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A property owner who sells a freehold (whether commercial premises, residential block, mixed-use development, ground lease portfolio, or single house) parts with the asset but rarely parts with all the liabilities that flowed from owning it. Misrepresentations made during the sale process may give rise to claims for years; latent defects in the property may emerge after sale and be referable to acts during the seller’s ownership; leaseholders who held leases during the seller’s ownership may have surviving claims; environmental contamination identified after sale may be traced to the seller’s period; for residential blocks falling within the Building Safety Act 2022 regime, the post-sale liabilities are extensive and continuing.
This guide addresses the property owner’s run-off question — what residual liabilities continue after sale, what insurance options exist, the warranty-and-indemnity (W&I) market dimension, and the specific issues for landlords of residential blocks falling within the BSA framework.
General guidance only — your specific circumstances require specialist advice. Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority, FRN 724952.
Five streams of liability can survive a property sale.
Misrepresentation under the Misrepresentation Act 1967. Pre-contractual statements made by or on behalf of the seller during sale negotiations that turn out to be false can give rise to claims by the buyer. Section 2(1) provides liability for non-fraudulent misrepresentation; section 2(2) allows the court to award damages in lieu of rescission. Limitation: 6 years from the misrepresentation under section 5 of the Limitation Act 1980. Common in property sales for misstatements about service charge history, building maintenance, planning compliance, EPC ratings, leases and tenancies.
Contractual warranties in the sale contract. Standard property sale contracts include warranties (e.g. the Standard Commercial Property Conditions or the SCS for residential). Specialist negotiated contracts (particularly for institutional asset sales) include detailed warranty packages. Limitation: typically capped by the contract (commonly 2–7 years for general warranties, longer for fundamental warranties). Survive completion.
Latent defects in the property. Defects in the property building, services or systems that were present during the seller’s ownership and manifest after sale. The buyer may pursue under the contract (if a warranty is breached), under negligence (if the seller’s act caused the defect), or under specific statutory regimes (Defective Premises Act, Sale of Goods principles for fixtures).
Leaseholder and tenant claims. Where the seller was the landlord and leaseholders/tenants had claims accruing during the seller’s ownership, those claims may survive the sale to the new freeholder. Service charge disputes, breach of repair covenant, breach of quiet enjoyment, harassment, breach of any specific leasehold-protection statute — all may engage the historic landlord even after sale.
Environmental contamination. Part 2A of the Environmental Protection Act 1990 imposes liability on the appropriate person for remediation of contaminated land. The original polluter (Class A) is preferred over the current owner/occupier (Class B). The seller as historic owner may face Class A or Class B liability depending on the nature of the contamination and the role in causing or knowingly permitting it.
A property owner at sale typically holds:
Property owners’ liability insurance. Public liability for the property as freehold owner. Occurrence-based; historic incidents during ownership covered by historic policies.
Property damage / buildings insurance. Insures the building. Transfers with sale or terminates.
Loss of rent / business interruption. Insurance for rental income loss. Terminates with sale.
Directors’ and officers’ (where the property owner is a company). Claims-made; bind run-off at company cessation if separate from property sale.
Specific specialist covers. Contractor’s all risks during refurb; latent defects insurance for new build; environmental impairment liability for industrial sites.
Property owners’ liability — historic incidents continue covered. An accident on the premises in 2020 during the seller’s ownership remains covered by the 2020 property owners’ liability policy. The buyer’s subsequent ownership does not affect historic cover.
Loss of rent — terminates. The seller no longer earns rent; the cover ends.
Property damage — terminates or transfers. Usually terminates on sale; buyer arranges new cover. Where the policy permits assignment, it transfers.
Misrepresentation and warranty claims — uncovered by traditional property cover. This is the specific run-off problem.
The principal market response to the seller’s post-sale exposure is warranty and indemnity insurance (W&I) — a specialist product covering the seller’s (or buyer’s) exposure under the warranties and indemnities in the sale contract.
Seller-side W&I. Covers the seller for claims by the buyer for breach of warranty or indemnity. Typically bound by larger sellers who are exiting and need certainty.
Buyer-side W&I. Covers the buyer for the same exposure — meaning the buyer pursues the insurer instead of the seller. Now the dominant market form because it removes the need to chase the seller post-sale and decouples the buyer’s recovery from the seller’s solvency.
Typical structure. - Limit: usually a percentage of the deal value (often 10–30%). - Excess: typically 0.5–1.0% of enterprise value. - Period: usually 7 years for fundamental warranties, 2 years for general warranties — matching the contractual limitation. - Pricing: 1–2.5% of the limit (annual equivalent), paid as a single premium. - Exclusions: known matters, specific identified risks, criminal acts, penalties, intra-deal liabilities.
