well and/or septic system)
  • Two completed Energy Worksheets (IECC 2009)

Certification of modified drawings. (Click here)

Plan submittal changes which result from the suspension of a plan review must include a "Certification Of Modified Drawings". The design professional(s) responsible for the design of the project shall review all the changes from each of the disciplines and certify that the resubmitted design documents prepared under their license did, or did not, require modification as a result of any changes made.

Other Agencies Involved

Approvals may be required from the following agencies:

  • SHA (State Highway Administration)
  • Maryland-National Capital Park & Planning Commission
  • WSSC (Washington Suburban Sanitary Commission)
  • Department of Health and Human Services
  • Townships

Inspections Information

Inspection requirements are attached to the approved set of plans. Inspection requests received before 12:00 noon are scheduled for the next business day (Monday – Friday). Inspection requests received after 12:00 noon are scheduled within two business days (Monday – Friday).

What will the Permit Cost?

Permit fees are assessed in accordance with Executive Regulation 11-12, Schedule of Fees for Permits, Licenses, and Certifications -Method 2, Department of Permitting Services. A 5% Automation Enhancement Fee will be added to the above cost.

Permit Duration:

The permit is valid for one (1) year from the date of issue. An extension may be applied for prior to permit expiration. For further information, contact 311 in Montgomery County or (240) 777-0311 outside of Montgomery County.

Notice to Sprinkler and Building Contractors:

Be advised, all fuel-fired equipment located in attics/concealed spaces of all residential occupancies in buildings up to four stories in height and one-and-two-family dwellings starting with building permit numbers (COMBUILD) #660755, (COMFAST) #600668, (BUILDING RESIDENTIAL) #600659 or greater must be protected with sprinklers. This requirement is in accordance with NFPA 13R, 2007 Sec. 6.9.6 and NFPA 13D, 2007 Sec. 8.6.5.

Application Package
Application Application for Commercial Building Permit
Use and Occupancy Application Application for Use and and Occupancy Permit
ADA Accessibility Compliance Form Accessibility Compliance Form
Sediment Control Application Application for Sediment Control Permit
Right of Way Application Application for Work in the Public Right of Way Permit 
Maryland Roadside Tree Affidavit Affidavit for Residential/Commercial Building
Fees and Taxes
Fees Current Commercial Fee Schedule
Automation Fee Automation Enhancement Fee
Credit Card Authorization Form Credit Card Authorization Form
System Development Charge (SDC) Exemption Brochure  SDC Exemption Brochure
System Development Charge (SDC) Exemption Application  SDC Exemption Application
Bonds No Bonds Needed Unless Demolition, Sediment Control or Construction in or of Right of Way is Occuring.
Codes, Standards, Executive Regulations
Montgomery County Code Montgomery County Code
  Commercial Energy Code
Guidelines, Checklists, Memorandum of Understandings, Interpretations
Minimum Data for Submittal of Commercial Plans Minimum Data for Submittal of Commercial Plans
ADA Excerpts-Referenced in Maryland Accessibility Code Americans With Disabilities Act Title III Section 36
Submittal Guidelines Guidelines for Submittal for Commercial Non-Fast Track Permits
Commercial Canopies Checklist Commercial Canopies and Awnings Checklist
Commercial Dumpster Checklist Commercial Dumpster Enclosures Checklist
Retaining Walls Checklist Commercial Retaining Walls Checklist
Commercial Trailer Commercial Trailer or Modular Unit Checklist
Green Buidlings Guidelines for Commercial Green Buildings
Titleblock Requirements for Plan Submittal Titleblock Requirements
Green Building Regulation ER19-07AM
Construction Documents Required for Support of Excavation Permit Applications (Sheeting, Shoring, and Underpinning) Construction Documents Required for Support of Excavation Permit Applications (Sheeting, Shoring, and Underpinning)
Inspection Requirements
  Commercial Inspections
  Commercial Electrical Inspections
  Commercial Mechanical Inspections
Frequently Asked Questions
311 Web Portal: Enter key word "Commercial Building"
Online Permitting Status Information and Inspections
Online Data Search Search DPS
Call for More Information
In Montgomery County 311
Outside of Montgomery County 240-777-0311
Other Agencies to Contact
Other Agencies and Utilities to Contact Allegheny Power
  American Institute of Architects (AIA)
  American National Standards Institute (ANSI)
  American Society of Heating, Refrigerating & Air Conditioning Engineers (ASHRAE)
  Baltimore Gas & Electric Co. (BG&E)
  Board of Appeals
  Historical Preservation
  International Code Council (ICC)
  Maryland Department of Assessments and Taxation
  Maryland Department of the Environment
  Maryland Division of State Documents
  Masonry Institute of America (MIA)
  Miss Utility
  National Glass Association (NGA)
  MNCPPC: Historic Area Work Permits
  MNCPPC: MC Atlas
  MNCPPC: Zoning
  National Fire Protection Association (NFPA)
  Potomac Electric Power Company (PEPCO)
  U.S. Department of Energy (DOE) by Pacific Northwest National Laboratory (PNNL)
  Washington Gas Light Co.