A vacancy doesn't start when the tenant leaves. It starts months earlier, in the small frustrations you never heard about. By the time a notice lands in your inbox, the decision was made long ago — and turnover is the most expensive line item most landlords never put on a spreadsheet.
In short: a single move-out usually costs far more than the empty month. On a €1,100/month flat, a six-week void plus make-ready and re-letting can wipe out two to three months of profit. Keeping a good tenant one extra year avoids the whole bill — the cheapest re-let is the one you never have to do.
What a single move-out actually costs
The empty month is the obvious cost. It's rarely the biggest one. Add up the full bill:
- Void rent — weeks, sometimes months, with zero income
- Make-ready — cleaning, repainting, repairs between tenants
- Re-letting fees — advertising, viewings, referencing, agency commission
- Your time — the hours you don't bill but absolutely spend
On a €1,100-a-month flat, a six-week void plus make-ready and re-letting can erase two to three months of profit in one changeover. Keep that tenant one more year and you've avoided the entire bill.
"The cheapest re-let is the one you never have to do." — PropFlow
The levers that actually move retention
You can't keep everyone — people relocate, buy, change jobs. But most avoidable churn comes down to a handful of things you control.
Fix things fast
Slow repairs are the number-one reason good tenants quietly start browsing listings. A leak ignored for three weeks tells a tenant exactly how much you value them. Speed signals respect.
Price renewals like you want them to stay
Pushing a renewal to the absolute top of market rent can win €40 a month — and trigger a move that costs you €3,000. Price renewals to retain, not to maximise the headline.
Communicate before problems escalate
A quick check-in mid-tenancy surfaces the small issues while they're still small. Tenants who feel heard renew. Tenants who feel ignored leave.
Treat the lease end as a date, not a surprise
Renewals handled late feel transactional and rushed. Reach out well before expiry and a renewal becomes a conversation, not an ultimatum.
Turnover hides in the data
The trap is that turnover never shows up as a line on your statement — it shows up as months that quietly underperformed. You only see the pattern when you track vacancy, void length, and renewal rates across the whole portfolio.
PropFlow surfaces exactly that: a vacancy and turnover view that shows how long units sit empty and which leases are coming up for renewal — so you act on an expiry before it becomes an empty month, not after.
If one avoided vacancy pays for months of software, compare the PropFlow plans before your next renewal window.
Key takeaways
- One move-out can cost two to three months' profit — not just the empty month.
- Most avoidable churn traces back to slow repairs and aggressive renewal pricing.
- A €40/month renewal bump can trigger a €3,000 turnover; price to retain.
- Track void length and renewal dates so you act before an expiry becomes a vacancy.
Keeping a good tenant is almost always cheaper than finding a new one. The landlords who win at this don't work harder at re-letting — they make re-letting rare.