What happens if you skip the permit (and you needed one)
- Stop-work orders issued by the City of Conway carry fines of $100–$500 per day of violation; work must cease immediately, and you'll owe permit fees plus penalties before re-starting.
- Insurance claims may be denied if the carrier discovers un-permitted structural work; total loss of claim payout on wind/impact damage can exceed $50,000–$300,000 depending on the home value and retrofit scope.
- Resale disclosure requirement: South Carolina requires sellers to disclose material structural defects and unpermitted work; failure to disclose can trigger buyer lawsuits and forced remediation costing $5,000–$20,000.
- Lender and refinance blocks: most mortgage lenders and home-equity lines of credit require proof of permitted, inspected work; un-permitted retrofits can kill loan approval or force appraisal holds.
Conway hurricane retrofit permits—the key details
South Carolina's residential building code is built on the 2021 IBC and IRC; the City of Conway adopted these editions in 2024. For wind-hardening retrofits, the governing sections are IRC R301.2 (wind design criteria), R802.11 (roof-framing connections), R703.7 (water-resistive barriers), and R609 (garage-door design and bracing). Conway's coastal location (Horry County, near the Atlantic) puts it in a high-wind design zone; the standard 3-second gust speed for residential Risk Category II is 115 mph, which means roof-to-wall straps and connections must be engineered to resist substantial uplift. Unlike Florida's HVHZ (High-Velocity Hurricane Zone) overlay, which triggers automatic impact-window and shutter requirements in specific districts, Conway doesn't have a dedicated wind-retrofit overlay—your home must meet the same code as any new construction. This means full architectural plan review, sealed drawings for engineered connections, and sign-off by the City of Conway Building Department's plan reviewer. Expect 2–4 weeks for a straightforward retrofit plan (roof straps, secondary water barrier, impact-rated windows) and 4–6 weeks if major structural modifications or roof decking replacement is involved.
The most common permit requirement is roof-to-wall strap upgrade. IRC R802.11.2 mandates that rafters or trusses be connected to the top plate with minimum 3/8-inch bolts or twisted-wire anchors rated for uplift, spaced at 6 feet on center (or per engineering). If your retrofit replaces or upgrades these connections, a permit is mandatory. The City of Conway requires sealed structural drawings (stamped by a South Carolina licensed engineer, PE) showing rafter/truss layout, connection detail, fastener specs, and pull-out calculations. Many homes built in the 1980s–2000s in Conway use older toe-nails or light brackets; upgrading to modern hurricane ties costs $4,000–$15,000 for a typical 2,000 sq ft home and is a classic retrofit. Secondary water barriers—peel-and-stick synthetic underlayment under shingle starters, or ice-and-water shield—are also permit-triggered if they're part of a larger re-roofing or structural retrofit. A stand-alone secondary-barrier job (no structural work) sometimes slides under the exempt threshold in some jurisdictions, but Conway's building department treats any water-barrier upgrade on a retrofit as part of the overall wind-hardening scope and requires plan review.
Hurricane shutters and impact-rated windows are separate permit lines. IRC R301.2.1.1 references design wind speeds and impact resistance; Conway doesn't adopt Florida's TAS 201 (Miami-Dade impact testing) standard but instead points to ASTM E1996 (impact resistance of windows) and ASTM E1886 (static and dynamic testing). If you're installing hurricane shutters (roll-down, accordion, or storm-panel styles), the permit plan must specify fastener pull-out ratings and connection points to the wall framing. Impact windows must carry a label showing compliance with ASTM E1886/E1996 at the design wind speed (115 mph). Many homeowners buy commercial shutters or windows without proof of testing; the City of Conway will require manufacturer certification and a cut-sheet in the permit package. Expect an additional $150–$300 permit fee for shutter or impact-window specs on top of the base retrofit permit.
Garage-door bracing is another common retrofit. IRC R609.1 requires garage doors in high-wind areas to be designed for the design wind speed or braced to resist lateral load. A simple fixed brace kit (typical cost $200–$600) must still be engineered and permitted if it's part of a retrofit package. The City of Conway requires sealed drawings showing brace connection to the door frame and wall studs, along with proof that the bracing is rated for 115 mph load (roughly 25–30 lb/sq ft lateral pressure). A stand-alone garage-door brace retrofit sometimes triggers only a simple inspection permit (lower fee, ~$75–$150) rather than a full plan-review permit, but verify with the building department upfront.
