The Upper Tribunal’s decision in Mountview Estates Plc v W8 Property Ltd [2026] UKUT 196 (LC) provides useful guidance on the condition in which a flat is to be valued when calculating the premium payable for a statutory lease extension.
The case concerned a flat which both parties’ valuers described as “uninhabitable”. The landlord argued that the valuation should nevertheless assume that the flat had been brought up to a clean, modern and readily marketable standard because the lease required the tenant to keep it in “good tenantable repair”.
The Upper Tribunal rejected that argument.
A covenant to repair does not require a tenant to modernise a property, replace old-fashioned but functioning equipment or bring a dated flat up to current market expectations. Before a repairing obligation is engaged, there must first be evidence of physical damage or deterioration.
That distinction had a significant effect on the lease extension premium.
The background
The property was Flat 9, Kensington Court Gardens, held under a 70-year lease granted in November 1960.
A notice under section 42 of the Leasehold Reform, Housing and Urban Development Act 1993 was served on 13 March 2023, proposing a premium of £2,081,150. The landlord served a counter-notice seeking £3,762,000.
The leaseholder subsequently acquired the lease, with the benefit of the section 42 notice, for £985,000.
The premium was referred to the First-tier Tribunal. By the time of the hearing, the principal area of disagreement was the freehold vacant possession value of the flat and, in particular, the adjustments which should be made to the comparable sales relied upon by the valuers.
The First-tier Tribunal preferred the leaseholder’s valuation evidence. The landlord appealed to the Upper Tribunal.
An “uninhabitable” flat
Both valuers described the flat as uninhabitable.
That description might initially suggest that the flat could not have been in good tenantable repair. The landlord’s case was that the statutory valuation should assume compliance with the tenant’s repairing covenant and that this required the flat to be valued in a considerably improved condition.
The landlord’s valuer treated good tenantable repair as requiring matters such as:
· clean and neutral decoration;
· a compliant electrical installation;
· basic fitted kitchen appliances;
· modern bathroom fittings; and
· an efficient heating system.
On that basis, the landlord argued that limited deductions should be made when comparing the flat with modernised properties in the building and surrounding area.
The leaseholder argued that this approach confused repair with improvement.
The fact that a flat is dated, poorly decorated or unattractive to a modern purchaser does not necessarily mean that it is out of repair. Equally, the fact that it might require substantial expenditure before a purchaser would choose to occupy it does not mean that all of that expenditure falls within the tenant’s repairing covenant.
The statutory valuation assumption
The parties agreed that the valuation should proceed on the basis that the tenant had complied with the covenant to keep the flat in good tenantable repair.
That approach reflects the principle that a leaseholder should not be permitted to reduce the premium by relying upon their own breach of covenant.
However, the critical question was what compliance with the repairing covenant actually required.
Schedule 13 to the 1993 Act does not contain an express assumption that the flat is in repair. The Upper Tribunal nevertheless proceeded on the agreed basis that an appropriate assumption should be made that the tenant had complied with its obligations.
The assumption did not, however, entitle the landlord to value the flat as though it had been modernised.
Repair requires damage or deterioration
The Upper Tribunal confirmed the established distinction between repair and improvement.
A repairing covenant is not engaged merely because something is old, inefficient or outdated. There must first be damage or deterioration from a previous physical condition.
The age of a kitchen or bathroom is therefore not enough. Nor is the fact that an electrical installation does not provide the number of sockets a modern occupier might prefer. An old but functioning appliance or fitting does not have to be replaced simply because a purchaser would regard it as obsolete.
The Tribunal accepted that the standard of repair required may be affected by the age, character and location of the property. A substantial flat in Kensington may have to be repaired to a different standard from a modest property elsewhere.
That principle, derived from cases such as Proudfoot v Hart, concerns the standard to which an item must be repaired once disrepair has arisen. It does not remove the need to establish actual damage or deterioration in the first place.
The landlord’s case failed because there was no satisfactory evidence that the fittings, services or installations were broken or no longer functioning.
The flat may have been neglected and commercially unattractive, but that did not establish actionable disrepair.
Does “uninhabitable” mean out of repair?
The decision demonstrates that the word “uninhabitable” must be treated with care.
