---
title: share the premium saving with the land
canonical_url: https://ensurance.app/guide/share-the-premium-saving-with-the-land
markdown_url: https://ensurance.app/guide/share-the-premium-saving-with-the-land.md
subtitle: "a share per policy in force pays for the forest, floodplain or marsh work meant to cut the loss under a whole book"
category: nature-finance
---

# share the premium saving with the land

*a share per policy in force pays for the forest, floodplain or marsh work meant to cut the loss under a whole book*

If you carry many policies under one forested ridge, one floodplain or one marsh, the cheapest way to cut the loss behind the premium is not on any single lot. It is on the ground above and around them. The forest above the subdivision shapes how hot a fire arrives. The floodplain shapes how high the river gets on Main Street. The marsh shapes how much surge reaches the first row of houses. That ground does the work whether or not anyone pays for it.

A homeowner can harden one house. No homeowner can treat the ridge, and no policy can buy it. **Ensurance** is how the people the ground protects pay for its upkeep, in shares, through the place's own account (the wallet the place's agent holds, where payments land and its condition is recorded). It is not the forest, and it is not insurance: it pays no claims ([what ensurance cannot do](/guide/what-ensurance-cannot-do?from=guide)). It funds the loss control.

:::johnson
**the saving is made on the ridge.** Send part of it back.
:::

## an insurance discount for mitigation, across a whole landscape

There are three levers on a premium. You can **shop** (change carrier, re-rate), which moves your price and not the loss. You can **retain** (raise the deductible, self-insure a layer), which lowers the premium by keeping more of the loss. Or you can **shrink** the expected loss itself. Only the third changes the loss behind the bill for everyone under the same hazard. Whether the price follows is the carrier's call.

Shrinking at landscape scale reaches a price only when the work is measured, rated at the scale where it acts, and persists for the term. One placement shows a priced landscape credit can happen, on one HOA's own forest. In April 2025 Willis, The Nature Conservancy, UC Berkeley's Center for Law, Energy and the Environment and Globe Underwriting placed $2.5 million of wildfire cover over 1,345 acres of the Tahoe Donner Association's forest in California. The sponsors report a premium 39% lower and a deductible 89% lower than without recognizing its forest management. That is a stated counterfactual price on one placement, not a record of losses avoided.

The common outcome is a modeled saving that never reaches a quote. At Graveline Bay on Dauphin Island, Alabama, The Water Institute and Munich Re America modeled marsh restoration cutting average annual loss on 30 to 40 nearby homes by 9% to 18% by zone. That is a modeled loss, not a premium, and the premium change was not quantified because the carriers disagreed. Sarah Conway, formerly WTW's ecosystem resilience lead, puts the usual result plainly: "A mangrove belt may not materially lower premiums, but it can prevent market exit." Keeping the policy often comes first ([keep the policy before you cut the price](/guide/keep-the-policy-before-you-cut-the-price?from=guide)).

## who this offer is for

The buyer is whoever carries the loss across many structures under one piece of ground. 

| buyer | what they carry under the landscape | their door |
|---|---|---|
| A carrier writing many policies under one ridge, floodplain or coast | Claims on its book in that zone, and the reinsurance cost of that concentration | [Insurers](/solutions/insurers?from=guide&topic=lower-your-insurance-bill) |
| A state FAIR plan (the state's insurer of last resort) | The policies private carriers left, often the riskiest in the zone | [Insurers](/solutions/insurers?from=guide&topic=lower-your-insurance-bill) |
| A county or flood district | Suppression, roads, recovery, and the homes it must keep insurable to keep its tax base | [Governments](/solutions/governments?from=guide&topic=lower-your-insurance-bill) |
| An HOA that owns common forest or open space | Its own master policy. Members' policies under the same trees are carried by their own carriers, so the HOA pays per structure it serves | [Services](/services?from=guide&topic=lower-your-insurance-bill) |

Each one sees only part of the loss, which is why the work goes unfunded ([the free rider is standing on a keystone parcel](/guide/the-free-rider-is-standing-on-a-keystone-parcel?from=guide)). Where the ridge is public land, the agency or tribe that manages it has to agree to the treatment, and the plan names them as a co-payer or partner.

## start with your own number

1. **Policies in force under the landscape.** The count of policies, or structures, in the area the forest, floodplain or marsh protects.
2. **Claims history in that zone.** What the book has paid there, by peril and year.
3. **The modeled expected annual loss.** A carrier has its own catastrophe model. Anyone can get a first read of FEMA's National Risk Index expected annual loss, by peril, for the census tract at a point: [open your place](/place?from=guide).

The FEMA figure is tract-level and modeled: a lead, not one policy's loss, and not the loss the work would avoid.