The permit process in Conway is straightforward but slower than Florida's streamlined tracks. You'll submit your sealed plans (architect- or engineer-stamped), a completed permit application (online or in-person at City Hall), and proof of property ownership. The City of Conway Building Department reviews for code compliance, structural adequacy, and workmanship standards—typically 2–3 weeks. Once approved, you get a permit card, pull a work authorization, and schedule inspections: rough-framing inspection (before wall/ceiling closure) and final inspection (after all work is complete). Each inspection is $50–$150. Total permit cost is $250–$600 plus inspection fees. If you're hoping to claim an insurance discount for your retrofit, contact your homeowner's insurer before starting work—they'll tell you which improvements qualify and may require a post-retrofit inspection by their own adjuster (cost typically waived or covered by the carrier). South Carolina doesn't issue a state wind-mitigation certificate like Florida's OIR-B1-1802, so the insurance discount depends entirely on your carrier's underwriting rules, not a government form. Retain all permit documents, inspection sign-offs, and manufacturer certifications for your insurer and future resale.
Three Conway wind / hurricane retrofit scenarios
Wind design speed and coastal sandy soil: why Conway retrofits matter
Conway is located on the Atlantic coastal plain of Horry County, South Carolina, with design wind speeds of 110–115 mph (3-second gust, Risk Category II residential per ASCE 7-22, adopted by the 2021 IBC/IRC). The soil is predominantly coastal sandy and tidal pluff mud near the waterfront, with pockets of Piedmont clay inland. Sandy soil has low bearing capacity and poor lateral support; if your home's foundation and anchor bolts aren't robust, high winds can cause rocking and uplift. This is why roof-to-wall connections are so critical in Conway—the wind load must be transmitted down through the roof, walls, and foundation into solid soil, with no weak link. Most homes built before 2000 in Conway lack modern continuous load paths; their foundations rely on perimeter footings and isolated anchor bolts (maybe 10 feet apart), which are insufficient for 115 mph wind. A retrofit addressing only the roof (e.g., new straps) without upgrading foundation anchorage is incomplete and won't satisfy the City of Conway's plan reviewer.
Coastal sandy soil also drains quickly and offers minimal cohesion; pilings or deep footings (3–4 feet below grade, which is below the frost line of 12 inches) are preferred for new construction and major retrofits. If your retrofit involves re-jacking or re-supporting the home, the City of Conway will require geotechnical soil boring and a sealed report from a PE or geotechnical engineer (cost: $1,500–$3,000). The pluff mud near tidal zones is even worse—it's acidic, oxygen-poor, and prone to settlement; any retrofit in a flood-prone area should include a Base Flood Elevation (BFE) check and may trigger FEMA Hazard Mitigation grant opportunities if your home is in a FEMA flood zone.
For the typical upland Conway retrofit (roof straps, windows, shutters), coastal sandy soil isn't usually a deal-breaker. The issue is that sandy soil doesn't provide much lateral (shear) resistance to overturning forces; if the roof load tries to flip the house, the foundation must be strong enough to resist. This is why the City of Conway's plan reviewers pay close attention to continuous band boards (rim boards) and anchor-bolt spacing—they're the lateral-load path into the foundation. An older home with a broken band board or missing rim board won't pass inspection until it's repaired. Sandy soil also compacts over decades; if your home has settled, the inspector will flag it as a potential structural issue before approving the permit.
For homeowners considering a full retrofit, ask the City of Conway Building Department or your engineer about soil conditions at your address. If you're near the coast or in a flood zone, the permit review may include a condition requiring elevation certification or foundation upgrades. This adds time and cost but is non-negotiable in Horry County.
Insurance discounts and the role of permitted, inspected work
Unlike Florida, which has the OIR-B1-1802 wind-mitigation inspection form and a state-coordinated insurance-discount framework, South Carolina has no official statewide wind-mitigation certificate. However, most homeowner's insurers operating in South Carolina (State Farm, Allstate, SCIP, etc.) do offer premium reductions for specific structural improvements—typically 5–15% depending on the improvement type and carrier. The catch: carriers want proof that work was done to code and inspected. This is where the City of Conway permit comes in. A permitted, inspected roof-strap retrofit provides documentation that your home meets current code (IRC R802.11.2); the insurer sees that as legitimate risk reduction and may offer a discount. An un-permitted retrofit, even if structurally sound, usually doesn't qualify.