Use in property deals. W&I is most common in deals above £10m enterprise value. Below that, premium cost becomes disproportionate; above £50m, W&I is near-standard. For smaller deals, the conventional position is that the seller retains exposure within an agreed cap.
For property owners of leasehold residential blocks, leaseholder claims that accrued during the seller’s ownership are a distinct exposure.
Service charge claims. Leaseholders can pursue the historic landlord for over-charges, improperly-incurred costs, breach of consultation requirements under section 20 of the Landlord and Tenant Act 1985. Limitation: 6 years for breach of statutory duty under section 9 LA 1980; equity-based claims may extend further.
Breach of repair covenant. Where the landlord failed to maintain in breach of covenant, leaseholders’ claims may include damages for diminution in value, distress, and (in serious cases) the cost of works.
Section 20 ZA consultation breaches. Where the landlord failed to consult on qualifying long-term agreements or qualifying works, the landlord cannot recover the costs through the service charge. Historic costs improperly recovered may be repayable.
Quiet enjoyment / harassment. Common-law and statutory protections; surviving claims possible.
Building Safety Act 2022 claims. For residential blocks within the BSA framework, leaseholder claims under the Act survive the sale of the freehold. The seller as the landlord during the relevant period may face residual liability.
Buyer-side indemnity. The new freeholder typically takes on leaseholder management. The seller’s residual exposure is for historic acts/omissions; the buyer’s exposure is for current acts/omissions. The boundary can be contested.
For residential blocks of 18m+ or 7+ storeys with at least two residential units (Higher-Risk Buildings under the BSA), the post-sale liability profile is extensive.
Section 124 remediation contribution orders. The First-tier Tribunal can make remediation contribution orders against the developer, the current landlord, and “associated persons” (including former landlords) requiring contribution to remediation of relevant defects. Liability extends beyond the conventional sale-and-extinguishment model.
The qualifying lease protection. The BSA 2022 schedule 8 protects qualifying leaseholders from contribution to remediation costs for unsafe cladding and certain other relevant defects. The cost of remediation falls on landlords and ultimately on developers and “associated persons”.
The chain of associated persons. Section 121 defines “associated persons” widely, including those who were associated at the date the building completed development. Historic property owners and their corporate associates may face residual liability years after sale.
Insurance treatment. Conventional property owners’ liability does not contemplate BSA remediation contribution liability. Specialist cover is emerging but not standard. Indemnification from the buyer or from successor freeholders may be the practical protection; financial structures (escrow, retentions, parent guarantees) are often deployed.
For sellers of HRB-classified residential blocks, the BSA dimension is the most consequential post-sale exposure and the least well-protected by conventional insurance.
Property used for any industrial or commercial purpose during the seller’s ownership may face Environmental Protection Act 1990 Part 2A liability.
The contaminated land regime. Local authorities (or, in serious cases, the Environment Agency) can identify land as contaminated and serve a remediation notice on the “appropriate person”.
Class A — the polluter. The original polluter — the party that caused or knowingly permitted the contamination — has primary liability. The seller as historic operator may be Class A for contamination during their ownership.
Class B — the current owner/occupier. Where Class A cannot be identified or pursued, the current owner/occupier picks up.
The transfer of liability on sale. The seller’s Class A liability does not transfer to the buyer automatically. The buyer’s Class B liability arises from current ownership. The seller’s historic Class A status is preserved.
Environmental impairment liability (EIL). Specialist cover for historic and current pollution. Run-off EIL is available at sale. Typical 5–15 year run-off period.
The information statement (Part 2A Schedule 3). Where contamination is known at sale, the seller’s disclosure obligation and the buyer’s knowledge can affect future liability allocation. Documentation is critical.
A regional investor sells a commercial property portfolio (4 office buildings, 2 retail parks, 8 industrial units) for £85m. The seller is a UK limited company in a corporate group; the sale is via a share sale (the SPV holding the properties is sold) rather than asset sale.
Sale structure. Share sale. Seller is the parent of the SPV; the parent retains liability under the sale agreement; the SPV’s residual liabilities transfer with the company to the buyer.
Warranty package. Detailed institutional sale warranty package — title, planning, environmental, leases, service charges, defects, EPCs, BSA classification.
W&I insurance. Bound by the seller as buyer-side W&I. £15m limit (17% of EV), £500k excess, 7-year fundamental / 2-year general. Premium £225k single premium.
Specific identified risks. - One office building has known cladding (not HRB-classified). Specific indemnity outside W&I. - One industrial unit has historic contamination (Class A unresolved). Specific environmental indemnity outside W&I, supported by standalone EIL run-off. - Service charge dispute open at one retail park. Specific carve-out from W&I; seller indemnifies.
