What happens if you skip the permit (and you needed one)
- Stop-work order from Houma Building Compliance followed by permit-fee doubling on the re-pull ($400–$800 total instead of $200–$400), plus potential lien on your property if you don't cure within 30 days.
- Insurance claim denial: if wind damage occurs and the insurer discovers unpermitted structural work (roof straps, garage-door bracing), they can reduce or void the claim — a catastrophic $50,000+ loss on a Category 2 hurricane hit.
- Insurance discount forfeiture: no signed OIR-B1-1802 form means you forfeit $600–$1,500 annually in premium savings, costing $3,000–$7,500 over 5 years.
- Resale disclosure: Louisiana requires sellers to disclose unpermitted work; buyers will demand escrow holdback or repair credit, often killing the deal or dropping sale price 3–5%.
Houma hurricane retrofit permits — the key details
Houma's wind-retrofit permitting hinges on Louisiana Building Code compliance, specifically the wind-design provisions in Chapter 3 (Building Planning) and Chapter 8 (Roof Assemblies and Roof Coverings). The city requires that all structural upgrades — roof-to-wall straps, secondary water barriers, shutter mounting, impact-window frames, and garage-door bracing — be designed for the design wind speed applicable to your address and elevation. For most of Houma, that's 130 mph (3-second gust) per Louisiana Building Code. Unlike Florida's high-velocity zones, Houma does not mandate third-party impact-window certification (TAS) or Miami-Dade product approval, but your windows must still meet the impact-resistance criteria in ASTM E1996 or ASTM E1886 if they're in a wind-borne-debris zone (which most of Houma is, given the coastal risk). The permit application requires a site plan showing roof geometry, truss/rafter spacing, and proposed attachment points, plus engineering drawings or manufacturer specs for fasteners, anchors, and shutter hardware. The City of Houma Building Department will review for compliance within 7–10 business days; most first submissions pass if you've specified fastener types (e.g., 1/4-inch galvanized bolts, 16-penny galvanized nails, Simpson Strong-Tie hurricane ties) and included roof-cover weight and deck thickness.
The most common rejection point is incomplete roof-to-wall connection documentation. Louisiana Building Code requires that every rafter or truss be mechanically connected to the top plate of the wall below, typically via metal hurricane tie straps rated for the design wind speed. If your engineering plan shows rafters spaced 24 inches apart but only 4 ties per roof section (instead of one per rafter), the plan reviewer will reject it with a request for 'complete roof-framing connection schedule.' The fix is straightforward: schedule every rafter/truss connection with its tie type and fastener spec. A second common issue is missing secondary water barrier. Louisiana Building Code R905.1.1 now requires that asphalt shingle roofs include a secondary (or underlayment) layer — typically self-adhering peel-and-stick membrane under the starter course — to limit water intrusion during high-wind events. Submittals that don't mention the underlayment, or that specify felt instead of self-adhering, get flagged. The Houma Building Department is generally reasonable on clarifications; a one-page supplemental letter with drawings usually resolves rejections within 48 hours.
Houma's permit costs run $200–$400 depending on project scope and assessed valuation. A roof-strap retrofit on a 2,000-square-foot house typically costs $250–$350; adding impact-window retrofit or shutter installation can push it to $400–$500. Fees are based on the project valuation (materials + labor estimate), not a flat rate. The permitting timeline is 2–3 weeks from submission to approval, assuming no plan corrections. Inspections are staged: a pre-installation framing inspection (if new straps are being installed into the attic), a mid-installation inspection (once all roof attachments are fastened but before sheathing closure), and a final inspection once all work is complete and the secondary water barrier and shingles are reinstalled. Many contractors schedule the mid-installation inspection to catch fastener-placement errors before they're buried under roofing. The final inspection is the critical gate: the inspector must verify that fasteners are the correct type, driven at the correct spacing, and that secondary water barriers are present before signing off. Only after that final sign-off does the inspector issue the OIR-B1-1802 wind-mitigation inspection form, which you then submit to your insurance company.