A flat may be regarded by valuers or purchasers as uninhabitable because it is extremely dated, has no modern kitchen or bathroom, is undecorated or lacks amenities now expected in a high-value property.
Those matters may substantially reduce its market value.
They do not automatically establish a breach of a repairing covenant.
The Upper Tribunal noted that the evidence did not adequately explain why the flat had been described as uninhabitable. There was no identified defect, broken service or non-functioning item from which the Tribunal could conclude that repair was required.
The absence of modern amenities and the need for updating were therefore relevant to market value, but they could not simply be disregarded by assuming that the tenant was obliged to modernise the flat.
The comparable evidence
The leaseholder’s valuer relied on the sale of the adjoining flat, which was in a similarly unmodernised condition, without making a condition adjustment.
For modernised comparable flats, the leaseholder’s valuer applied a deduction of 17.5% to reflect the subject flat’s dated and unmodernised condition.
The landlord’s valuer proposed considerably smaller deductions, based on the assumption that compliance with the repairing covenant would leave the subject flat in a cleaner, more modern and readily occupiable state.
The First-tier Tribunal preferred the leaseholder’s approach.
The Upper Tribunal found no error in that conclusion. The First-tier Tribunal was entitled to treat the adjoining unmodernised flat as the closest comparable and to make a substantial deduction from modernised comparables.
The landlord’s approach involved assuming works which went beyond repair and amounted, in substance, to modernisation.
The appeal was therefore dismissed and the First-tier Tribunal’s valuation of the flat, and its resulting determination of the lease extension premium, remained in place.
Why the case matters
The case is important because the condition assumption can have a substantial effect on the premium payable for a lease extension.
A landlord cannot simply point to a repairing covenant and ask the Tribunal to assume that an old or neglected flat has been brought up to modern market standards.
The correct approach is more disciplined:
1. Identify the precise repairing covenant.
2. Identify the elements of the property which are said to be damaged or deteriorated.
3. Establish the condition from which they have deteriorated.
4. Determine the standard of repair required by the covenant.
5. Distinguish those works from decoration, modernisation and improvement.
Only the works properly required by the repairing covenant should be reflected in the valuation assumption.
At the same time, a leaseholder cannot obtain a lower premium by relying upon genuine disrepair for which they are responsible. Where damage or deterioration is proved, the valuation must assume that the necessary repairs have been undertaken.
The result will therefore depend heavily on the factual and expert evidence.
Evidence will be essential
The case also highlights the importance of properly documenting the condition of the flat.
A general description such as “uninhabitable”, “poor condition” or “in need of complete refurbishment” may be insufficient. Those expressions often combine several different concepts:
· actual disrepair;
· lack of decoration;
· dated but functioning fittings;
· obsolescence;
· non-compliance with modern standards; and
· works which a purchaser would choose to undertake.
A valuer seeking to adjust comparables should explain which of those factors is present and how the adjustment has been calculated.
Where actual disrepair is alleged, surveyor’s evidence, photographs, testing of services and a schedule of condition may be required. Without that evidence, a Tribunal may be unable to infer that old or neglected items are actually defective.
Wider implications for landlords and tenants
Although the decision arose in a statutory lease extension claim, its reasoning has wider relevance.
Disputes about repairing covenants commonly arise at the end of commercial leases, in service charge claims and in claims for damages or specific performance.
The same underlying distinction applies: repair is not synonymous with improvement.
A covenant to keep premises in good tenantable repair may require a high standard where repair is necessary, particularly in an expensive or prestigious building. It does not, without suitable wording, require the tenant to replace functioning items merely because they have become old-fashioned or fall below the expectations of the current market.
Landlords and valuers should therefore be cautious about treating refurbishment costs as though they were all costs of repair.
The practical lesson
The outcome in Mountview Estates Plc v W8 Property Ltd did not depend upon any novel principle of enfranchisement law. It depended upon applying established repairing covenant principles carefully to the valuation evidence.
The flat was agreed to be uninhabitable, but that label did not establish that it was out of repair.
The landlord’s difficulty was that its proposed valuation assumed not simply that the tenant had complied with the lease, but that the flat had been modernised and made attractive to a contemporary purchaser.
That went too far.
The decision is a useful reminder that, in lease extension valuation, a tenant must be assumed to have repaired what is broken—but not to have modernised what is merely old.