About guernseyproperties.gg
An independent search over every Guernsey estate agent's listings, joined to the States of Guernsey's own public property and planning registers. Not an agent, not owned by one, and not paid to rank anybody — the site earns nothing from where a property appears in its results.
guernseyproperties.gg is owned and operated by 37x Limited (Guernsey company CMP76157). No estate agent, developer or professional firm holds any stake in it or pays for placement on it. Contact details.
Where each number comes from
| What you see | Source | Refreshed |
|---|---|---|
| Listings, prices, photos | Each agent's own public website (23 agents) | Daily, 04:00 UTC |
| Sold prices since 1990 | States of Guernsey property register, via Savills' public search | Weekly, Monday 03:00 UTC |
| Planning applications | States of Guernsey Planning Websearch | Nightly, 02:00 UTC |
| Stock levels & asking-price changes | This site's own daily observations | Daily, 05:00 UTC |
| House price index | Computed here from repeat sales in the register | With the register |
What this site infers, rather than knows
Several features are derived, and are labelled as such wherever they appear. Being explicit about them is the point:
- Address matching. Listings are joined to register and planning records by house name/street plus parish — not by a shared ID, because no shared ID exists. A property whose house name is shared with another can therefore mismatch. Every such section says so.
- Cost of works. Estimated from each planning application's own description text using published UK build-cost guides plus a Channel Islands premium. A guide, never a quote.
- The house price index. A repeat-sales regression over properties that sold twice. It cannot see improvements, so like every repeat-sales index it runs slightly hot.
- Property type and parish. Read from free text where agents don't declare them, so a minority will be classified differently than a human would.
- Duplicate listings. Where several agents market one property, the listings are grouped and shown once, matched on address and attributes.
What it deliberately doesn't do
It doesn't republish agents' phone numbers or email addresses next to their listings, doesn't invent statistics it has no data for (no fabricated "response times" or review scores), and doesn't present its own estimates as valuations. Where the States of Guernsey publish an official statistic that disagrees with a figure here, theirs is the authority.