Shed Permit in New Castle County, Delaware
It depends
Sometimes, depending on the project
Sheds over 200 sq ft, taller than the eave or overall height limits, or able to store a motor vehicle.
Issued byNew Castle County Department of Land Use
By Mario Bailey, verified against official sources
Quick answer
A one-story detached shed, playhouse, pergola or gazebo for a one- or two-family dwelling is exempt if its floor area does not exceed 200 sq ft, its eave height is 10 feet or less and its overall height is 20 feet or less. Garages and structures capable of storing motor vehicles never qualify. Exempt sheds must still meet zoning setbacks (minimum 3 feet from rear and rear-side lot lines).
Typical threshold: Floor area of a one-story detached accessory structure with an eave height of 10 feet or less and overall height of 20 feet or less; garages never qualify.
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When a permit is usually needed
Sheds over 200 sq ft, taller than the eave or overall height limits, or able to store a motor vehicle.
What a shed permit costs in New Castle County
How New Castle County compares in Delaware
Closest shed permit thresholds outside Delaware
Jurisdictions we cover whose limit sits nearest New Castle County's 200 sq ft.
- Austin, Texas, one-story detached accessory structures used as tool or storage sheds with floor area no greater than 200 sq ft and no more than 15 ft in height and no plumbing and not in a floodplain are exempt
- Baton Rouge, Louisiana, floor area of a detached accessory structure
- Bellevue, Washington, detached storage sheds playhouses or gazebos with a floor area of 200 square feet or less do not require a building permit; structures over 200 square feet require a permit
- Boise, Idaho, floor area of a one-story detached accessory structure
How to apply in New Castle County
In New Castle County, a residential shed permit application, once the shed is large enough to require one, is a set of construction documents that show what will be built and prove it meets the adopted residential code. In practice that means a written permit application, a scaled site plan locating the shed and its distances to the property lines, and construction documents covering the shed's foundation or anchoring system and its framing.
What most shed permit applications include:
- For New Castle County, a written permit application identifying the proposed work and describing the property by its address or legal description, filed with the building department before construction begins (IRC R105.3).
- For New Castle County, a scaled site plan showing the shed's size and location and its dimensioned distances to all property lines so required setbacks can be verified before the permit is issued (IRC R106.2).
- Construction documents showing the shed's foundation: freestanding accessory structures at or under the code's small-structure size and eave-height limits (600 square feet and a 10 foot eave height in the model code) are exempt from continuous footings but must still be shown supported on undisturbed soil or engineered fill and anchored to resist wind-induced uplift and overturning (IRC R403.1).
- Where the shed does sit on a continuous foundation with a wood sill plate, anchor bolt or approved strap details tying the sill plate to the foundation (IRC R403.1.6).
- Roof framing details showing the rafter-to-wall or truss-to-wall connections, since even a shed exempt from continuous footings must be anchored to resist wind-induced uplift and overturning (IRC R403.1; R802.11).
General submittal guidance from IRC R105.3 (permit application), R106.2 (site plan), R403.1 (footings and anchorage for accessory structures), and R403.1.6 (sill anchorage), 2021 IRC. Source. New Castle County Department of Land Use sets the exact checklist for New Castle County.
Where to apply in New Castle County:
New Castle County Department of Land Use
- New Castle County Government Center, 87 Reads Way, New Castle, DE 19720
- Phone: 302-395-5400
- Email: permits@newcastlede.gov
Shed Permit in New Castle County compared with nearby Delaware localities
| Locality | Permit needed? | Threshold | What each Delaware schedule says | Verified |
|---|---|---|---|---|
| New Castle County | It depends | Floor area of a one-story detached accessory structure with an eave height of 10 feet or less and overall height of 20 feet or less; garages never qualify | 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)"... | |
| Sussex County | Permit required | Any size | ...County Building Permit Fee Guide: construction value (table rates such as... |
Inspections and closing out your permit
In New Castle County, a permitted shed is inspected in stages as it goes up: the foundation or the anchors that hold it down before they are covered, the framing before it is enclosed, and a final inspection once the shed is finished. Each stage checks the items that would be hidden or unsafe if skipped.
