Delaware

Delaware home permit planning notes

County and municipal review can overlap. Coastal zones, floodplain, septic, manufactured structures, and HOA rules deserve early checks.

What to verify locally

Local guides in Delaware

New Castle County, Delaware

New Castle County Delaware Residential Permit Guide

New Castle County homeowners should check eServices, Land Use, and building inspections before starting new construction, alterations, interior or exterior improvements, repairs, demolition, utility work, or site changes.

New Castle County, Delaware

New Castle County Delaware Deck and Inspection Guide

New Castle County deck, pool, footing, foundation, grading, framing, weather barrier, and final inspection projects should be planned around the county inspection checklist system.

Kent County, Delaware

Kent County Delaware Building Permit Guide

Kent County homeowners should check MyGovernmentOnline, adopted code guidance, floodplain rules, plot plan requirements, and municipal approvals before starting construction, additions, demolition, or renovation.

Kent County, Delaware

Kent County Delaware Deck Shed and Pool Permit Guide

Kent County decks, sheds, accessory structures, pools, finished basements, solar panels, retaining walls, and floodplain projects should be checked against the county permitting requirement list.

Sussex County, Delaware

Sussex County Delaware Building Permit Guide

Sussex County homeowners should check the Building Permit Office, Building Code Office, sediment and stormwater requirements, and county inspection process before construction, additions, remodeling, or alterations.

Sussex County, Delaware

Sussex County Delaware Inspection and Flood Zone Guide

Sussex County homeowners should plan inspections around approved plans, third-party reports, final zoning, septic, DelDOT, grading, energy, and flood-zone documents before work is covered or occupied.

Dover, Delaware

Dover Delaware Planning and Inspections Permit Guide

Dover homeowners should check Planning and Inspections before new construction, demolition, renovation, roofing, siding, solar panels, fences, pools, sheds, plumbing, heating, public occupancy, or zoning verification.

Dover, Delaware

Dover Delaware Residential Inspection and Occupancy Guide

Dover residential projects should be planned around building, electric, plumbing, mechanical, planning, zoning, utilities, fire, and certificate-of-occupancy steps before the work is considered complete.

Newark, Delaware

Newark Delaware Building Permit Guide

Newark homeowners should check Code Enforcement before building, installing, repairing, replacing, renovating, changing use, converting space, or adding trade systems.

Newark, Delaware

Newark Delaware Fence Shed and Conversion Permit Guide

Newark fences, sheds, pools, driveways, deck covers, HVAC systems, water heaters, electrical changes, and basement or garage conversions should be checked before work starts.

Wilmington, Delaware

Wilmington Delaware Construction and Development Permit Guide

Wilmington homeowners should check construction and development review before new structures, changes to existing structures, demolition, repairs, electrical, plumbing, mechanical, zoning, public works, or fire review.

Wilmington, Delaware

Wilmington Delaware Historic Exterior and Public Works Permit Guide

Wilmington exterior work, fences, windows, doors, demolition, historic district changes, public-way impacts, sewer, stormwater, water, and street closure items should be checked before filing a basic building permit.

New Castle County, Delaware

New Castle County, Delaware ADU and Garage Conversion Permit Guide

Homeowners in New Castle County, Delaware, 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.

New Castle County, Delaware

New Castle County, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in New Castle County, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

New Castle County, Delaware

New Castle County, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in New Castle County, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

New Castle County, Delaware

New Castle County, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in New Castle County, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

New Castle County, Delaware

New Castle County, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in New Castle County, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

New Castle County, Delaware

New Castle County, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in New Castle County, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

New Castle County, Delaware

New Castle County, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in New Castle County, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

New Castle County, Delaware

New Castle County, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in New Castle County, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

New Castle County, Delaware

New Castle County, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in New Castle County, Delaware, should be checked for plumbing permits and inspection hold points.

