Things this data says that nobody set out to look for
Every number here is computed from the 35,570 priced sales and 6,910 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applications this site holds, each time the page is built — nothing is typed in, so nothing here can quietly go out of date.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 almost all Guernsey properties sell on a Tuesday or a Thursday?
Because 99% of them do — 20,428 on Thursdays and 14,869 on Tuesdays.
A Guernsey conveyance is completed before the Royal Court, which sits on set days — so the date in the register is a court date, not a moving date. It records when the paperwork was passed, not when anyone got their keys.
Is a house really worth less in March?
Sales completing in March come in at 93.7% of that year's median, against 103.4% in July — a 9.7-point spread, holding across 32 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 9.7% more”.
The repeat-sales index, which does follow the same properties
Is planning permission getting slower?
No — the opposite. An application received in 2022 took a median 76 days to decide; one received in 2024 took 50.
| Application received | Median days to a decision | Applications |
|---|---|---|
| 2021 | 61 days | 793 |
| 2022 | 76 days | 1,574 |
| 2023 | 58 days | 1,265 |
| 2024 | 50 days | 1,302 |
| 2025 | 56 days | 823 |
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 — so the newest figure flatters itself. Withdrawn applications are excluded.
How much of Guernsey actually changes hands in a year?
Between 811 and 1,378 properties — the market nearly halved between 2021 and 2023, 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 court date, so a sale agreed in December and completed in January lands in the later year.
When do families quietly move property between themselves?
December. 4,438 sales in the register are recorded at a nominal £1, £10 or £100, and 452 of them fall in December against 310 in January — an even spread would be 370 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 4,438 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.