Renovating or Building a Luxury Home: Builders Risk and Course of Construction in Fire and Wind Zones

If you are building or gut-renovating a luxury home, you need a builders risk policy (also called course of construction insurance), not your homeowners policy. Standard homeowners forms cut coverage after 60 days of vacancy, treat major construction as an increase in hazard, and commonly limit or exclude losses to a dwelling under renovation. Builders risk insures the structure in progress, materials on site, off site, and in transit, and optional soft costs, from groundbreaking to certificate of occupancy. In wildfire zones (California, Colorado) and wind zones (Florida, Texas coast) the placement usually runs through surplus lines with percentage deductibles, and getting the owner, contractor, and lender all named correctly is half the job.

This guide covers why your homeowners policy is the wrong instrument during construction, what builders risk actually covers on a custom home, how renovation placements insure the existing structure plus the work, what changes in wildfire and named-storm territories, how builders risk coordinates with your contractor's insurance, and how the handoff to a permanent homeowners policy works at completion. It is written for owners building or renovating in the $2M to $20M+ range, and it pairs with our guides to insuring a $5M to $20M home and surplus lines homeowners insurance.

Key Takeaways

• A homeowners policy is not built for construction. Standard forms exclude vandalism after 60 consecutive days of vacancy, per Policygenius, and renovations may be limited or specifically excluded under the permanent policy, per US Assure.
• Builders risk covers the structure in progress plus materials on site, off site, and in transit. Transit and off-site storage are coverage decisions to make deliberately, per IRMI, and soft cost and delay endorsements cover the extra interest, fees, and expenses a covered loss causes.
• Renovation builders risk can insure the existing structure and the work, but never assume it does. Policies can be written to insure only the renovation and exclude the existing building, per US Assure.
• Catastrophe zones change the placement. Wildfire-exposed course of construction in California and Colorado increasingly places in the E&S market, where PURE Programs and others run dedicated high-value programs, and coastal Florida and Texas builds carry named-storm percentage deductibles of 2% to 5%, per Bridgeway Insurance.
• Representative cost: roughly $0.85 to $1.50 per $100 of completed value for inland residential builds, and $2.00 to $4.50 for renovation and coastal work, per Hotaling Insurance. Representative ranges, not quotes.
• Builders risk ends at occupancy, and the handoff matters. Coverage typically terminates when the home is occupied or put to its intended use, per US Assure, so the homeowners policy must bind the same day.
• Latent Insurance Services is an independent brokerage (NPN #20972791) that places builders risk, the existing-dwelling coverage, and the completion homeowners policy across admitted, HNW, and surplus lines markets, so there is one desk responsible for the whole timeline.

Why Your Homeowners Policy Is the Wrong Instrument During Major Construction

A homeowners policy prices and covers an occupied, finished dwelling, and it starts shedding coverage the moment your project stops looking like one. Three separate mechanisms bite. First, vacancy: standard forms exclude vandalism and malicious mischief once the dwelling has been vacant for more than 60 consecutive days before a loss, per Policygenius, and a home emptied out for a gut renovation is exactly that. Second, increase in hazard: an active construction site, with open framing, torch work, temporary power, and trades moving through, is a materially different risk than the one the carrier underwrote, and concealing it invites a coverage fight or a mid-term cancellation. Third, renovation losses themselves: coverage for renovations may be limited or specifically excluded under the permanent property policy, per US Assure.

Owners get this wrong in a predictable way: they keep paying the homeowners premium, assume that means they are covered, and find out after the framing fire that the carrier considers the risk misrepresented. The right sequence is the opposite. Tell your broker before demolition starts, put a builders risk policy on the project, and decide deliberately what happens to the existing homeowners policy (endorse it, replace it, or keep it for liability and contents in a partial-occupancy renovation). If your current carrier reacts badly to the renovation disclosure, that is solvable; it is the undisclosed project that is not. Owners of high-value homes have the most to lose here, because the finishes and the rebuild costs are largest exactly where the standard forms are weakest.

