Two landlords own identical houses on the same street. Same rent, same condition, same market. After five years one has collected meaningfully more than the other, and the difference was not the rent. It was the empty weeks: the gaps between tenancies that one owner treated as inevitable and the other refused to accept.
What an empty week actually costs
The visible cost is the missing rent. The less visible costs stack on top: council tax and utilities transfer to the owner while the property stands empty, insurance conditions often tighten on vacant properties, heating still runs in winter to protect the fabric, and the property itself deteriorates faster unoccupied than lived in. An empty month is not one missed payment; it is a missed payment plus a stack of bills plus accelerated wear, subtracted from a return that was calculated assuming none of it.
Across a portfolio, void weeks are frequently the difference between the yield on the spreadsheet and the yield in the bank account. Which is why serious operators treat them not as weather but as a defect to be engineered out.
Where voids actually come from
Almost every void traces back to a decision made weeks or months earlier. The tenancy that ended without a re letting plan already in motion. The listing that went live with tired photographs into the wrong week of the year. The asking figure tested high with no evidence behind it, burning the crucial first fortnight of marketing. The works that could have been scheduled during the tenancy, done instead in an empty property at full cost in lost rent. And the avoidable departure: the good tenant lost to a neglected relationship or a clumsy renewal, taking their reliability with them.
None of these are luck. All of them are process failures, and process failures have process answers.
How professional operators remove them
The relet starts before the tenancy ends
Notice received is a starting gun. Marketing is prepared while the tenant remains in place, viewings are arranged around them respectfully, and the goal is an agreed application before the keys come back. The best relet is the one where the gap is measured in days and used for cleaning and checks, not for hoping.
Pricing from evidence, first time
The opening fortnight of a listing is when demand is highest. Spending it testing a fantasy figure is the most expensive experiment in lettings. Agreed rent evidence from comparable local lets sets the figure that lets fast at full value, which almost always beats the figure that lets slowly at slightly more.
Retention as a strategy
The cheapest void is the one that never happens because the tenant stayed. Responsive maintenance, fair evidence based renewals and simple respect keep good tenants for years, and every renewal that lands is a re letting cycle, with all its costs and risks, that never occurs.
Works on the clock
Refreshes and repairs are planned against the tenancy calendar, done during occupation where sensible or slotted precisely into a planned gap where not. The property is never simply empty while everyone decides what to do next.
And for owners who want the number gone entirely
Everything above reduces voids. One structure removes them from the owner's world altogether: a guaranteed rent contract, where Morgan Prescott becomes your tenant and pays the same figure every month for a term of two to five years, occupied or not. The void risk does not disappear from the universe; it moves onto our book, where placements from council partnerships and corporate pipelines exist precisely to absorb it.
The full cost stack of an empty property
The lost rent is only the visible layer. Underneath it, the costs keep arriving with the property empty. The mortgage direct debit does not pause. Council tax liability generally passes back to the owner when a tenancy ends, and the generous empty property discounts of years past have largely gone; many London boroughs now charge full council tax on empty homes from early on, precisely because they want them occupied. Utilities keep their standing charges running. Insurance often costs more, not less, once a property is empty, and many policies restrict cover or impose conditions after thirty or sixty days of vacancy: inspections, drained systems, minimum heating in winter.
Stack those on top of the headline figure and an empty month on a £1,900 rent is not a £1,900 problem. It is that, plus perhaps £150 to £250 of council tax depending on borough and band, plus standing charges, plus the insurance wrinkle, plus your own time. Call it comfortably north of £2,100 for the month, none of it recoverable. The point of doing this arithmetic is not to be gloomy; it is that every part of the letting process that shortens vacancy is worth real money, and can be valued precisely against it.
Why voids cluster at changeover
Very few voids are caused by no one wanting the property. They are caused by sequencing: the outgoing tenancy and the incoming one failing to meet. The tenant gives notice; marketing starts a week later than it should; viewings wait for a weekend; the chosen applicant's referencing takes ten days; the check in lands on the first convenient Monday. None of those steps is scandalous, and together they are three or four weeks of silence at £440 a week.
The fix is unglamorous project management. Notice received triggers marketing the same week, with photography from the file if the property has not changed. Viewings are accompanied and grouped, with the sitting tenant's cooperation arranged properly under the tenancy's access provisions and a bit of courtesy. Referencing starts the day an application is chosen, not after a think. Works that the changeover needs are booked for the empty days, not discovered during them. The check out and check in are scheduled as a pair. Run like this, the ordinary changeover gap shrinks from weeks to days, and the arithmetic above says exactly what each recovered day is worth.
Marketing before the keys come back
The single strongest void killer is starting the next tenancy before the current one ends. Under the post May framework, tenants leave by giving two months' notice, which sounds like a threat to planning but is actually a gift: two months is ample time to market, view, reference and sign, provided the machine starts on day one of the notice rather than day thirty.
