Delaware Garage Permit Guide
In Delaware a garage permit runs through your county — unless you’re inside town limits. Here’s what New Castle, Kent and Sussex require, plus the towns in between, before you build.
Updated for 2025–2026 · Permits issued by county or town
In This Guide
We handle permits so you don't have to.
White Pine Structures is a specialty builder of detached buildings — garages included. We help navigate your township's permit process. It starts with a $25 permit review — we find out what your township requires, prepare the documents (including your site plan), and hand everything to you to submit under your own name. Approval isn't guaranteed, but the $25 is applied to your purchase when you move forward.
Building larger or double-wide? This part matters.
For simple, smaller buildings we handle the whole permit process for you. But for larger or double-wide structures — anything 16 ft wide and up — approval takes more legwork, and the single biggest thing that gets these across the finish line is you being willing to go to the township and talk with them personally. We prepare everything and coach you on exactly what to say, but a local homeowner advocating for their own project moves the needle in a way we simply can’t do remotely.
What a township prints on its paperwork doesn’t always reflect what they’ll actually approve in person — which is exactly why your involvement makes the difference on bigger builds. Think of it as a team effort: we do the heavy lifting, and your willingness to show up is often what gets a larger structure approved.
Every permit review is a flat $25 — big build or small — and it credits straight to your build when you move forward. Two honest heads-ups on larger builds: your township charges its own permit fee on top, and if they require sealed (engineer-stamped) drawings, those are prepared by an outside engineer at an additional cost. We’ll tell you exactly what your township needs before anything is spent.
How Garage Permits Work in Delaware
Delaware has no statewide residential building permit — a detached garage is permitted by your county (New Castle, Kent or Sussex) unless your address is inside an incorporated town, in which case the town handles it. Either way, plan on a building permit for the structure, zoning approval for placement, and a separate electrical permit.
The single most important step in Delaware is figuring out whether your address is inside town limits or in the county — that decides which office you file with.
Important Caveat
Confirm first whether your property is inside an incorporated town or in unincorporated county land — that determines who issues your garage permit. When in doubt, call the county land-use office.
A detached garage almost always triggers a permit because it:
- Sits on a concrete slab or frost footers (a permanent foundation)
- Is larger than the small-shed size thresholds
- Usually includes electrical — which needs its own trade permit
- Is designed for vehicles, not just storage
Garage Permits by Town
Here’s the short answer for the Delaware towns across our delivery area:
Do I Need a Permit to Build a Garage in Wilmington, DE?
New Castle County
Yes. Inside the City of Wilmington a detached garage needs a building permit and zoning approval through the Department of Licenses & Inspections. Outside city limits the permit runs through New Castle County. Confirm which applies to your address.
Do I Need a Permit to Build a Garage in Newark, DE?
New Castle County
Yes. In Newark a detached garage needs a city building permit and zoning approval; just outside the city the permit is handled by New Castle County Land Use. Confirm your jurisdiction first.
Do I Need a Permit to Build a Garage in Middletown, DE?
New Castle County
Yes. The Town of Middletown requires a building permit and zoning approval for a detached garage; addresses outside town limits go through New Castle County Land Use. Confirm setbacks and fees with the correct office.
Do I Need a Permit to Build a Garage in Dover, DE?
Kent County
Yes. Inside the City of Dover a detached garage needs a building permit and zoning approval through the city; outside the city it runs through Kent County. Electric is permitted separately. Confirm which applies to you.
Do I Need a Permit to Build a Garage in Smyrna, DE?
Kent County
Yes. The Town of Smyrna requires a building permit and zoning approval for a detached garage; properties outside town limits go through Kent County. Confirm requirements with the correct office.
Do I Need a Permit to Build a Garage in Seaford, DE?
Sussex County
Yes. Inside Seaford a detached garage needs a city building permit and zoning approval; outside the city it goes through Sussex County. Confirm setbacks and fees before ordering.
Do I Need a Permit to Build a Garage in Georgetown, DE?
Sussex County
Yes. The Town of Georgetown requires a building permit and zoning approval for a detached garage; addresses outside town limits are handled by Sussex County. Confirm which applies to your parcel.
Don't see your area? Call your local zoning office — or contact us and we'll help you figure it out.
Zoning Permit vs. Building Permit
For a garage you typically need both. They're two separate approvals:
🏗️ Building Permit
Ensures the structure meets construction codes (foundation, framing, snow load).
- Almost always required for a garage
- Requires plans/drawings
- Covers the slab or footers
- Inspections during & after construction
📋 Zoning Permit
Ensures placement complies with local land-use rules (where it goes, how big, how tall).
- Required in addition to the building permit
- Covers setbacks from property lines
- Checks lot coverage & height limits
- Front-yard placement is usually prohibited
Bottom line: For a detached garage, expect to pull a building permit and a zoning permit, plus a separate electrical permit if you're wiring it. Ask your office about all three up front.
Typical Setback Requirements
Setbacks are the minimum distances between your garage and property lines, your house, and easements. They're set by your local zoning code — and because a garage has a bigger footprint, lot-coverage limits matter more than they do for a small shed.
Common Setback Ranges
Side yard: 5–10 feet
From side property line
Rear yard: 5–15 feet
From rear property line
From house: 6–10 feet
Fire separation requirement
From road/ROW: 15–30 feet
Front placement usually prohibited
These are common ranges, not your town's actual numbers. Always confirm with your local zoning office.
The Permit Process
Contact your local zoning office
Call your township, borough, or county office and ask specifically about a detached garage — building permit, zoning permit, and whether they want engineered plans.
Prepare a site plan
A sketch showing property lines, existing structures, the proposed garage location, and distances to property lines. We can help with this during your consultation.
Submit your applications
File the zoning and building permit applications together. Many offices now accept online submissions.
Pay the permit fees
Garage permit fees are higher than a shed’s because of the building permit and inspections. Your office will quote the exact amount.
Wait for approval
Building permits for a garage commonly take 2–6 weeks depending on the municipality and whether plan review is required.
Schedule delivery & inspections
Once approved, schedule delivery/build. Garages usually require inspections — often a footing/slab inspection and a final.
How We Can Help
Garages take more paperwork than sheds, and that's exactly where we help. We deliver across Delaware and have worked with dozens of permitting offices. Here's how:
- We tell you whether your office typically requires engineered plans for a garage
- We provide township-ready, engineered plan sets for garages
- Our structures meet local snow-load requirements
- We help with site-plan measurements during your consultation
Garage Permit Guides by State
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