What Builders Risk Covers on a Custom Home

Builders risk (course of construction) insurance covers the structure while it is being built, plus the materials that will become part of it, against fire, wind, theft, vandalism, and the other perils of an active site. It is written for the construction term, typically 12 months on a custom home with extensions available, and the limit should equal the completed value of the project: hard construction cost, not land.

• The structure in progress. Foundations, framing, roofing, systems, and finishes as they go in. A fire that takes the house at 80% complete is paid at the value in place.
• Materials on site. Lumber packages, windows, cabinetry, and stone staged for installation. Theft of staged materials is one of the most frequent builders risk claims on residential sites.
• Materials off site and in transit. Custom millwork at the fabricator and the window package on a truck can be covered, but transit and off-site storage are deliberate coverage decisions, not automatic, per IRMI. On a luxury build with long-lead imported materials, these extensions matter.
• Soft costs and delay. Optional endorsements cover the additional interest, loan fees, architect fees, permits, and taxes that a covered loss adds, per US Assure, and delayed completion coverage insures specified extra expenses caused by a covered delay, per IRMI. On a $10M build carrying a construction loan, six months of extra interest is a real number.

What builders risk does not cover matters just as much: liability (that is the contractor's GL), workers' injuries (workers comp), faulty workmanship itself, and, on many forms, flood and earthquake unless bought back by endorsement. Wind may be limited or excluded in coastal territories, which we cover below.

Renovating: Insuring the Existing Structure Plus the Work

A renovation has two things at risk, the existing home and the new work, and the single most important placement question is who insures each. Renovation builders risk policies can be written to cover the existing structure plus the improvements, or only the improvements. Coverage for existing structures needs special review and should never be assumed, per US Assure.

Three structures show up in practice:

• Builders risk covers everything. One policy insures the existing dwelling and the renovation at combined completed value. Cleanest at claim time, and the usual answer for gut renovations where the family moves out.
• Homeowners keeps the dwelling, builders risk covers the work. Common when the family stays in the home during a wing addition or kitchen-scale project. The homeowners carrier must be told and must agree, often by endorsement. The seam between the two policies is where disputes live, so the two limits and perils need to be lined up deliberately.
• A renovation program takes both. HNW markets run dedicated renovation and course of construction programs for exactly this: PURE Programs writes E&S coverage for high-value homes under construction or renovation, per PURE Programs, useful when the admitted homeowners carrier will not stay on a home under major renovation.

One more seam to know: if the contractor damages the existing structure through its operations, that claim generally lands on the contractor's general liability policy rather than builders risk, per The Hartford. You want both policies in place and both carriers known before demolition day.

Building in a Wildfire Zone: California and Colorado Placements

A house under construction in a wildfire zone is the peak of the risk curve: exposed framing, no defensible finishes, and a site full of ignition sources. Admitted appetite for wildfire-exposed course of construction has thinned the same way it has for finished homes, and wildfire-zone contractors and owners have seen options shrink and pricing climb, per CLM Magazine. The practical consequence: in the WUI foothills of California and Colorado, builders risk for a custom home is usually a surplus lines placement.

That is consistent with where the whole market has gone. California surplus lines homeowners transactions jumped 119% in the first half of 2025 and the book passed 300,000 policies, per the Insurance Journal, driven by admitted-market access rather than worsening risk, per Insurance Journal analysis. Course of construction follows the same channel: E&S carriers and programs (including PURE Programs' high-value construction and renovation paper) write what the admitted market will not, at wildfire-loaded rates and with wildfire-specific conditions. Expect underwriters to ask about brush clearance at the site, water supply, fire department distance, and hot-work controls, and expect wood-frame construction to price hardest. If the home is in Malibu, Montecito, Tahoe, or the Boulder foothills, place the builders risk and the eventual homeowners policy with the same strategy in mind; our California high-value home insurance guide covers where that permanent placement lands.

