Montgomery County, Maryland Permit Guide
Find Montgomery County, Maryland permit offices, local planning notes, application documents, and inspection questions in one guide.
Individual permit guides for Montgomery County
- Montgomery County Maryland Deck Permit Guide
- Montgomery County Maryland Shed Permit Guide
- Montgomery County Maryland Residential Solar Permit Guide
- Montgomery County, Maryland ADU and Garage Conversion Permit Guide
- Montgomery County, Maryland Pool Spa and Barrier Permit Guide
- Montgomery County, Maryland Roof Window and Exterior Permit Guide
- Montgomery County, Maryland Kitchen Bath and Basement Remodel Permit Guide
- Montgomery County, Maryland Solar EV Charger and Generator Permit Guide
- Montgomery County, Maryland Driveway Fence Shed and Site Permit Guide
- Montgomery County, Maryland Addition Deck Porch and Patio Cover Permit Guide
- Montgomery County, Maryland Electrical Panel Circuit and Rewiring Permit Guide
- Montgomery County, Maryland Plumbing Water Heater Repipe and Sewer Permit Guide
- Montgomery County, Maryland HVAC Heat Pump Gas and Ventilation Permit Guide
- Montgomery County, Maryland Foundation Retaining Wall Grading and Drainage Permit Guide
- Montgomery County, Maryland Demolition Structural Wall Fireplace and Chimney Permit Guide
Start with jurisdiction and project scope
Before applying in Montgomery County, confirm whether the property is within city limits or in unincorporated county territory. Describe the complete work to the office serving that parcel, including electrical, plumbing, structural, and site changes. Building, zoning, utility, and private HOA approvals can be separate.
Open the local official sources or prepare a project checklist.
Source availability audit: . This checks links, not every local rule. These compiled notes are starting points; confirm current dimensions, exemptions, fees, and adopted codes with the cited offices.
Deck Permits
Montgomery County requires a building permit for all decks regardless of height above grade, with added electrical permit review for deck lighting, hot tubs, and spas.
Permit and scope questions
DPS states that all decks require a building permit regardless of height, and decks with stairway illumination, hot tubs, or spas may also require an electrical permit.
Zoning and placement
Properties with individual well and septic systems have additional requirements, so location and utility details should be checked before finalizing the deck plan.
Building and trade review
Montgomery County Residential Deck Details may substitute for construction plans for eligible single-span, single-level decks without roofs, screened porches, hot tubs, or other additional loads.
Discuss your project early when: Call before applying if the deck includes a roof, screened porch, hot tub, spa, stair lighting, unusual loads, well or septic constraints, or work near easements.
Sources for this topic:
Shed Permits
Montgomery County requires a building permit and zoning review before installing, moving, or constructing any shed, with structural review depending on shed size and design.
Permit and scope questions
A building permit is required before constructing or placing any shed in Montgomery County, and zoning review for the shed location is required.
Zoning and placement
The application must include a site plan showing the proposed shed location, and well or septic properties have additional requirements.
Building and trade review
Before finalizing plans, confirm with Montgomery County's building office the current area limit and the method used to measure it and how structure use, attachment and utilities affect any accessory-building exemption. Use the current application instructions for the actual project scope.
Discuss your project early when: Contact Montgomery County before ordering materials or starting work to resolve the current area limit and the method used to measure it; how structure use, attachment and utilities affect any accessory-building exemption; and the setbacks, easements and public-space constraints for the parcel. Bring the proposed dimensions, location and scope so the answer is tied to the project.
Sources for this topic:
Solar Permits
Montgomery County residential solar projects generally require both a building permit for panel attachment and an electrical permit for connection to the home's electrical service.
Permit and scope questions
DPS explains that residential photovoltaic systems require two permits: a building permit for the attachment of solar panels and an electrical permit for the connection to the home's electrical service.
Zoning and placement
Ground-mounted solar can be treated as a residential accessory structure, and properties with individual well and septic systems can have additional requirements.
Building and trade review
Rooftop solar projects must be applied for electronically, and qualified projects may use the county's eSolar process.
Discuss your project early when: Call before applying if the project is ground-mounted, on a townhouse four stories or taller, paired with a service upgrade, or located on a well or septic property.
Sources for this topic:
Prepare a complete application conversation
- Site plan
- Deck dimensions
- Construction plans or approved deck details
- Well and septic information if applicable
- Electrical scope if applicable
- Shed dimensions
- Construction plans when required
- Anchorage details
- Solar layout
- Roof attachment details
- Electrical one-line or equipment details
- Site plan for ground-mounted systems
Bring enough detail for staff to identify the correct application. Ask which plans need dimensions or a professional seal, how files should be named, and whether other departments must approve the proposal first.
Inspection planning
- Apply electronically
- Submit plans through ePlans
- Complete permit plan review
- Schedule footing and framing inspections
- Schedule final inspection
- Apply before placement
- Complete zoning review
- Submit structural plans when required
- Install according to approved location
- Schedule final inspection for location and anchorage
- Use eSolar when eligible
- Coordinate building and electrical permits
- Complete required inspections
- Keep final approval with home records
Questions to resolve before work starts
- Which building, zoning, trade, utility, or public-works approvals apply to this exact scope?
- Is an apparent exemption limited to the building permit, while zoning or trade approval still applies?
- Which current fee schedule, code edition, and local amendments will be used?
- Who may apply, and which licensed trades must perform or supervise the work?
- Which inspection stages cannot be covered, and how is the final approval recorded?
Official source directory
- Montgomery County Residential Decks Permit Process
- Montgomery County Residential Permits
- Montgomery County DPS Permit Page
- Montgomery County Residential Sheds Permit Process
- Montgomery County DPS Residential Sheds
- Montgomery County Residential Solar Permit Process
If an official link is unavailable or redirects to a general page, use that government's site search or contact its permit office. Some government sites restrict automated access; that does not establish that a page is missing.