The OIR-B1-1802 form is the financial lever of your retrofit. This form documents that your home has met specific wind-mitigation standards (roof-to-wall connections, secondary water barriers, impact openings, garage-door bracing, roof cover, and roof geometry) and that a licensed inspector verified the work. When you submit this form to your homeowner's insurer, the insurer is contractually obligated to offer you a wind-mitigation discount — typically 5% (basic) to 15% (full retrofit). For a $1,200 annual premium, that's $60–$180 per year, or $300–$900 over 5 years. Retrofit costs for roof straps, shutters, and a secondary water barrier typically run $3,000–$8,000 depending on house size and scope; the insurance discount often recoups that within 4–6 years, then produces pure savings. Without the permit and signed OIR-B1-1802, you have no lever — your insurer won't offer the discount, and you've spent the retrofit money with no financial return.
Houma-specific context: the city sits in Terrebonne Parish, about 60 miles south of New Orleans, with high hurricane risk and significant coastal flooding exposure. Many homes are built on pilings or elevated foundations due to subsidence and storm surge. If your home is elevated, the wind loads on the structure increase, and roof-to-wall connections become even more critical — the permit plan will scrutinize attic framing and strap placement more closely. Additionally, Houma's high water table and organic-clay soils mean that anchoring hurricane shutters or installing new fasteners may encounter buried utilities or require pre-work utility locates; submitting your permit early (4–6 weeks before your target work date) gives you time to identify conflicts. The City of Houma Building Department does NOT maintain a fully online permit portal; you'll likely submit plans by email or in-person at City Hall. Contact the building department directly (phone or visit their office during business hours, Mon–Fri 8 AM–5 PM) to confirm the current submission process and any local amendments to the Louisiana Building Code that might affect your retrofit scope.
Three Houma wind / hurricane retrofit scenarios
Why the OIR-B1-1802 form is your real reward
The OIR-B1-1802 (Florida Insurer Form for Wind-Mitigation Inspection) was created by Florida's Office of Insurance Regulation, but Louisiana insurers recognize and honor it because it documents measurable, code-compliant wind-hardening improvements. When a licensed inspector signs this form after inspecting your retrofit, the insurer receives proof that your home meets specific mitigation criteria: (1) roof-to-wall connections (straps/ties), (2) secondary roof water barrier, (3) roof cover/shingle age, (4) impact-resistant openings (shutters or rated windows/doors), (5) garage-door bracing, and (6) roof geometry (slope and shape). Insurers use this form to trigger discounts because each of these improvements reduces the likelihood of damage or claim cost. For example, secondary water barriers reduce interior water intrusion, which is a major source of mold claims and secondary damage; impact-resistant windows reduce penetration and interior pressure, which can prevent roof failure. The discount compounds if you have multiple improvements.
Houma homeowners often report 8–12% average discounts after completing a full retrofit (roof straps, secondary barrier, shutters, garage bracing). On a $1,200 annual premium, that's $96–$144 per year. Over 10 years, that's $960–$1,440 in pure savings — often more than the retrofit cost itself if you do the work strategically (e.g., combining roof work with other maintenance, doing shutters in phases). The critical step: schedule your final inspection with a licensed wind-mitigation inspector (your general contractor can recommend one, or ask your insurance agent for a referral). Once that inspector signs the OIR-B1-1802 form, you submit it directly to your insurer's claims or policy department. Do not assume they'll apply the discount automatically; follow up within 2 weeks to confirm the discount was added to your renewal quote.
One final note: Louisiana's insurable-value rules and coastal-risk reassessments mean that premiums can rise even after you complete a retrofit (if your home is reassessed for storm surge or flood risk, or if the insurer tightens overall pricing). The wind-mitigation discount acts as a brake on those increases. Without it, your premium might jump $300–$600 annually; with it, the increase might be $150–$300. In coastal areas like Terrebonne Parish, where insurance market volatility is high, the discount often prevents a policy non-renewal or forced placement in the insurer-of-last-resort (LHWOP). That's the true long-term value of permitting and documenting your retrofit.