## what we deliver, and what it costs

These are the prices on our rate card. The analysis and the deployment are on [services](/services?from=guide&topic=lower-your-insurance-bill); the program is quoted on request. The exact figure sits inside the range, by the size of the town or region.

| service | price | what you get |
|---|---|---|
| Regional natural asset analysis | $10,000–$15,000 | Every natural asset the area depends on, valued together: what each holds, what it provides, who depends on it, and what it costs to lose |
| Ensurance deployment | $15,000–$50,000 | Done for you: the valuation, the lines minted, the payors mapped and asked, the MRV (measurement, reporting and verification) clause, and the steward named on the split |
| The program | $1,000–$4,000 a month | 12 to 24 months of certificates issued, MRV run, payors convened, quarterly reports. Payments into the certificates are on top |

The fees above pay for our work. The per-policy shares go to the place's account and the steward on the split.

The [insurers page](/solutions/insurers?from=guide&topic=lower-your-insurance-bill) lists the services behind them: wildfire, flood and erosion resilience; MRV and monitoring; and regional resilience planning. We coordinate fire behavior and flood modeling with technical partners.

## the work it funds, and where the money lands

The payment funds loss control at the source:

- **Fuel treatment** on the ridge: thinning, prescribed fire, defensible space on the edge.
- **Floodplain storage** above town: reconnected side channels, a field paid to flood, riparian buffers.
- **Marsh and living shoreline** in front of the coast: restored edge that cuts wave height before the first row of houses.

The money lands in the place's account through a certificate. Where one owner holds the treated ground and works with us (an HOA's common forest, a county's open space), the certificate is an ensurance policy on that natural asset (a certificate for one titled asset, not an insurance policy), and the payments attach to it. Where the landscape spans many owners, it is a **line**: it funds stewardship across the boundaries, without a claim on any one parcel. Either way the account records condition: acres treated, fuel loads, floodplain storage, marsh extent. That record is what a carrier's model needs before it can credit anything. The split pays the steward and crews ([how a keystone parcel gets paid](/guide/how-a-keystone-parcel-gets-paid?from=guide)).

## the unit: a share per policy in force

The buyer pays a **share per policy in force under the landscape**. A share here is a slice of the avoided loss, not an equity stake. A county or HOA can pay **per structure in the serviceshed** instead (every structure the ground protects). The size comes from one rule:

**The annual payment is at most the annual expected loss the buyer no longer carries.** Or compare present value of payments with present value of avoided loss. Never compare an annual payment with a multi-year present value.

The reduction comes from a stated method: fire-behavior modeling for the ridge, a flood or surge model for the floodplain or marsh, or a rerun of the carrier's own catastrophe model with the treated ground in it. An illustrative sizing, round numbers only:

| step | illustrative figure |
|---|---:|
| Policies in force under the ridge | 2,000 |
| The carrier's modeled wildfire expected annual loss on that book | $1,500,000 |
| Reduction the treatment plan supports, by a stated method | 20% |
| Expected loss the carrier no longer carries, per year | $300,000 |
| **Ceiling per policy in force, per year** | **$150** |
| Share paid at 50% of the ceiling | $75 per policy per year ($150,000 a year) |

The $150 is a ceiling, not a price. The carrier keeps part of the saving. The deductible and uninsured loss stay with homeowners; roads and suppression stay with the county. Each is a separate co-payer with its own number, and each consequence is counted once.

Now test it against the cost of the work, in present value. Say the ridge work costs $2 million upfront and removes that $300,000 a year for ten years, benefits at year-end, no residual value, 5% discount rate, all illustrative. The benefits are worth about $2.32 million today, not $3 million. Net present value is about $317,000, and the benefit-cost ratio is about 1.16: thin, but positive. The work breaks even at about $259,000 a year, about $130 per policy across 2,000 policies. The $150 ceiling clears that by about $20. At the $75 share the carrier covers $150,000 of it, and co-payers carry the other $109,000 or so. The question that decides the deal is what supports the 20%.

## where this stands

No ensurance payment has lowered a premium yet, and no carrier has filed a credit for it. The first case is still to be built: one named landscape, one anchor buyer with policies in force under it, and co-payers beside it. Tahoe Donner is the field's evidence that a priced landscape credit can happen. It is not ours.

What exists today: [wildfire-resilience.syndicate](/wildfire-resilience.syndicate?from=guide) is a live agent for this work. A line for one landscape would sit under it, and none is minted yet. The suggest door starts one, and a person reviews it: [suggest an insured landscape wildfire line](/specific/create?mode=suggest&agent=wildfire-resilience.syndicate&name=insured%20landscape%20wildfire%20line&from=guide). A flood or marsh line would start the same way: [suggest an insured floodplain line](/specific/create?mode=suggest&agent=flood-resilience.syndicate&name=insured%20floodplain%20line&from=guide).