- Foundation or anchor inspection in New Castle County: called after any required footings, piers, or ground anchors are set and any forms or reinforcing steel are in place, but before concrete is placed, so the foundation or anchoring system can be verified before it is covered (IRC R109.1.1).
- Frame inspection in New Castle County: after the shed is framed, sheathed, and braced, the inspector checks the framing, bracing, fasteners, and the roof connections that resist wind uplift, before those elements are covered (IRC R109.1.4 frame inspection; R403.1 anchorage).
- Final inspection in New Castle County: made after the permitted work is complete and before the shed is used; work may not proceed past any inspection stage without the building official's approval (IRC R109.1.6 final inspection; R109.4 approval required).
- In New Castle County: for a pre-fabricated or kit shed, the manufacturer's installation instructions must be on site at the time of inspection so the inspector can confirm the anchoring and assembly match the design (IRC R106.1.2).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the New Castle County permit portal or by phone at 302-395-5400.
Inspection sequence from IRC R109.1.1 (foundation inspection), R109.1.4 (frame inspection), R109.1.6 (final inspection), and R106.1.2 (manufacturer's instructions on site), 2021 IRC. Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Shed Permit checklist for New Castle County
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: Floor area of a one-story detached accessory structure with an eave height of 10 feet or less and overall height of 20 feet or less; garages never qualify. Usually needed: Sheds over 200 sq ft, taller than the eave or overall height limits, or able to store a motor vehicle.
- Budget the fee. Building permit fees per the Deck and Swimming Pool requirement sheets (rev. 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)", Certificate of Occupancy $60, Zoning Permit Fee 10% of Building Permit Fee ($21 minimum, $145 maximum), NCC Volunteer Fire Assistance Fund Fee 0.5% of valuation, and a $65 Floodplain/Wetland review fee where applicable. The Chapter 6 Schedule of Permit and Review Fees (as amended through January 1, 2026) sets the valuation fee at $12.00 per $1,000 up to $1,000,000 with a $60.00 minimum; the $142 figure is the combined minimum the Estimated Building Permit Fee Form states. Official fee schedule.
- Apply. In New Castle County, a residential shed permit application, once the shed is large enough to require one, is a set of construction documents that show what will be built and prove it meets the adopted residential code. In practice that means a written permit application, a scaled site plan locating the shed and its distances to the property lines, and construction documents covering the shed's foundation or anchoring system and its framing. Start at the New Castle County permit portal.
- Keep the office details handy. New Castle County Department of Land Use. Phone: 302-395-5400. Address: New Castle County Government Center, 87 Reads Way, New Castle, DE 19720.
- Plan for inspections. In New Castle County, a permitted shed is inspected in stages as it goes up: the foundation or the anchors that hold it down before they are covered, the framing before it is enclosed, and a final inspection once the shed is finished. Each stage checks the items that would be hidden or unsafe if skipped.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a shed permit in New Castle County?
- A one-story detached shed, playhouse, pergola or gazebo for a one- or two-family dwelling is exempt if its floor area does not exceed 200 sq ft, its eave height is 10 feet or less and its overall height is 20 feet or less. Garages and structures capable of storing motor vehicles never qualify. Exempt sheds must still meet zoning setbacks (minimum 3 feet from rear and rear-side lot lines). Floor area of a one-story detached accessory structure with an eave height of 10 feet or less and overall height of 20 feet or less; garages never qualify. Always confirm with the office before starting.
- How much does a shed permit cost in New Castle County?