Coastal Houma + elevated construction + permit timing
Houma's geography creates two permit complications. First, subsidence and flood risk mean most homes (especially those built before 2000) sit on pilings, stilts, or elevated slabs. When your roof-to-wall connections are 6–10 feet above grade, inspector access and fastener verification become trickier. The City of Houma Building Department will likely require that you provide site access for the inspector to climb into the attic and visually verify that every strap is bolted correctly and that secondary water barrier extends down to the eaves. If your attic is cramped, uninsulated, or inaccessible (e.g., buried ductwork, no attic stairs), flag this with your contractor before permitting. Some inspectors will accept high-resolution photos of strap installations if access is documented as difficult, but this requires prior coordination with the building department. Plan for 2–3 additional days of installation time if your attic access is poor.
Second, Houma's high water table and organic-clay soils create utility conflicts. If you're installing new fasteners or drilling for shutter anchors, you risk hitting buried electrical conduit, plumbing, or gas lines. The Louisiana 811 One-Call system (call 811 or visit the website) allows you to request free utility locates before you excavate or drill. This is especially important if you're anchoring shutters to a foundation or installing roof-penetrating fasteners. Submit your utility-locate request 3–5 business days before installation; mark the locate marks on your property and have your contractor verify clearances before driving bolts. This adds 1 week to your schedule but prevents a $10,000+ liability claim if you rupture a line.
Timing strategy: submit your permit application 6–8 weeks before your target installation date. This gives you time to coordinate utility locates, prepare the site (e.g., clear attic access, schedule contractor), absorb any plan-review corrections, and schedule inspections around weather and contractor availability. Hurricane season (June–November) is peak retrofit demand in Houma; building-department review times can stretch to 3–4 weeks if you submit in August or September. Off-season submission (December–May) often sees 7–10 day turnarounds. If you're planning a retrofit in anticipation of a storm season, start planning in March or April. If you're retrofitting after a near-miss or actual storm, the city will often expedite review (5–7 days) given the public-safety priority, but don't count on this — submit early regardless.
Houma City Hall, 2nd Floor, 2nd & Roussell Street, Houma, LA 70360 (confirm locally)
Phone: (985) 873-6369 or search 'Houma LA building permit phone' to verify current number | City of Houma does not maintain a fully online permit portal; submit plans by email or in-person to the building department
Mon–Fri 8 AM–5 PM (confirm with city directly)
Common questions
Do I need a permit for hurricane shutters in Houma?
Yes. Houma requires a permit for any permanent installation of hurricane shutters, accordion or otherwise. Shutters are structural elements that must be anchored to withstand the design wind speed (130 mph in Houma). The permit ensures your anchor bolts are correctly sized and spaced to resist pull-out. Cost: $250–$350. The permit is worth the fee because it unlocks insurance discounts (3–5% if shutters alone, up to 15% if combined with roof straps and other upgrades) and provides documentation if you ever sell the home.
What's the difference between Louisiana's wind-retrofit rules and Florida's?
Louisiana Building Code does NOT require Miami-Dade TAS (Type Approval System) impact-window certification or third-party testing of shutters or windows. Houma uses ASTM E1996 and Louisiana Building Code R301.2 wind-design standards, which are less prescriptive than Florida's. This means permitting is faster and cheaper in Houma. However, Louisiana still requires roof-to-wall ties, secondary water barriers, and proof of fastener pull-out ratings — so you cannot skip engineering. The net result: Houma retrofits cost 10–15% less than equivalent Florida work and permit in 2–3 weeks instead of 4–6 weeks.
Can I do a DIY wind retrofit and still get a permit and insurance discount?
Yes, but with caveats. Louisiana allows owner-builder permits for owner-occupied homes. You can pull a permit for your own labor, but you will still need a licensed wind-mitigation inspector to sign the OIR-B1-1802 form at the end. That inspection costs $150–$300. Additionally, your work must pass final inspection by the City of Houma inspector, who will verify that fasteners, straps, and secondary barriers meet code. If your DIY work doesn't meet code, you'll be asked to hire a contractor to fix it — often costing more than if you'd hired one from the start. Many homeowners choose to permit the work themselves but hire a licensed roofer for the strap installation and secondary barrier, then do prep/cleanup themselves. This hybrid approach reduces costs while ensuring code compliance.
How much will a full wind retrofit cost in Houma?