A credit to your own policyholders stays your filing. Colorado's HB25-1182 requires admitted carriers and its FAIR Plan to consider property and community mitigation in their models or offer discounts. Ensurance funds the work and the record. The carrier decides what to credit.

## the door

1. Bring your number: policies in force, claims history, expected annual loss.
2. Pick the first step on the [services page](/services?from=guide&topic=lower-your-insurance-bill): the regional analysis, or the full deployment.
3. [Start the conversation](/contact?from=guide&topic=lower-your-insurance-bill) with the landscape, the book and the co-payers you already know.

This is not insurance, legal or tax advice.

## frequently asked questions

### how can you reduce property insurance costs?

Shop, retain or shrink. Shopping and a higher deductible move your price. Shrinking the expected loss changes the risk for everyone under the same hazard; a carrier may or may not credit it. A carrier, county, HOA or FAIR plan with many policies under one landscape can fund the fuel treatment, floodplain or marsh work through ensurance, at a share per policy in force. For one property and the payor side, [protect your property by paying what protects it](/guide/protect-your-property-by-paying-what-protects-it?from=guide) walks through it.

### is there an insurance discount for mitigation?

Yes, for some measures. Structure credits are common, and the NFIP's Community Rating System discounts flood policies 5% to 45% by community class. It is a community-wide discount and does not change assessed risk. Landscape credits are rare. Tahoe Donner's 2025 placement is the clearest priced case.

### will ensurance lower my premium?

Not directly, and not yet. Ensurance funds the loss control and records its condition; a carrier credits it only when it is measured, rated at the right scale and lasts. No ensurance-funded credit exists today.

### how much would a carrier pay per policy?

A carrier should pay no more per year than the expected loss it no longer carries on that policy. In an illustrative case, the ceiling is $150 per policy on a $300,000 annual reduction across 2,000 policies. A real figure comes from the carrier's own model and a stated method.

## sources

[WTW, April 2025](https://www.wtwco.com/en-cm/news/2025/04/willis-and-the-nature-conservancy-launch-first-of-its-kind-wildfire-resilience-insurance): Tahoe Donner wildfire resilience insurance, $2.5 million cover, 1,345 acres, premium 39% lower and deductible 89% lower than without recognizing forest management

[The Nature Conservancy](https://www.nature.org/en-us/newsroom/ca-wildfire-resilience-insurance0/): The same placement, with UC Berkeley CLEE and Globe Underwriting

[The Water Institute, Graveline Bay insurance pilot](https://thewaterinstitute.org/graveline-bay-insurance-pilot): Modeled average annual loss 9% to 18% lower by zone on 30 to 40 homes; premium change not quantified

[Sarah Conway, The Risk & Resilience Ledger](https://riskandresilienceledger.substack.com/p/ecosystems-and-the-limits-of-price): "A mangrove belt may not materially lower premiums, but it can prevent market exit"

[FEMA, Community Rating System](https://www.fema.gov/flood-insurance/rules-legislation/community-rating-system): 5% to 45% discount by class

[FEMA, National Risk Index expected annual loss](https://hazards.fema.gov/nri/expected-annual-loss): The tract-level modeled figure behind the place door

[Colorado Division of Insurance bulletin on HB25-1182](https://content.govdelivery.com/accounts/CODORA/bulletins/42e8cde): Mitigation in models or discounts, for admitted carriers and the FAIR Plan

[FEMA, benefit-cost analysis](https://emilms.fema.gov/is_1021/groups/80.html): Comparing mitigation cost with expected benefits in present value

## the series

1. [how to lower insurance premiums when the risk is outside your fence](/guide/how-to-lower-insurance-premiums?from=guide)
2. [how insurance premiums are calculated, and the slice you can move](/guide/how-insurance-premiums-are-calculated?from=guide)
3. [does mitigation lower insurance premiums](/guide/does-mitigation-lower-insurance-premiums?from=guide)
4. [keep the policy before you cut the price](/guide/keep-the-policy-before-you-cut-the-price?from=guide)
5. [the carrier's cheapest claim](/guide/the-carriers-cheapest-claim?from=guide)
6. [share the premium saving with the land](/guide/share-the-premium-saving-with-the-land?from=guide) (this post)

The sister series covers every other bill: [how to save money with ensurance](/guide/how-to-save-money-with-ensurance?from=guide). For the other side of the same ground: [how to make money with ensurance](/guide/how-to-make-money-with-ensurance?from=guide).