Sundown Cottage, Vazon Road, Castel, GY5 7LH
Description
Sole Agent. Sundown Cottage is a generous and well maintained semi-detached Guernsey cottage situated on the highly desirable west coast, boasting front-line sea views. On the ground floor, the accommodation includes a kitchen, dining room, sitting room, double bedroom, office/bedroom, bathroom and conservatory. The first floor offers two additional double bedrooms. Outside, the south-facing garden is mainly laid to lawn and features a patio area and a pond. To the front, there is ample parking available bo
‹ Back to searchWhat the numbers on this listing say
- Across 150 sales in the last 24 months that this site could match to their own asking price, Guernsey property achieved a median 87.1% of asking. At that median this one would go for about £522,844 — a distribution, not a prediction for this property. See the full spread.
- New to this site 4 days ago. Little negotiating history has built up yet.
- Local Market. Local Market property requires residential qualification to occupy. How the two markets differ.
Assembled from this site's own record of the listing and the States of Guernsey sold-price register. It deliberately makes no recommendation and no valuation — it reports what is measurable and leaves the judgement to you.
What this purchase costs beyond the asking price
If this will not be your principal private residence — a second home or a buy-to-let — an additional 2% per band applies, taking the duty to £29,750. Advocates conventionally attribute 2.5% of the price to contents, which carries no duty; on that basis the figure would be about £17,150. The headline above deliberately assumes no such attribution, because understating it is the error that costs you money on completion. Bands are those published for real property conveyances — check the current rules on gov.gg or ask your advocate for the figure that actually applies. This site is not a tax adviser and takes no fee from anyone named on this page.
What it would cost each month
Starts from 5.10% — 5 year fixed rate up to 90% loan to value, published by SPF Private Clients (Channel Islands) Ltd and read by this site on 2026-08-23. See every rate they publish, or change the figure above. It is their published rate, not an offer to you: lenders apply their own income multiples and status checks. This site is paid nothing by any lender or broker and gives no advice. Document duty is calculated from the published band scale; everything else follows from the numbers you type.
Getting connected
Guernsey's copper telephone network is being retired at the end of 2026, and every property on the island is expected to be connectable to the fibre network. In practice that means a purchase completing now will be a fibre connection, and a landline-only arrangement will not survive the switch-off — worth settling before moving day rather than after it.
Three providers sell residential broadband here: Sure, JT, Airtel-Vodafone. Airtel-Vodafone was acquired by Sure in November 2024, so the market is more concentrated than three names suggest.
This site has no per-address availability feed and so makes no claim about the speed or price at this property — check with a provider against the actual address before you rely on it. No provider pays this site anything, and these are ordinary links, not referrals.
What would improving it be worth?
Value added is the extra floor area priced at £8,475/m² — the midpoint asking price per m² among 8 Castel properties currently for sale that publish a floor area. Cost uses real Guernsey build rates: £4,000–£6,000/m² new build and £2,000–£4,000/m² refurbishment, depending on quality. Net is against the mid rate. The last column is how often Guernsey actually grants that kind of application.
| Improvement | Value it might add | Likely cost | Net | Granted |
|---|---|---|---|---|
| Add a bedroom (single-storey extension) A modest double plus circulation, built new. ~14 m² |
£118,657 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£48,657 | 97% (1,510) |
| Loft conversion with a bedroom Works inside an existing roof, so it prices as refurbishment rather than new build — which is why it usually wins. ~20 m² |
£169,510 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£109,510 | 97% (148) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£237,313 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£97,313 | 93% (86) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£91,535 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
+£1,535 | 90% (738) |
Two things it cannot see. First, it prices floor area at the local average rate — it doesn't know your plot, your roof, your outlook, or whether an extension is physically possible; nor whether your street has a ceiling price that no amount of extending beats. Second, the rate comes from asking prices of other properties currently for sale, because Guernsey's sold register records no floor areas at all — so it reflects what sellers ask, not what buyers paid.
The obvious alternative method is worse, which is why it isn't used here: comparing a typical 3-bed with a typical 4-bed suggests a bedroom is worth around £430,000 island-wide. It isn't — a 4-bed is generally a bigger house on a bigger plot, so that figure measures the mix of what's for sale, not the value of adding a room.
Before spending anything, get a builder's quote and talk to an architect — who is actually filing applications shows which firms are active and how often their applications succeed.
Building work on this property
Architects with planning applications on file in the same parish as this property — not a claim any of them worked on this specific property, just a proximity signal:
Same estimate model this site uses on its planning pages (Channel Islands-adjusted UK cost ranges) — a rough starting point, not a quote. Always get quotes from a Guernsey builder before budgeting.
See also all Guernsey property professionals — architects, surveyors, mortgage brokers and trades.
Sale history
No prior sale found in the Guernsey property register for this address.
Planning history
No planning application found in this site's planning dataset for this address.
Search full planning history for this address (live, back to 2009)
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