Run-off binding. - EIL run-off on the contaminated industrial site: 10 years, £5m limit, £45k single premium. - Property owners’ liability historic policies remain in force. - Director-level D&O of the seller parent for the deal year and beyond bound for 6 years post-sale, £36k single premium.
Total run-off / W&I cost. Approximately £306k. For an £85m deal with substantial identified risk, this is proportionate.
For property owners contemplating sale:
Engage W&I broker early in the sale process — at least 6 weeks before exchange. W&I bound after exchange is rare and expensive.
Map specific identified risks separately from the warranty package. Cladding, contamination, planning, leaseholder disputes — each may need a tailored solution.
For HRB-classified residential blocks, the BSA dimension dominates. Specialist legal advice on associated-person exposure is essential. Insurance solutions are limited and developing.
Maintain historic property owners’ liability policy archive. Pre-sale, document every policy held during ownership.
For corporate sellers, bind D&O run-off post-sale to cover the deal year and the limitation period for any deal-related director liability.
For environmental exposure, EIL run-off at sale is the standard. 10-year minimum for contaminated industrial sites.
Document service charge history and section 20 consultation compliance for residential blocks. Leaseholder claims often turn on historic documentation.
If selling part of a larger portfolio (single building from a multi-asset estate), confirm policy responses to the sold asset — the multi-asset policy may not respond after sale.
Q1. Do I need W&I if I’m selling? Not strictly required, but increasingly standard for deals above £10m. Below that, the conventional position with capped seller indemnity is common.
Q2. How does buyer-side W&I work for the seller? The buyer-side W&I is bought by the buyer (typically from agreed sale proceeds), insuring the buyer against breach of warranty. The seller’s exposure is effectively reduced because the buyer cannot reasonably claim against the seller for matters covered by the W&I.
Q3. What about known issues — does W&I cover those? No. Known matters are excluded. Specific indemnities outside W&I cover known issues.
Q4. How long does the W&I cover last? Typically 7 years for fundamental warranties (title, capacity, tax), 2 years for general warranties. Matching the contractual limitation.
Q5. Can I extend W&I cover after binding? Generally no. The premium is single-payment; the period is fixed.
Q6. Does W&I cover environmental contamination? Usually only to the extent of the environmental warranty (e.g. “no current Part 2A liability”). Standalone EIL is typically also required for known or historic contamination.
Q7. What about the leaseholder claims that surface after sale? The buyer-side W&I responds to breach of the lease-related warranties. Direct leaseholder claims against the historic landlord (not via warranty) are not covered; the seller’s property owners’ liability historic policies may respond.
Q8. Does the buyer’s purchase price reflect the warranty position? Usually yes — significant warranty exposure or refusal to give warranties reduces the price. W&I removes this discount because the buyer is protected.
Q9. What about the BSA 2022 future remediation contribution exposure? Conventional W&I covers warranties about current BSA position; future RCO exposure is harder to address. Specific indemnity, escrow, or parent guarantee structures may be required.
Q10. Can I get W&I for a sale that has already completed? “Synthetic W&I” is emerging — post-completion cover bought by the buyer. Pricing and availability vary.
Q11. What about VAT and SDLT exposure? Tax warranties are typically within W&I scope subject to specific tax-warranty wording. Tax indemnities may be separately structured.
Q12. How does property owners’ liability respond to a 2020 incident in a building I sold in 2022? The 2020 policy responds to the historic incident. The 2022 sale does not affect the historic policy’s response to historic incidents.
Misrepresentation Act 1967. Limitation Act 1980. Landlord and Tenant Act 1985. Defective Premises Act 1972 (as amended by BSA 2022). Building Safety Act 2022, especially sections 116–125 and Schedule 8. Environmental Protection Act 1990, Part 2A. Standard Commercial Property Conditions (3rd edition). Standard Conditions of Sale (5th edition). Various property-sector legal commentary on W&I market practice. Quainoo v Brent LBC (leaseholder claim authority). ICAEW guidance on W&I tax treatment.
Index: Commercial Run-Off Deep-Dives Deep-Dive 1: Commercial run-off architectural overview Deep-Dive 2: Construction contractor run-off Deep-Dive 4: D&O run-off after dissolution
Disclaimer: General guidance only. Specific property sale and run-off decisions require specialist advice. Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority, FRN 724952.
Apex Insurance Brokers serves UK professional services firms and commercial businesses. Call 0117 325 0027, email hello@apexinsurancebrokers.co.uk, or request a quotation.
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