Void Period
Definition
A void period is the stretch of days a bed or room sits empty between residents, earning nothing while fixed costs keep running. Compressing voids — booking the turnover clean and re-listing before move-out — is one of the highest-return operational disciplines in coliving.
The formula
Void cost = (Void days ÷ Days in month) × Monthly rate × Rooms turning
- Void days
- days between the end of one tenancy and the start of the next, per room
- Rooms turning
- how many rooms turn over in the period
Worked example
A twenty-bed portfolio at £780 a month with an average stay of eight months — so roughly 30 turnovers a year — and an average void of 9 days per turnover.
- 01Void cost per turnover = (9 ÷ 30) × £780 = £234.
- 02Annual void cost = 30 turnovers × £234 = £7,020.
- 03Compress the average void from 9 days to 4: (4 ÷ 30) × £780 × 30 = £3,120.
Cutting the average turnover gap by five days is worth about £3,900 a year on twenty beds, with no change to rate, no marketing spend, and no new residents required.
Void days are invisible on a snapshot occupancy report, which is why they persist. A building measured on the last day of the month can show 95% while carrying nine-day gaps on every turnover — the loss is real, continuous and entirely absent from the number being reported.
In a softening market, void compression is worth more than it was in a tight one. When there are alternatives, an enquiry that arrives while the room is still being cleaned has moved on by the time it is listed. Speed of turnaround converts directly into occupancy exactly when occupancy is hardest to buy.
The second lever is when tenancies end rather than how fast you fill them. A twelve-month tenancy signed in July ends in July, and you have engineered your own worst month into every subsequent year. Shifting break dates and renewal windows toward the strong months buys occupancy points that cost nothing.
The common mistake
Starting the marketing clock at move-out
The single most expensive habit in coliving operations is treating the room as available on the day it empties. The notice period is the marketing window: viewings, deposit and referencing can all be done while the outgoing resident is still there, so the only genuinely unavoidable void is the turnaround clean and any works. Operators who book the turnover clock at notice rather than at move-out routinely halve the gap.
Frequently asked
What is a good average void period in coliving?+
In the buildings we have run, four days or fewer is achievable when the marketing clock starts at notice rather than at move-out, and nine to fourteen days is common where it does not. The gap between those two is pure operating discipline rather than market conditions.
Does void period affect occupancy or revenue?+
Both, but it only shows up honestly in bed-night occupancy and RevPAB. Snapshot occupancy measured on a date can miss every void in the building, which is why turnover gaps survive so long in operations that report that way.
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