Two Colorado-specific notes. First, hail: a roof that goes on in June can take a hail loss in July, so mid-project wind and hail deductibles matter inland too. Second, the Marshall Fire taught carriers that suburban Front Range subdivisions burn, so do not assume a non-mountain address places admitted.

Building in Wind and Flood Zones: Florida and Texas Coast

On the Florida and Texas coasts the builders risk problem is wind, and the market handles it with percentage deductibles and, sometimes, outright wind exclusions. Named-storm and hurricane deductibles on Florida builders risk typically run 2% to 5% of the insured value rather than a flat dollar amount, and 5% wind deductibles are now common statewide, per Bridgeway Insurance. On a $6 million completed value, a 5% named-storm deductible is $300,000 of retained risk per storm, and the owner should know that number before the first named storm of the season, not after.

What changes in a coastal build:

• Wind may be excluded or restricted mid-frame. A framed, undried-in structure is the worst wind risk a carrier can write, and some coastal placements exclude wind entirely, requiring a separate wind-only solution, per US Assure. Read the wind section before binding, not at claim time.
• Distance to coast drives rate. Projects within a mile of saltwater can price at a multiple of inland equivalents, and carriers want documentation of tie-downs, impact-rated openings, and roof deck attachment as the build progresses.
• Flood is separate. Builders risk forms commonly exclude flood, and a slab-stage storm surge loss is a flood loss. Coastal projects add flood by endorsement or a separate policy, and lenders in V and AE zones typically require it.
• Season matters. Carriers tighten terms and may restrict binding when a named storm is in the box. Do not plan to bind builders risk in September with a storm on the map.

For the permanent placement that follows a coastal build, see our Naples and Palm Beach high-value home insurance guide; the named-storm deductible conversation continues for the life of the home.

Coordinating With Your Contractor: GL, Workers Comp, and Who Buys Builders Risk

Builders risk covers the property; your contractor's insurance covers the people and the liability, and the two have to be coordinated in the construction contract before work starts. The general contractor should carry general liability (which responds if operations damage the existing structure or a neighbor's property) and workers compensation for its crews, and you should collect certificates of insurance from the GC and confirm subs are covered under the GC's program. Larger projects sometimes use a wrap-up that consolidates liability coverage for everyone on the site, though on single-family work that is the exception.

Who buys the builders risk policy is a contract decision: it is usually the owner, the general contractor, or the developer, and every party with an insurable interest, typically the owner, the GC, and the lender, should be named on the policy, per LandesBlosch. On custom homes we generally prefer the owner to buy it, for three reasons: the owner controls the limit (a GC's blanket program may not reflect your true completed value or your soft costs), the owner controls the deductible decision in a catastrophe zone, and the policy stays in force if you change contractors mid-project. Whoever buys it, the construction contract (AIA forms do this) should say who insures what, and the certificates should prove it happened.

Cost, Duration, Extensions, and the Handoff at Completion

Representative builders risk pricing runs $0.85 to $1.50 per $100 of insurable value for new residential construction in non-coastal areas, with renovation work and coastal projects pushing toward $2.00 to $4.50 per $100, per Hotaling Insurance. These are representative ranges, not quotes; wildfire scores, distance to coast, construction class, and protection drive the real number.

Representative ranges synthesized from the cited reporting; catastrophe-zone luxury projects can price above them. Duration: write the policy term to the realistic construction schedule plus margin, because extensions are available but are underwritten and priced at the carrier's discretion, and a project that blows through its policy term in a hard market renegotiates from weakness. Luxury builds run long; 18 to 24 month initial terms are often worth the premium.

The handoff is the last trap. Builders risk typically ends at the earliest of policy expiration, occupancy, or the property being put to its intended use, with forms commonly cutting off coverage once the building is occupied for 60 days or complete for 90, per US Assure. Moving in early, even partially, can terminate coverage while you still think you have it. Start the permanent homeowners placement 60 to 90 days before completion (in a catastrophe zone, start earlier, because that placement has its own difficulty, as our $5M to $20M guide explains) and bind it effective the day builders risk ends. In wildfire and coastal territories the permanent policy often lands in the E&S market too; our surplus lines homeowners guide covers what that paper looks like.

