Buildings insurance for rental properties is not simply a matter of choosing the cheapest policy. The key distinction between a domestic policy and a landlord policy — and the consequences of getting it wrong — can mean the difference between a claim being paid and a total uninsured loss. Every landlord should hold a landlord-rated buildings insurance policy on every property they let.
Underinsurance is the second most common failure in landlord buildings insurance. The sum insured must reflect the rebuild cost (not the market value) of the property. In areas where construction costs have risen sharply, an under-insured property may receive only a fraction of the actual loss on a claim — a gap that can run into hundreds of thousands of pounds on a total loss.
Why a domestic buildings policy is not suitable for rental properties
Using the wrong type of policy can invalidate cover entirely:
- Domestic buildings insurance policies require the property to be occupied by the owner as their main residence. Letting the property to tenants is a material change of circumstances that voids the policy
- A claim on a domestic policy for fire, flood, or tenant damage at a rental property will typically be declined in full — the insurer will argue that the policy terms were not met
- Landlord buildings insurance is specifically rated for rental use — it covers the additional risks associated with letting (damage by tenants, void periods, higher liability exposure) that domestic policies exclude
- Buy-to-let mortgage lenders almost universally require buildings insurance as a mortgage condition. Using a domestic policy that does not cover rental use also breaches the mortgage terms
- HMO properties: some landlord buildings insurers exclude HMO use. Ensure your policy explicitly covers HMO use if the property is licensed as an HMO — and declare the HMO status accurately when obtaining quotes
What landlord buildings insurance covers
The standard cover provided by a landlord buildings policy:
- Structure and fixed fittings: damage from fire, flood, storm, burst pipes, subsidence, vandalism, and malicious damage. Covers the property structure (walls, roof, floors) and fixed fittings (kitchen units, bathroom suites, built-in wardrobes)
- Property owners' liability: covers the landlord's legal liability if a tenant or visitor suffers personal injury due to a defect in the property — typically £2–5 million. This is essential cover for any landlord
- Loss of rent: covers rent lost if the property becomes uninhabitable following an insured event (fire, flood). The claim period is typically 12–24 months — check the period before purchasing
- Malicious damage by tenants: often excluded from standard policies but available as an add-on. Important for landlords in challenging rental markets or where tenant selection risk is higher
- Landlord's contents: for furnished properties, a separate landlord's contents section (or standalone policy) covers fixtures and fittings you supply — not the tenant's own belongings
Calculating the rebuild cost — avoiding underinsurance
Insure for the rebuild cost, not the market value:
- The sum insured must reflect the rebuild cost — what it would cost to demolish and rebuild the property from scratch, including professional fees and site clearance
- Market value ≠ rebuild cost: in many areas the market value exceeds the rebuild cost. In some areas (inner London, conservation areas), the rebuild cost exceeds market value due to specialist construction requirements
- Underinsurance consequence: if you insure for less than the rebuild cost and suffer a total loss, the insurer applies 'average' — paying only the proportion of the claim corresponding to your cover percentage. Insuring for 50% of rebuild cost means only 50% of any claim is paid
- BCIS rebuild cost calculator: the Building Cost Information Service publishes rebuild cost data by property type and region. Use the BCIS online calculator or ask a surveyor to confirm the rebuild cost
- Review annually: rebuild costs increase with construction cost inflation. Review your sum insured each year — most policies offer index-linking but verify the index is keeping pace with actual rebuild costs
Void period conditions — what the policy requires when the property is empty
Failure to comply with void conditions can invalidate a claim:
- Most landlord buildings policies impose conditions during void periods (property empty between tenants) — typically requiring inspection at least every 7–14 days, water turned off at the mains, and minimum heating maintained in cold weather
- Failure to comply can result in a claim being declined — for example, if a burst pipe causes significant damage during a void period and the property was not inspected as required
- Notify your insurer before a void period begins: some policies require notification of expected voids. Failing to notify can affect coverage
- Extended void cover: if the property will be void for more than 30–60 days (e.g. during major refurbishment), notify your insurer and check whether specialist unoccupied property insurance is needed
- Security during voids: most insurers require the property to be properly secured. A break-in through an unsecured window during a void period may result in a reduced or declined claim
Making a landlord buildings insurance claim
Follow the claims process carefully to avoid delays or declined claims:
- Notify immediately: contact your insurer as soon as possible after the damage occurs. Most policies have a notification requirement — delayed notification can affect the validity of the claim
- Document damage: photograph all damage before any emergency repairs. Emergency repairs to prevent further damage (boarding a broken window, turning off a burst pipe) are usually covered — contact the insurer before carrying out non-emergency repairs
- Loss adjuster: for large claims, the insurer will appoint a loss adjuster to assess the damage and agree the repair cost. You can appoint your own public loss adjuster for complex or large claims
- Tenant belongings: make clear to the tenant that their personal belongings are not covered by the landlord's policy. Tenants should hold their own contents insurance
- Rebuild timeline: if the property is uninhabitable following a major loss, confirm with the insurer that loss of rent cover will operate for the required period and agree a repair timeline
Frequently asked questions
Do I need buildings insurance if my property is mortgage-free?+
There is no legal obligation to insure a mortgage-free property — but operating without buildings insurance is significant unmanaged risk. A fire, flood, or structural collapse that makes the property uninhabitable creates a loss of rental income and a potentially six-figure rebuild cost. For most landlords, buildings insurance is one of the most cost-effective forms of risk management available. The annual premium is a deductible revenue expense for tax purposes.
Is my leaseholder buildings insurance (from the freeholder) sufficient for my buy-to-let flat?+
Possibly — but check the details. If you own a leasehold flat, the freeholder typically insures the building structure. This cover may be sufficient for the structure itself. However, you may still need: (1) landlord's liability cover for personal injury claims by tenants; (2) loss of rent cover if the property becomes uninhabitable; (3) landlord's contents cover for any fixtures and fittings you supply. Review the freeholder's policy schedule carefully and obtain top-up cover for any gaps.
What does 'malicious damage by tenants' cover, and why is it often excluded?+
Malicious damage by tenants covers deliberate damage caused by your tenants — beyond normal wear and tear or accidental damage. This includes things like holes punched in walls, fixtures deliberately removed, or deliberate flooding. Standard landlord policies exclude this because tenant-caused malicious damage is considered a higher-probability and partly controllable risk (through tenant selection and referencing). Specialist add-on cover or standalone malicious damage policies are available. If your deposit is insufficient to cover potential tenant damage, malicious damage cover is worth considering.
How does loss of rent cover work if my property is flooded?+
If the property becomes uninhabitable following an insured event (flood, fire, etc.), loss of rent cover pays the rent that would have been received during the period the property is uninhabitable — up to the cover period limit (typically 12–24 months). The insurer will typically require evidence of the pre-event rent level (tenancy agreement) and confirmation from a surveyor or loss adjuster that the property is uninhabitable. Loss of rent cover does not pay out for ordinary void periods between tenants — only for voids caused by an insured event.