The typical discount structure: roof-to-wall straps, 5–10%; impact windows, 5–15%; secondary water barrier (decking over underlayment), 3–5%; garage-door bracing, 2–5%. Carriers combine discounts (often capping at 20–25% total), so a full retrofit (straps + windows + barrier + brace) might yield a 15–20% premium reduction. For a homeowner paying $1,500/year, that's $225–$300 in annual savings. Most retrofits cost $15,000–$30,000; if the discount lasts 7–10 years, it pays back the retrofit. The City of Conway permit doesn't, by itself, unlock the discount—you still have to submit proof to your insurer and they still have to approve it—but it's the prerequisite. Carriers will not consider an un-permitted retrofit, period.
To maximize insurance value: (1) Contact your insurer BEFORE you pull the permit and ask which improvements they recognize. (2) Ensure your contractor (or engineer) knows your insurer's requirements; some carriers want specific fastener types or testing certifications beyond code minimum. (3) Retain all permit documentation, sealed drawings, inspection sign-offs, and manufacturer cut-sheets. (4) After final inspection, request a post-retrofit inspection from your insurer (some carriers do this for free, others charge $150–$300); their adjuster will verify that work matches the permit plan. (5) Submit the final inspection report and documentation to your insurer and ask for a formal discount letter—don't rely on verbal promises. The City of Conway's permit office will keep records on file, but your insurer needs the documentation in hand.
South Carolina also offers property-tax exemptions or credits for certain energy-efficiency and safety upgrades; check with the Conway Tax Assessor's Office (Horry County) to see if your retrofit qualifies. Some homeowners have claimed modest property-tax reductions (2–5%) for impact windows or hardened roofs, though this varies by county and is not guaranteed. The permit and final inspection report are your ticket to exploring these incentives.
Contact City of Conway, South Carolina (address available via city website or main phone number)
Phone: 843-248-1896 (Horry County Building Services) or search 'Conway SC Building Department' | https://www.cityofconway.com (check for online permit portal or permit application info)
Monday–Friday, 8:00 AM–5:00 PM (Eastern Time). Closed weekends and South Carolina holidays.
Common questions
Do I need a permit if I'm just replacing my roof with impact-resistant shingles?
If you're replacing shingles only—no structural changes—most jurisdictions exempt roofing from permit requirements under the IRC. However, if your retrofit includes secondary water barrier (peel-and-stick under shingle starters), roof-decking replacement, or attachment upgrades, a permit is required. The City of Conway recommends calling the Building Department before ordering materials; a simple over-the-phone question often clarifies whether your specific scope is exempt. If you're doing a full re-roof as part of a wind-hardening retrofit, plan for a permit.
How long does plan review take at the City of Conway?
Standard residential building permits (including hurricane retrofits with sealed plans) typically see 2–3 weeks for initial review and approval. If the reviewer has comments or asks for revisions, add another 1–2 weeks. Complex retrofits involving structural work, geotechnical analysis, or historic-district review (HPC overlay) can stretch to 4–6 weeks. Most plan reviewers in Conway provide written comments (email or letter) so you can address issues before resubmitting. Calling ahead and asking 'what's the current review timeline?' is wise during busy seasons (spring in Conway, ahead of hurricane season).
Can I do this retrofit myself as an owner-builder?
Yes. South Carolina Regulation 40-11-360 allows owner-builders to perform work on their own owner-occupied residential property without a contractor license, provided the home is owner-occupied (you live there). You still must pull the permit yourself and pass inspection. However, if your retrofit includes sealed structural drawings (roof straps, garage-door bracing), those drawings must be stamped by a licensed PE; you cannot engineer the work yourself. For simpler work (shutters, impact windows), owner-builder is feasible if you're handy. Most homeowners hire a contractor for roof-strap work because it requires temporary roof access and proper sequencing; doing it wrong voids the permit.
What if my home is in a FEMA flood zone? Does that change the permit process?
Yes. Homes in FEMA flood zones (AE, A, or X-shaded) must comply with both City of Conway building code and FEMA floodplain regulations. Your retrofit may be subject to elevation certification, prohibition of certain work below the Base Flood Elevation (BFE), and flood-mitigation standards (e.g., wet floodproofing, utility elevation). When you submit your permit, the City of Conway will check whether your property is in a flood zone; if it is, the plan reviewer will flag compliance requirements and may require a FEMA-certified elevation certificate (cost: $400–$800). This can add 2–4 weeks to the review. Contact the Horry County Stormwater/FEMA floodplain administrator (via the City of Conway) to clarify your flood zone before designing your retrofit.