Frequently Asked Questions

Does homeowners insurance cover a house during renovation?

Not reliably, and often not at all for the construction itself. Standard homeowners forms exclude vandalism after the home has been vacant more than 60 consecutive days, treat an active construction site as an increase in hazard the carrier did not underwrite, and may limit or specifically exclude renovation losses. An undisclosed major renovation can also give the carrier grounds to rescind or cancel. The correct instrument is a builders risk (course of construction) policy sized to the project, with a deliberate decision about whether the homeowners policy is endorsed, replaced, or retained for liability and contents.

What does builders risk insurance cover on a custom home?

Builders risk covers the structure in progress at its value in place, materials on site awaiting installation, and, when the extensions are purchased, materials stored off site and in transit. Optional soft cost endorsements cover the additional loan interest, fees, permits, and professional costs a covered loss creates, and delay endorsements cover specified expenses from a covered delay in completion. It does not cover liability, worker injuries, or faulty workmanship itself, and flood and earthquake are typically separate purchases. Wind can be restricted or excluded in coastal territories.

Who should buy builders risk, the owner or the general contractor?

Either can, and the construction contract should settle it before work begins. Every party with an insurable interest, typically the owner, the general contractor, and the construction lender, should be named on the policy. On custom luxury homes we generally recommend the owner purchase it: the owner controls the limit so it reflects true completed value and soft costs, controls the deductible decision in a catastrophe zone, and keeps the policy in force if the contractor changes mid-project. If the GC buys it instead, verify the limit, the named insureds, and the deductibles yourself.

How much does builders risk insurance cost on a luxury home?

Representative pricing runs about $0.85 to $1.50 per $100 of completed value for inland new residential construction, with renovations and coastal or wildfire-zone projects running roughly $2.00 to $4.50 per $100 and sometimes more. On a $6 million wildfire-zone or coastal build that is a six-figure premium for the construction term, plus a named-storm percentage deductible of 2% to 5% of insured value in Florida and coastal Texas. These are representative ranges rather than quotes; wildfire score, distance to coast, construction class, and project duration set the real number.

Can I get builders risk in a California or Colorado wildfire zone?

Yes, but usually through the surplus lines (E&S) market rather than an admitted carrier. Admitted appetite for wildfire-exposed course of construction has contracted along with the broader California and Colorado homeowners markets, and E&S programs, including dedicated high-value construction and renovation programs like PURE Programs, have taken up the risk. Expect wildfire-loaded rates, questions about site brush clearance, water supply, and fire department distance, and harder pricing for wood-frame construction. Plan the permanent homeowners placement at the same time, because it faces the same market.

When does builders risk end and the homeowners policy take over?

Builders risk typically ends at the earliest of the policy expiration date, occupancy, or the building being put to its intended use, and many forms cut off coverage once the home has been occupied for 60 days or complete for around 90 days. Moving in early, even into one finished wing, can trigger termination. Start the permanent homeowners placement 60 to 90 days before expected completion and bind it effective the day builders risk ends, so there is no gap and no period where a partially occupied home is uninsured.

If you are breaking ground or starting a gut renovation on a high-value home, especially in a wildfire or named-storm territory, Latent Insurance Services places the builders risk, the existing-dwelling coverage, and the completion homeowners policy as one coordinated timeline. We are an independent brokerage (NPN #20972791) with access to admitted carriers, HNW programs, and the broker-only surplus lines markets where catastrophe-zone course of construction actually gets written, and we line up the named insureds, deductibles, and effective dates so nothing falls in a seam.

Get a builders risk quote for your project or schedule a call with the construction budget and timeline, and we will map the coverage to it.

Last updated: July 12, 2026. Sourced from US Assure, IRMI, Policygenius, The Hartford, LandesBlosch, PURE Programs, Bridgeway Insurance, Hotaling Insurance, CLM Magazine, and Insurance Journal (all cited inline above).

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