New Castle County, Delaware

New Castle County, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in New Castle County, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

New Castle County, Delaware

New Castle County, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in New Castle County, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

New Castle County, Delaware

New Castle County, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in New Castle County, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Kent County, Delaware

Kent County, Delaware ADU and Garage Conversion Permit Guide

Homeowners in Kent County, Delaware, 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.

Kent County, Delaware

Kent County, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in Kent County, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

Kent County, Delaware

Kent County, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in Kent County, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

Kent County, Delaware

Kent County, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in Kent County, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

Kent County, Delaware

Kent County, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in Kent County, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

Kent County, Delaware

Kent County, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in Kent County, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

Kent County, Delaware

Kent County, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in Kent County, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

Kent County, Delaware

Kent County, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in Kent County, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

Kent County, Delaware

Kent County, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in Kent County, Delaware, should be checked for plumbing permits and inspection hold points.

Kent County, Delaware

Kent County, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in Kent County, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

Kent County, Delaware

Kent County, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in Kent County, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

Kent County, Delaware

Kent County, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in Kent County, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Sussex County, Delaware

Sussex County, Delaware ADU and Garage Conversion Permit Guide

Homeowners in Sussex County, Delaware, 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.

Sussex County, Delaware

Sussex County, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in Sussex County, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

Sussex County, Delaware

Sussex County, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in Sussex County, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

Sussex County, Delaware

Sussex County, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in Sussex County, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

Sussex County, Delaware

Sussex County, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in Sussex County, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

Sussex County, Delaware

Sussex County, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in Sussex County, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

Sussex County, Delaware

Sussex County, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in Sussex County, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

Sussex County, Delaware

Sussex County, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in Sussex County, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

Sussex County, Delaware

Sussex County, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in Sussex County, Delaware, should be checked for plumbing permits and inspection hold points.

Sussex County, Delaware

Sussex County, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in Sussex County, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

Sussex County, Delaware

Sussex County, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in Sussex County, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

Sussex County, Delaware

Sussex County, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in Sussex County, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Dover, Delaware

Dover, Delaware ADU and Garage Conversion Permit Guide

Homeowners in Dover, Delaware, 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.

Dover, Delaware

Dover, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in Dover, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

Dover, Delaware

Dover, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in Dover, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

Dover, Delaware

Dover, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in Dover, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

Dover, Delaware

Dover, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in Dover, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

Dover, Delaware

Dover, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in Dover, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

Dover, Delaware

Dover, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in Dover, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

Dover, Delaware

Dover, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in Dover, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

Dover, Delaware

Dover, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in Dover, Delaware, should be checked for plumbing permits and inspection hold points.

Dover, Delaware

Dover, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in Dover, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

Dover, Delaware

Dover, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in Dover, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

Dover, Delaware

Dover, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in Dover, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Newark, Delaware

Newark, Delaware ADU and Garage Conversion Permit Guide

Homeowners in Newark, Delaware, 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.

Newark, Delaware

Newark, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in Newark, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

Newark, Delaware

Newark, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in Newark, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

Newark, Delaware

Newark, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in Newark, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

Newark, Delaware

Newark, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in Newark, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

Newark, Delaware

Newark, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in Newark, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

Newark, Delaware

Newark, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in Newark, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

Newark, Delaware

Newark, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in Newark, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

Newark, Delaware

Newark, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in Newark, Delaware, should be checked for plumbing permits and inspection hold points.

Newark, Delaware

Newark, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in Newark, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

Newark, Delaware

Newark, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in Newark, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

Newark, Delaware

Newark, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in Newark, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Wilmington, Delaware

Wilmington, Delaware ADU and Garage Conversion Permit Guide

Homeowners in Wilmington, Delaware, 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.

Wilmington, Delaware

Wilmington, Delaware Pool Spa and Barrier Permit Guide

Pool and spa projects in Wilmington, Delaware, should be checked for building permits, zoning setbacks, electrical bonding, drainage, alarms, gates, and barrier inspections before excavation or delivery.

