Maryland home permit planning notes
County permitting is often detailed. Stormwater, critical areas, historic districts, electrical licensing, and deck inspections are common issues.
What to verify locally
- Whether your property is inside city limits or unincorporated county territory
- Which office handles zoning approval versus building permits
- Whether trade permits must be pulled by licensed contractors
- Whether HOA, historic, coastal, floodplain, wildfire, or utility approval applies
Local guides in Maryland
Baltimore Residential Permit Guide
Baltimore building permits are required before construction, alteration, repair, rehabilitation, demolition, moving structures, changing use, installing regulated equipment, grading, excavating, or certain historic work.
Baltimore, MarylandBaltimore Fence, Pool Barrier, and Historic Permit Guide
Baltimore fence rules address property-line location, height, written neighbor agreements, pool barriers, historic exterior permits, and grade approval near streets or alleys.
Baltimore, MarylandBaltimore Permit Exempt Work and Stormwater Guide
Baltimore lists ordinary repairs and some one- and two-family work as permit-exempt, but stormwater, grading, historic, zoning, and code limits can still control the project.
Montgomery County, MarylandMontgomery County Maryland Deck Permit Guide
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.
Montgomery County, MarylandMontgomery County Maryland Shed Permit Guide
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.
Montgomery County, MarylandMontgomery County Maryland Residential Solar Permit Guide
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.
Howard County, MarylandHoward County Maryland Deck and Shed Permit Guide
Howard County requires permits for most decks and larger sheds, with clear inspection expectations for deck footings, final deck details, and shed size thresholds.
Howard County, MarylandHoward County Maryland EV Charger, Driveway, and Trade Permit Guide
Howard County residential EV chargers usually start with an electrical permit, while driveway footprint changes need a driveway permit and trade permits are handled through county licensing and permit offices.
Baltimore, MarylandBaltimore ADU and Garage Conversion Permit Guide
Baltimore homeowners planning an accessory dwelling unit, garage apartment, basement apartment, or converted living space should confirm zoning, occupancy, utility, parking, and building-permit requirements before design work goes too far.
Baltimore, MarylandBaltimore Pool Spa and Barrier Permit Guide
Baltimore pool and spa projects should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.
Baltimore, MarylandBaltimore Roof Window and Exterior Permit Guide
Baltimore roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work should be checked for permit, historic, energy, wind, and inspection requirements.
Baltimore, MarylandBaltimore Kitchen Bath and Basement Remodel Permit Guide
Baltimore remodels should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.
Baltimore, MarylandBaltimore Solar EV Charger and Generator Permit Guide
Baltimore homeowners planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.
Baltimore, MarylandBaltimore Driveway Fence Shed and Site Permit Guide
Baltimore homeowners should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.
Projects to check first
| Project | Why it matters |
|---|---|
| Shed Permit | Usually required once the shed exceeds a local size threshold, has a permanent foundation, includes utilities, or violates zoning setbacks. |
| Fence Permit | Often required for tall fences, front-yard fences, corner lots, pool barriers, retaining-wall combinations, and historic districts. |
| Deck Permit | Almost always required for attached decks, elevated decks, structural repairs, and decks with stairs or guards. |
| EV Charger Permit | Usually required for Level 2 hardwired chargers, panel upgrades, new circuits, and garage wiring changes. |
| Solar Permit | Almost always required. Solar normally needs building/electrical permits and separate utility interconnection approval. |
| Bathroom Remodel Permit | Often required when plumbing, electrical, framing, ventilation, or waterproofing systems are changed. |
| HVAC Replacement Permit | Usually required for furnace, condenser, heat pump, major duct, gas line, and equipment-location changes. |
| Basement Finishing Permit | Usually required when unfinished space becomes habitable, especially with bedrooms, bathrooms, or new walls. |
Best first call
Start with the city building department if the property is inside city limits. If not, call the county building or planning office and ask which authority has jurisdiction for zoning, building, and trade inspections.