A full retrofit (roof-to-wall straps, secondary water barrier, hurricane shutters, garage-door bracing, impact-rated entry door or windows) on a typical 2,000–2,500 sq-ft home runs $12,000–$22,000 depending on material quality, labor, and how much work combines with other roof maintenance. If you're re-roofing anyway, the secondary barrier adds only $500–$1,000. Shutters alone are $5,500–$7,500; roof straps $7,500–$10,000; impact windows $3,000–$8,000 per opening. Permit fees for a full retrofit are $350–$500. Insurance discounts typically recoup 40–60% of retrofit costs over 10 years, with the remaining costs justified by reduced damage risk and storm-readiness peace of mind.
What if my house is elevated on pilings (like most Houma homes)?
Elevated homes have HIGHER design wind loads because the structure is more exposed. The City of Houma Building Department will scrutinize your roof-to-wall connection schedule more carefully to ensure every rafter or truss is anchored. Attic access for inspection may be difficult (tall crawlspace), so plan for additional site-prep time. Insurance discounts for elevated homes are sometimes 1–2 percentage points higher than for slab-on-grade homes because the exposure is greater and mitigations more critical. Mention the elevation in your permit application; it may trigger a pre-installation framing inspection (a good thing — it catches errors before closure).
How long does the entire process take (permit + work + inspection)?
Permit approval: 2–3 weeks (7–10 days review + 3–5 days corrections if needed). Installation: 1–4 weeks depending on scope (shutters alone: 1–2 weeks; full retrofit with roof work: 3–4 weeks). Final inspection: scheduled within 1–2 weeks of completion, typically 1–2 hours on-site. Total timeline: 6–10 weeks from submission to final sign-off and OIR-B1-1802 form in hand. If you submit in off-season (winter) and schedule work immediately, you can compress this to 4–6 weeks. Hurricane season submissions can stretch to 12+ weeks if inspectors are backlogged.
Will my insurance company definitely give me a discount if I complete the retrofit and get the form signed?
Your insurer is required by Louisiana law to OFFER a wind-mitigation discount if you provide a signed OIR-B1-1802 form. However, the discount amount varies by insurer (3–15% range) and may not apply if you've already filed recent claims or if your home is reassessed for higher risk. Submit the form promptly (within 30 days of final inspection) and follow up with your insurer's policy department to confirm the discount was applied to your renewal quote. If they decline the discount, ask for a written explanation; you can appeal or shop for another insurer if the discount is denied without cause.
What if I'm selling my home soon — does a wind retrofit add resale value?
Yes, in coastal Louisiana. A documented wind retrofit (with permit and OIR-B1-1802 form) is a selling point because it demonstrates storm-readiness and may come with ongoing insurance discounts that the buyer can inherit. Disclose the retrofit and include copies of the permit and inspection form in your seller disclosure package. Buyers in coastal areas often view retrofits as added value (worth 1–2% of home price in competitive markets). If you don't permit the retrofit, you must disclose it as unpermitted work, which can kill the deal or trigger a price reduction of 3–5% or more. Permitting is always the safer choice for resale.
Are there grants or rebates in Louisiana for wind retrofits?
Louisiana's My Safe Florida Home program (and equivalent state/parish programs) sometimes offers cost-share or rebate funding for retrofits, but eligibility and funding levels fluctuate annually. Contact the Louisiana Department of Natural Resources or Terrebonne Parish Office of Homeland Security to inquire about current programs. Additionally, some insurers offer supplemental discounts or rebate checks if you complete a full retrofit. Ask your insurance agent if your company has a retrofit incentive program. Federal disaster relief funding (post-declared storms) may also cover retrofits, but this is temporary and requires a declared event in your area.
Do I need to do the entire retrofit at once, or can I phase it over time?
You can phase the retrofit and pull separate permits for each phase. For example: Year 1, roof straps and secondary barrier (largest impact on insurance discount); Year 2, shutters; Year 3, impact windows. Insurance typically applies a pro-rata discount based on what's completed and documented on the OIR-B1-1802 form. However, coordinating multiple permits and inspections over time can be administratively messy. Many contractors recommend completing the retrofit in one project to minimize permitting overhead and allow the insurance discount to apply immediately. If budget is tight, prioritize roof-to-wall straps and secondary barrier first — these provide the biggest mitigation and discount impact for the cost.