A government consultation that most tenants and even many landlords will never have heard of could reshape the economics of leasehold property across Kent. It concerns two numbers, the deferment rate and the capitalisation rate, that sound like the driest corner of property valuation. In practice they will decide, flat by flat, how much leaseholders pay to extend a lease or buy a freehold, and how much freeholders receive in return.
The formal consultation on leasehold enfranchisement valuation rates, published on 15 July 2026, is not a peripheral technical exercise. It sits at the heart of implementing the Leasehold and Freehold Reform Act, and it runs alongside two other changes that cannot sensibly be separated from it: marriage value is being scrapped, and the treatment of ground rent is changing at the same time. Writing in Property118 this week, ALEP member Vanessa Griffiths argues that the debate around the consultation has become too narrow, fixated on which single percentage should be chosen rather than on what the reforms mean once combined.
A single percentage point, billions apart
The deferment rate values the freeholder's right to recover a property once the lease runs out. The current benchmark is 5% for flats and 4.75% for houses, following the 2007 Sportelli decision. A higher rate shrinks the present value of that future interest, a lower rate inflates it, and government modelling makes the scale of the effect strikingly clear.
Take an illustrative £250,000 flat with 80 years left on the lease. Reducing the deferment rate from 5% to 4% increases the reversion value from £5,044 to £10,846. Raising it to 6% reduces it to £2,363. Multiply that across the whole market and the numbers become genuinely significant. Against a 5% baseline for flats, the government estimates that a 3% deferment rate could mean leaseholders paying around £6.3 billion more to freeholders over ten years, while a 6% rate would mean leaseholders paying around £1.1 billion less. Whichever way the government moves, it is deciding where a very large amount of value ends up.
Capitalisation rates are messier still
The capitalisation rate does the equivalent job for ground rent, valuing the income stream a freeholder loses when a lease is extended or a freehold sold. Here the existing evidence is far less tidy. Government analysis of First-tier Tribunal decisions found rates ranging from 4.5% to 9%, with 88% of cases in the sample between 6% and 7%. That spread reflects real differences between ground rent arrangements, since rent level, review clauses and lease structure all vary from block to block. Fixing a single rate promises consistency but strips out some of that nuance, and the picture becomes harder to read once existing ground rents are separately capped, because the income being valued shrinks at the same time as the rate applied to it changes.
The wider ground rent reform is already well known to Kent freeholders and managing agents. The government's plan is to cap ground rents at £250 a year, falling to a peppercorn after a 40-year transition. The Residential Freehold Association, representing professional freeholders, has called the cap "a wholly unjustified interference with existing property rights" that would "seriously damage investor confidence in the UK housing market," and has pointed to earlier impact assessments suggesting compensation for freeholders could exceed £27 billion nationally. Whatever view one takes of that argument, it shows how much is riding on the valuation methodology now being consulted on.
What it means across Kent's leasehold stock
Kent has no shortage of leasehold flats caught up in this. The county's rental yields already sit slightly below the England average, at 3.4% overall, with the strongest returns concentrated in North Kent and Medway. Dartford leads Kent's councils on yield at 4.2%, with Swale on 3.8% and Medway unitary authority on 3.7%, while postcode districts including ME6, ME11 and CT17 reach 4.7%. A good many of those returns come from flats bought on long leases with ground rent obligations, from Chatham's waterside developments to newer blocks around Ebbsfleet and Dartford town centre.
Medway's rental market alone currently has around 1,250 homes listed to let, with average asking rents of £1,312 a month, a large proportion of them flats subject to leasehold and ground rent terms. Further along the Thames corridor, Gravesend's flats are producing gross yields of between 5.5% and 6.5%, and Tonbridge's rental market is running at roughly 4.3%. For landlords holding these properties on leasehold terms, or for the freeholders who receive their ground rent, the deferment and capitalisation rates eventually prescribed will directly affect what any future lease extension or freehold sale is worth. A change of one or two percentage points is not an abstract policy detail here. It is the difference between a modest premium and a substantial one on flats across Chatham, Gillingham, Gravesend and Dartford.
Compensation, not just simplicity
Griffiths' central argument is that the consultation asks how to make enfranchisement simpler without asking clearly enough what counts as a fair price. Enfranchisement valuation has traditionally tried to reflect the real value of the interest being acquired. The new system moves further towards figures set by government policy rather than market evidence. Leaseholders have legitimate concerns about cost, complexity and uncertainty, and simplification has genuine merit. But freehold interests were acquired lawfully, often by a far broader range of investors than the single villainous landlord of popular imagination, including pension funds, charities and public sector bodies, and any new system needs to be transparent about the basis on which those interests are now being compensated.
That clarity matters because the investment market is not waiting for the legislation to land. Expectations about future ground rent income and reversionary value are already influencing how portfolios of leasehold interests are priced today, well before any rate is finalised. For Kent's landlords and freeholders, that means the practical consequences of this consultation are arriving faster than the formal rulebook.
A month left to be heard
The consultation on valuation rates runs until 21 October, giving Kent's landlords, freeholders and their advisers a narrow window to make their case before the government settles on a methodology that will shape the value of leasehold property for years to come. Implementation of the wider Act has already been slowed by legal challenges from freeholder groups, so nothing here will move quickly. But for anyone holding a leasehold flat or a freehold ground rent interest in the county, the outcome of this technical-sounding exercise will be anything but abstract once it finally lands.