- Building permit fees per the Deck and Swimming Pool requirement sheets (rev. 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)", Certificate of Occupancy $60, Zoning Permit Fee 10% of Building Permit Fee ($21 minimum, $145 maximum), NCC Volunteer Fire Assistance Fund Fee 0.5% of valuation, and a $65 Floodplain/Wetland review fee where applicable. The Chapter 6 Schedule of Permit and Review Fees (as amended through January 1, 2026) sets the valuation fee at $12.00 per $1,000 up to $1,000,000 with a $60.00 minimum; the $142 figure is the combined minimum the Estimated Building Permit Fee Form states. See the official fee schedule for current amounts.
- Where do you apply for a shed permit in New Castle County?
- You can apply through the New Castle County permit portal or contact the New Castle County Department of Land Use directly. The links are listed on this page.
- Can a homeowner pull a shed permit themselves in New Castle County?
- Under Delaware law (9 Del. C. 6302(b); 9 Del. C. 4402(b); 24 Del. C. 1417; 24 Del. C. 1807(c)(2); 24 Del. C. 1820(c)(2); 16 Del. C. 7906(c)): Yes. Delaware homeowners may pull permits and do their own work, with trade-specific conditions. Sussex County's statute expressly lets any owner who wants to do their own work on their own building get a permit, and Kent County issues permits in the owner's name. For electrical work, a homeowner wiring their own home that is not for sale or rent must get a homeowner's permit from the Board of Electrical Examiners and pass a final inspection; swimming pools and hot tubs are excluded. Homeowners may do their own plumbing and HVACR work (but not gas piping) in their own home that is not for sale, rent or lease, and for plumbing must file a permit application with the inspection authority. Confirm how New Castle County applies this before you apply.
From the Library
What else needs a permit in New Castle County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Bathroom Remodel Permit | It depends | Finish work (tiling, cabinets, counter tops) and in-place fixture reinstallation are exempt; new or moved plumbing, walls or circuits are not | 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)"... |
| Deck Permit | It depends | Floor area of a free-standing deck no more than 30 inches above grade and not adjacent to or attached to the dwelling | 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)"... |
| Electrical Permit | Permit required | Any size | See schedule |
| EV Charger Permit | Permit required | Any size | See schedule |
| Fence Permit | It depends | Only fences that serve as swimming pool barriers need a permit | Not published |
| HVAC Permit | Permit required | Any size | ...6 Schedule of Permit and Review Fees, as amended through January 1, 2026): $5.25... |
| Patio Permit | It depends | Height of a non-structural slab, patio or decorative hardscaping at any point | Not published |
| Plumbing Permit | Permit required | Any size | ...6 Schedule of Permit and Review Fees, as amended through January 1, 2026): $5.25... |
| Pool Permit | It depends | Pool, spa or hot tub wall height; any pool designed to connect to a circulation system needs a permit regardless of height | 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)"... |
| Roof Replacement Permit | It depends | Share of the roof sheathing repaired or replaced during a re-roof | 11/04/2025): "Building Permit Fee: $12 per $1,000 of Valuation ($142 Minimum)"... |
| Solar Permit | It depends | Rooftop panels on a one- or two-family dwelling are exempt from the County building permit; electrical work still goes through the State | Not published |
| Water Heater Permit | Permit required | Any size | ...6 Schedule of Permit and Review Fees, as amended through January 1, 2026): $5.25... |
Shed Permit in other Delaware localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not New Castle County documents; the office above sets the local rules.
- IRC R105.3 (permit application), R106.2 (site plan), R403.1 (footings and anchorage for accessory structures), and R403.1.6 (sill anchorage), 2021 IRC
- IRC R109.1.1 (foundation inspection), R109.1.4 (frame inspection), R109.1.6 (final inspection), and R106.1.2 (manufacturer's instructions on site), 2021 IRC
How this shed permit page for New Castle County was verified. 2 official sources: newcastlede.gov, newcastlede.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with New Castle County Department of Land Use. Rules change; confirm before you build. How we verify.
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