Building a New Home or Addition

Building a New Home or Addition

Building a New Home or Addition

Your new home requires permits and inspections in order to ensure that it is safe for your enjoyment. We encourage you to review our residential code compliance guidelines.

Note: The location of the new home will need to be approved by the Carroll County Zoning Administration and the Carroll County Health Department to ensure that the proposed structure is a sufficient distance away from property lines, septic systems, water infrastructure, etc. The Bureau of Resource Management may also have some special considerations for the given lot. For help with site selection, please contact:

Carroll County Zoning Administration 410-386-2980
Carroll County Health Department 410-876-1884
Resource Management 410-386-2210

Permits Required

Your new home will require a variety of permits/applications to ensure that it is safe and up to code, , including applications for the building, plumbing, fire and electrical portions of the project. Please gather the construction documentation specified below and submit an owner / contractor affidavit and a building permit/zoning application. After the building permit application is filed, the licensed plumber, electrician and sprinkler contractors can submit their plumbing, electrical and fire applications. A septic permit through the Health Department is also required (New Home Only).

Permit Process

Many factors affect the speed with which your application(s) are approved. For best results, it is critical that you carefully review your application and design documents prior to submission to ensure that all necessary documents are included and that the design is compliant with county code. Normally, permits can be issued within 10-15 business days if the application and construction documents are complete, accurate, and code-compliant.

Construction Document Requirements

Submitted documents must contain sufficient information for the plan reviewer to be able to review the proposed construction.

  • ___ Two (2) plot plans of the entire parcel – drawn to scale – to include:
    • ___ Location of the proposed structure
    • ___ Measurements from the proposed structure to each property line
    • ___ Location of any existing structures
    • ___ Location of existing/proposed driveway(s)
    • ___ Location of and distance from the existing/proposed well and/or septic area
    • ___ Road name
    • ___ Drywell location
    • ___ All Easements (Floodplain, Forest Conservation, and Utilities)
    • ___ Area of disturbance
  • ___ Two (2) complete sets of detailed construction plans – drawn to scale – to include:
    • ___ Footing, foundation, and framing plan
    • ___ Floor plan for each level with all rooms labeled with the proposed use and structural details
    • ___ Cross section (1/4 scale), including all framing details
    • ___ Wall section (1/2 scale)
    • ___ Include wall bracing compliance and details
    • ___ Elevations (front, rear and sides)
    • ___ Square footage total (finished and unfinished area(s))
    • ___ Manufacturer installation instructions (for manufactured mobile home only)
    • ___ Seal indicating plans are state-approved (modular dwelling only)
    • ___ Indicate if existing home is sprinklered (addition permits)
    • ___ A current Residential Energy Compliance Form must be submitted with permit application
    • ___ Home Builder’s License Number (for construction/placement of new dwelling by a licensed contractor)
    • ___ Townhouse drawings shall be designed by a Maryland registered architect and are required to be sealed and signed


Your new home or addition will require a series of inspections throughout the building process. At a minimum, your project will require the following:

Building Inspections

  • Footing
  • Foundation
  • Draintile
  • Slab
  • Framing
  • Insulation
  • Final

Electrical Inspections

  • Rough-in
  • Service
  • Final

Plumbing Inspections

  • Ground work
  • Rough-in
  • Final

Fire Inspections

  • Rough-in
  • Hydro
  • Sprinkler Completion
  • Final

Scheduling an Inspection


Please see Row A of the building permit fee schedule , Row A of the electrical permit fee schedule, Row A of the fire permit fee schedule and Row A of the plumbing permit fee schedule.

Impact fees are separate from permit fees and are meant to offset the burden that new development creates on schools and parks. The fees are levied on building permit applications and must be paid prior to the issuance of the building permit. Please see our page on impact fees.