Why It Matters
When you're gut-renovating a duplex or building a new rental from the ground up, your standard landlord policy won't cover a thing — it's written for occupied, finished properties. Builder's risk fills that gap by insuring the structure, materials on-site, and sometimes equipment against fire, theft, vandalism, and weather damage. It typically runs 1%–5% of the total construction budget per year, prorated for the project duration. Once the certificate of occupancy is issued and the property is ready for tenants, you replace it with a commercial property insurance or landlord policy. Failing to carry builder's risk during a major rehab is one of the most expensive coverage gaps investors make.
At a Glance
- Covers buildings, materials, and equipment during active construction or renovation
- Policy term matches the build timeline — typically 3 to 12 months
- Cost ranges from 1%–5% of the total project value annually, prorated
- Does NOT cover worker injuries, liability, or completed work after occupancy
- Required by most lenders on construction loans and hard money draws
How It Works
Builder's risk policies are project-based, not property-based. Unlike a standard landlord or homeowner's policy that renews annually on a fixed address, builder's risk is tied to a specific construction project and expires when the project wraps. You apply by submitting your total project budget, the address, the scope of work, and the estimated completion date. The insurer prices the policy off that projected value — not the current structure's worth.
Coverage typically follows the work in progress. The policy insures the structure at each stage of completion, materials stored on-site, and sometimes materials in transit to the site. If a fire destroys framing that cost $40,000 to erect, the policy pays to rebuild that work — minus your deductible. Most policies also cover theft of building materials, which is more common than investors expect on active job sites. Coverage usually excludes vacant property insurance scenarios where work has stopped for 30 to 60 days, so delays can create gaps you need to address proactively.
The aggregate limit should match your total project cost, not just the land value. A common mistake is underinsuring by setting the coverage limit at the purchase price or the structure-only value. If you're doing a $180,000 full renovation on a building you bought for $120,000, your builder's risk limit needs to reflect at least the $180,000 in projected improvements — and ideally the full replacement cost of the finished structure. Lenders who fund construction draws will often verify this before releasing funds. If your costs escalate mid-project, call your insurer to increase the limit before the next draw.
Real-World Example
Andre closed on a vacant four-unit building in a transitional neighborhood for $210,000. His renovation scope — new roof, electrical, HVAC, kitchens, and baths — totaled $195,000. Before his first contractor showed up, his hard money lender required proof of builder's risk coverage with a limit of at least $350,000 (purchase price plus renovation budget). Andre got a quote for $3,200 for a nine-month policy, which worked out to roughly 0.9% of the project value. Three months in, a water main broke on the adjacent street and flooded the first-floor unit during rough-in plumbing, damaging $22,000 worth of new subfloor and framing. The builder's risk policy paid out $19,800 after his $2,200 deductible. Without that coverage, he would have eaten the loss out of pocket and likely blown his business interruption timeline for the entire project.
Pros & Cons
- Covers construction materials, in-progress work, and on-site equipment in one policy
- Can be structured to cover soft costs like architectural fees and permit costs
- Usually required by lenders, so getting it unlocks financing and draw access
- Protects against theft of materials — a real and frequent job-site problem
- Relatively affordable when prorated across a short project timeline
- Does not cover worker injuries or general contractor liability — you need separate policies
- Gaps appear fast if the project stalls or goes past the policy expiration date
- Rarely covers flood or earthquake without a paid endorsement
- Policy lapses when the property becomes occupied, leaving you to scramble for a new policy
- Disputes over "completed vs. in-progress" work can complicate claims on phased projects
Watch Out
Don't let a delay create an uninsured window. If your nine-month project stretches to eleven months because of permitting or contractor issues, your builder's risk policy may lapse before the project is done. Most policies allow extensions, but you need to request them proactively — before expiration, not after a loss occurs. A lapsed policy with an active job site is a serious exposure. Budget for the possibility of an extension when you buy the policy.
Watch the "work stoppage" clause carefully. Many builder's risk policies include language that suspends or voids coverage if construction activity stops for 30 to 60 consecutive days. This catches investors off guard during permit delays, contractor disputes, or winter weather slowdowns. If your site will be idle for more than a few weeks, contact your insurer immediately to understand your coverage status. You may need a vacant property insurance rider or a separate short-term policy to bridge the gap. Leaving the policy on autopilot during a long delay is how claims get denied.
Renters insurance held by existing tenants in a partially occupied building does NOT protect your investment. If you're doing a renovation in phases — keeping some units occupied while you work on others — builder's risk covers the renovation scope, but you still need a landlord or commercial policy for the occupied portions. The two coverages don't overlap automatically. Make sure your broker understands the mixed-use situation before you bind coverage, and confirm in writing exactly which parts of the building are covered under each policy.
Ask an Investor
The Takeaway
Builder's risk insurance is non-negotiable on any serious construction or gut-renovation project. It covers the gap that every other policy misses — the period when your building is exposed, partially demolished, and full of expensive materials that haven't been secured yet. Get it before the first contractor steps on the property, set the limit at your full project cost, and don't let the policy lapse mid-project. The premium is small relative to what a single fire or theft incident can cost you.