Do I need a structural engineer for every retrofit, or only big ones?
The City of Conway requires sealed structural drawings for roof-to-wall strap upgrades, garage-door bracing, and any work that affects the load path or lateral-load resistance. For stand-alone window or shutter upgrades (no structural changes), sealed drawings are not required—just manufacturer specs and code compliance. A rough rule: if the work touches the frame (roof, walls, foundation), get an engineer. If the work is trim or fill-in (windows, shutters), you can usually rely on manufacturer documentation. Call the City of Conway Building Department with your scope; they'll tell you whether you need a PE. A sealed drawing from a South Carolina PE typically costs $800–$1,500.
What is a secondary water barrier, and why do I need one?
A secondary water barrier is an extra layer of waterproofing (usually peel-and-stick synthetic underlayment or ice-and-water shield) laid on the roof decking, under the shingles. It stops wind-driven rain from leaking through nail holes, shingle seams, and missing shingles during a hurricane. IRC R703.7 requires water-resistive barriers on all exterior walls and roofs in high-wind areas; the City of Conway interprets this to mean a secondary barrier is a best practice (and code minimum for new construction). If you're doing a full re-roof as part of a retrofit, the City of Conway's plan reviewer will ask whether you're including a secondary barrier; if not, they'll likely condition approval on adding one. Cost: $1–$3 per sq ft (material + labor), so $2,000–$6,000 for a typical home. It's worth it—secondary barriers reduce insurance claims and extend shingle life.
How much will my permit and inspections cost?
The City of Conway's permit fees are based on a percentage of the retrofit's estimated valuation. Most hurricane retrofits (roof straps, windows, shutters, bracing) fall in the $250–$600 permit fee range. Inspection fees are typically $50–$150 per visit (rough-framing, final); plan for 2–3 inspections, so $100–$300 total. In-plan review and re-submissions are usually free, but any changes to scope may trigger a re-review fee. The city will provide a detailed fee schedule when you apply; don't be surprised if the permit fee is 1.5–2% of your retrofit valuation. For a $20,000 retrofit, expect $300–$400 in permit + inspection costs.
Can I claim the retrofit cost on my homeowner's insurance as a loss deduction?
No. Retrofits are home improvements and are NOT tax-deductible as losses. However, you may qualify for property-tax relief or energy-efficiency credits at the state or county level; check with the Horry County Tax Assessor's Office. The primary financial benefit is the insurance premium discount (5–15% annual savings) and the long-term reduced risk of wind damage. If a future hurricane hits and your home is less damaged because of the retrofit, your insurer will pay out accordingly; that's the return on investment. Keep all retrofit documentation for future insurance claims.
Do I need a permit to install hurricane shutters if I'm renting the home?
Yes. The shutter retrofit must be permitted regardless of owner/tenant status. However, South Carolina owner-builder law (SC § 40-11-360) requires the person pulling the permit to be the owner-occupant. If you're renting, the landlord (owner) must pull the permit; tenants cannot permit work on a property they don't own. The landlord can authorize the tenant to manage the project, but the permit goes to the owner. This also applies if you're a property manager for a vacation rental or investment property—the legal owner must be the permit applicant.
What happens at the final inspection? What is the inspector looking for?
The final inspection is the City of Conway's sign-off that your retrofit meets code. The inspector will: (1) Verify that roof-to-wall straps or other connections match the sealed drawings (correct fasteners, proper spacing, tight bolts). (2) Check that secondary water barriers are installed under shingles or roofing. (3) Confirm that impact windows are labeled and installed with proper flashing and sealant. (4) Test garage-door bracing for tightness and proper anchoring. (5) Review the overall workmanship and code compliance. If everything passes, the inspector signs off and you get a Certificate of Occupancy (or Final Permit Sign-Off). If there are defects (loose bolts, missing fasteners, improper flashing), the inspector will flag them and schedule a re-inspection after you fix them (typically a week later). Expect the final inspection to take 30–60 minutes. Once final inspection passes, you're eligible to claim insurance discounts and your retrofit is documented on the permit record for future resale disclosure.