Common questions about Guernsey property
The questions that come up most, answered from this site's own data and recalculated every time the page loads — so these figures never drift from what the rest of the site shows. Where an answer has working behind it, the link goes to it.
How much does a house cost in Guernsey?
The midpoint asking price across the 1,022 properties currently for sale here is £750,000. That is an asking figure and it moves with what happens to be on the market, so it is a weaker guide than the sold register — see what has actually sold, or the price index for the trend rather than the level.
Have Guernsey house prices gone up or down?
Over the last ten years the island's repeat-sales index is 49%, and since 1995 it is up 492%. The 2010s were flat to falling, 2020–22 rose sharply, and 2023 gave some of it back. See the year-by-year index — it is built from 4,293 properties that sold twice, so it measures the market rather than the mix of what sold.
What is the difference between Open Market and Local Market?
Local Market housing is restricted to people with a Guernsey residential qualification, an Employment Permit, or immediate family of a Local Market householder. Open Market has no residency restriction. Right now this site holds 140 Open Market and 609 Local Market listings that declare their status. The rules are the States', not ours — the explainer links to the official pages, and you should check those before committing to anything.
Why do some sold prices say £1?
4,438 rows on the States register are recorded at a nominal £1, £10 or £100. That is the standard token consideration for a transfer inside a family or an inheritance settlement — not a market sale. This site labels every one of them and excludes them from every average it calculates. See just those transfers.
What does "under offer" mean, and can I still look?
258 of the listings here are marked under offer, meaning a price has been agreed but the sale has not completed. In Guernsey a sale completes at the Royal Court, and until then nothing is binding. Plenty of properties come back. Browse those under offer, or see how completion actually works.
Will I get planning permission for an extension?
Guernsey grants a lot of what is submitted: 97% of the 1,510 decided single-storey extension applications on file were granted. That number is flattered by self-selection — proposals unlikely to succeed often never get filed, or are withdrawn after pre-application advice — so it is not the odds on any conceivable scheme. The full approval-rate table by type of work.
Is an extension or loft conversion worth doing?
At the island midpoint of £6,271/m², added floor space is worth roughly that per square metre — against a build cost this site estimates from the work described. A loft conversion tends to come out furthest ahead; a single-storey extension is closer to break-even. See the value-versus-cost table, which also shows how often each type is granted.
What is my house worth?
There is no honest automatic valuation for Guernsey, and this site does not pretend otherwise: the register records an address, a date and a price — no floor area, no coordinates, no property attributes. What you can see is every recorded sale of your house and your street, carried forward to today's money. Look up your address.
Why can I not search by postcode?
Because Guernsey postcodes cannot be resolved reliably: the States register carries a postcode on 1 of its 41,045 rows, and the public mapping services that cover UK postcodes return nothing for GY codes. Searching by house name, street or parish works, because that is what the data actually holds.
How often is this updated, and where does it come from?
Listings refresh daily at 04:00 UTC from 23 agents' own websites; planning nightly at 02:00; the sold register weekly. Stock levels and asking-price changes are this site's own daily observations. The full source table and what is inferred rather than known.
Do you take commission, or favour any agent?
No. This site is not an agent, is not owned by one, and earns nothing from where a property appears in its results. Default ordering is deliberately shuffled within each day so no agent's stock sits permanently at the top. It also does not republish agents' phone numbers or email addresses next to their listings.
Something here is wrong — how do I get it fixed?
Tell us and it gets fixed at the rule, not just the page. Mismatched sale or planning records, a stale status, two properties merged into one: how to report it. Agents asking about their own listings are dealt with first.
Nothing here is legal, financial or valuation advice, and Guernsey's housing rules are set by the States and can change — always check the official source before acting. Terms · How this site works