Things this data says that nobody set out to look for
Every number here is computed from the 40,645 priced sales and 17,820 planning applications this site holds, each time the page is built — nothing is typed in, so nothing here can quietly go out of date. Each one also says what would make it wrong, because a pattern this easy to find is usually an artefact of how the data was collected rather than a fact about property.
Why do so many Manx sales complete on a Friday?
16,230 of them do — against 6,946 on Thursdays, the next busiest day.
There is no legal reason for it. Guernsey's register clusters on Tuesdays and Thursdays because every conveyance there completes in person before the Royal Court on those days — but a Manx completion is a registry transaction that could fall on any working day. This is habit: advocates, lenders and removal firms all working to the same convention. What would make this wrong: the register records the date of the transaction, which need not be the day anyone actually moved in.
Is a house really worth less in January?
Sales completing in January come in at 95.7% of that year's median, against 102.2% in October — a 6.5-point spread, holding across 22 separate years.
Each year is normalised against its own median first, so three decades of house-price inflation cannot masquerade as a seasonal effect. What would make this wrong: it measures the mix of what sold, not the same house at two different times. If larger properties tend to complete in summer, that alone produces this pattern — read it as “expensive homes change hands in July”, not “list in July and get 6.5% more”.
The repeat-sales index, which does follow the same properties
Is planning permission getting slower?
An application received in 2026 took a median 0 days to decide; one received in 2026 took 0.
| Application received | Median days to a decision | Applications |
|---|---|---|
| 2026 | 0 days | 258 |
What would make this wrong: only decided applications can be timed, and the most recent year is the one most likely to still have slow cases outstanding.
How much of the Isle of Man actually changes hands in a year?
Between 1,811 and 2,483 properties — the market nearly halved between 2021 and 2024, then recovered.
Against an island of roughly 32,000 dwellings, even a peak year moves about four in every hundred. What would make this wrong: nominal £1 family transfers are excluded, and a year is counted by the date of registration, so a sale agreed in December and completed in January lands in the later year.
When do families quietly move property between themselves?
March. 2,268 sales in the register are recorded at a nominal £1, £10 or £100, and 221 of them fall in March against 163 in June — an even spread would be 189 a month.
A token price is the standard consideration for a transfer within a family or an estate settlement, not a market price — which is why this site strips all 2,268 of them out of every average it computes. What would make this wrong: the skew is modest, and December is also when solicitors clear their desks before the year end, which would produce the same shape for a duller reason.
Because they are the questions people actually ask, and because a register nobody cross-references is just a list. None of it is advice, and none of it predicts what your own property will do — every finding here describes what has already happened to other people's homes, which is a different thing.