Wilmington, Delaware

Wilmington, Delaware Roof Window and Exterior Permit Guide

Roof replacement, window replacement, siding, exterior doors, structural repairs, and weatherproofing work in Wilmington, Delaware, should be checked for permit, historic, energy, wind, and inspection requirements.

Wilmington, Delaware

Wilmington, Delaware Kitchen Bath and Basement Remodel Permit Guide

Remodels in Wilmington, Delaware, should be checked for building, electrical, plumbing, mechanical, insulation, egress, waterproofing, and final inspection requirements before walls are closed.

Wilmington, Delaware

Wilmington, Delaware Solar EV Charger and Generator Permit Guide

Homeowners in Wilmington, Delaware, planning solar panels, battery storage, EV chargers, panel upgrades, or standby generators should coordinate electrical permits, utility requirements, equipment placement, and inspections.

Wilmington, Delaware

Wilmington, Delaware Driveway Fence Shed and Site Permit Guide

Homeowners in Wilmington, Delaware, should check zoning, right-of-way, drainage, easements, setbacks, fence height, accessory structures, and inspections before building outside the house footprint.

Wilmington, Delaware

Wilmington, Delaware Addition Deck Porch and Patio Cover Permit Guide

Additions, decks, porches, balconies, and patio covers in Wilmington, Delaware, should be checked for zoning placement, structural plans, footings, ledger connections, stairs, guards, roof loads, and staged inspections.

Wilmington, Delaware

Wilmington, Delaware Electrical Panel Circuit and Rewiring Permit Guide

Panel replacements, service upgrades, new circuits, whole-home rewiring, subpanels, outlets, lighting, and dedicated appliance wiring in Wilmington, Delaware, should be coordinated with electrical permits, utility requirements, and inspections.

Wilmington, Delaware

Wilmington, Delaware Plumbing Water Heater Repipe and Sewer Permit Guide

Water heaters, repipes, fixture relocations, drain and vent changes, sewer laterals, backflow devices, and gas or water service work in Wilmington, Delaware, should be checked for plumbing permits and inspection hold points.

Wilmington, Delaware

Wilmington, Delaware HVAC Heat Pump Gas and Ventilation Permit Guide

Furnaces, heat pumps, air conditioners, mini-splits, ductwork, gas piping, range hoods, bath fans, and other ventilation work in Wilmington, Delaware, should be checked for mechanical, electrical, plumbing, and fuel-gas permits.

Wilmington, Delaware

Wilmington, Delaware Foundation Retaining Wall Grading and Drainage Permit Guide

Foundation repairs, retaining walls, excavation, fill, waterproofing, grading, drainage systems, and slope work in Wilmington, Delaware, should be checked for structural, zoning, stormwater, floodplain, and site inspections.

Wilmington, Delaware

Wilmington, Delaware Demolition Structural Wall Fireplace and Chimney Permit Guide

Interior demolition, load-bearing wall changes, chimney or fireplace work, structural openings, and full-structure removal in Wilmington, Delaware, should be checked for building, trade, utility, environmental, and inspection requirements.

Projects to check first

ProjectWhy it matters
Shed PermitUsually required once the shed exceeds a local size threshold, has a permanent foundation, includes utilities, or violates zoning setbacks.
Fence PermitOften required for tall fences, front-yard fences, corner lots, pool barriers, retaining-wall combinations, and historic districts.
Deck PermitAlmost always required for attached decks, elevated decks, structural repairs, and decks with stairs or guards.
EV Charger PermitUsually required for Level 2 hardwired chargers, panel upgrades, new circuits, and garage wiring changes.
Solar PermitAlmost always required. Solar normally needs building/electrical permits and separate utility interconnection approval.
Bathroom Remodel PermitOften required when plumbing, electrical, framing, ventilation, or waterproofing systems are changed.
HVAC Replacement PermitUsually required for furnace, condenser, heat pump, major duct, gas line, and equipment-location changes.
Basement Finishing PermitUsually 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.