There are courtesies and rules to observe. The sitting tenant is entitled to quiet enjoyment; viewings happen by arrangement, at civilised hours, with proper notice, and a tenant treated respectfully in their last weeks almost always cooperates. Where our corporate and partnership pipelines hold a live requirement matching the property, the gap can disappear entirely: the incoming occupier is identified before the outgoing tenant has packed a box. That is not magic; it is what holding demand relationships, rather than just listing properties, is for.
Security and insurance while empty
When a gap does occur, the property needs managing through it. Tell the insurer if the vacancy will exceed the policy's threshold, and follow the conditions they set, because an uninsured burst pipe in an empty house is the expensive way to learn this paragraph. In winter, leave the heating ticking over or drain the system; a frozen pipe is the classic empty property claim. Redirect or collect post so the letterbox does not advertise the vacancy. Visit, or have us visit, on a schedule, both for the insurer's benefit and because small problems found early stay small. None of this is difficult, and all of it is the sort of thing that falls through the cracks when a landlord is busy, which is rather the argument for management.
The five year view
Voids compound quietly. A hypothetical: two properties, identical £1,900 rents, held for five years. One changes tenants every eighteen months or so with an average three week gap each time, say four changeovers: roughly £5,300 in lost rent alone, before the extra council tax and costs, and before the possibility that one gap in five years runs long. The other is run on the sequencing above and averages five empty days per changeover: a few hundred pounds per gap and no long tail, perhaps £1,200 across the full five years. The difference is a four figure sum produced not by higher rent but by fewer silent weeks, and it lands entirely in the landlord's pocket.
This is why we treat occupancy as a performance metric in its own right. Rent level gets all the attention, but over a holding period, the percentage of weeks the property actually earned is just as decisive, and it is far more controllable.
Paying the problem away entirely
For some landlords the right answer is to stop owning the problem at all. A fixed guaranteed agreement pays the same figure every month for the whole term, occupied or not; the void risk moves to us, along with the work of filling the property, because our pipelines are the tool that manages that risk. The fixed figure will sit at a sensible level relative to the open market precisely because it comes with certainty attached, and whether that exchange suits you depends on your finances and temperament rather than on any universal rule.
The honest way to choose is with both numbers on the table: the open market estimate with a realistic occupancy assumption, and the fixed figure with a guarantee behind it. That is exactly what our 24 hour appraisal produces, and the postcode form on this page is the fastest way to get it.
What to do this week if your property is empty now
Get the listing live today with honest photographs and an evidence based price, because an overpriced empty property is a void with a subscription. Group the viewings rather than dripping them. Have the compliance file ready so referencing and signing are the only gates between an application and a move in. Put the heating, insurance and post arrangements in place in case the gap runs longer than planned. And if the prospect of running that checklist again for every future changeover has lost its appeal, that is what we are for.
Launch price is a void decision, not just a rent decision
The fastest way to buy a void is to list high and negotiate down in public. A property priced a shade under its ceiling gathers its applicant pool in the first fortnight, when the listing is fresh and the portals favour it; a property priced above the evidence spends that fortnight teaching the market to wait for the reduction. By week four the listing is stale, the eventual agreed rent is frequently below where a sharp launch would have landed, and three or four weeks of the arithmetic in this article have been spent to get there. When we advise a launch figure, the void cost of testing the ambitious number is priced into the advice explicitly: holding out for £50 more per month has to win back roughly £440 for every silent week it causes at a £1,900 rent, and it usually cannot.
When London actually lets
Timing the market matters less than sequencing, but it is not nothing. London demand runs strongest from late spring through early autumn, swelled by relocations, graduate intakes and the school calendar, and quietens markedly from late November to mid January. A tenancy that expires in June re-lets into a deep pool; one that expires the week before Christmas does not. Where we can influence term dates, we steer tenancy ends away from the dead zone, and where a December changeover is unavoidable we begin marketing earlier and price for the season rather than for July. Landlords running their own lettings can borrow the tactic wholesale: when agreeing any tenancy, glance at where its end date will fall, because you are choosing your future void risk at signature.
The thread running through all of this is that voids are not weather; they are workmanship. Sequencing, evidence based pricing, tenant relationships that produce renewals, and pipelines that queue the next occupier are each individually unremarkable, and together they are the difference between a property that earns fifty two weeks a year and one that quietly donates a month of rent to nobody. Whichever route you choose, choose it with the empty weeks priced in.
Either way, the principle is the same. Empty time is not weather. It is the output of systems, and it responds to better ones. If your property has spent more weeks empty than you would like to admit, send us the postcode. The appraisal is free, takes a day, and will show you both routes: the managed tenancy engineered for continuity, and the fixed figure that makes continuity someone else's job.