Carteret House
Description
Some houses have a sea view. , This one has presence. , Perched high on Jersey's dramatic north-east cliffs, Carteret House commands uninterrupted views across Rozel Bay and out towards the French coastline. You're moments from one of the Island's prettiest harbours and beach - but at home, you've got privacy, space, and that rare feeling of being completely removed from the world (without actually being miles from it). , It's contemporary, confident, and finished to an ultra-luxury standard - the kind of place where every detail feels deliberate, not decorative. , Living The house is built around light and outlook. A generous arrival leads into a choice of beautifully proportioned reception rooms, all framed by floor-to-ceiling glazing that keeps dragging your eye back to the sea. There's a main kitchen with bespoke cabinetry for everyday life, backed up by a fully fitted catering kitchen for when you're hosting properly. Add in a private office, a cinema room, and a layout that opens effortlessly onto the terrace - and it's clear this home was designed to live in, not just admire. On the lower level, it turns into an entertainment zone: bar, dining and lounge areas, plus gym, infra-red sauna, shower and changing facilities with direct access out to the pool terrace. It's "private resort" energy - without trying too hard. , Sleeping Upstairs, the principal suite takes full advantage of the view, with a private balcony, a generous en suite, and a substantial dressing area. The remaining bedrooms are all well-sized, each finished to the same high standard with luxury bathrooms - so guests and family get the same experience, not the "second best" rooms. , Secondary Accommodation A detached six-car garage sits within the courtyard approach, with a self-contained apartment above - ideal for staff, guests, older children, or multi-generational living. , Pool The outside spaces are properly thought through. An impressive heated infinity pool anchors the main terrace, with sunbathing space, a sunken seating area that feels sheltered and private, and further terracing flowing down into the grounds - including a fire pit area for long evenings. There's also a fully operational outdoor kitchen with a built-in BBQ and pizza oven - because if you're going to do outdoor living, you may as well do it properly. And then there's the headline feature: a pathway winding down from the garden to a hidden cove below. It's the sort of thing you normally only see in brochures abroad⦠except this is Jersey. , Services Mains water, electricity, and drains, oil-fired central heating (main house), air source heating for the six-car garage/apartment, air source heating for the pool, Security alarm system, CCTV, and automated fire detection , ,
Combined from 2 agents' own descriptions of this property — see "Also listed by" below for each agent's original wording.
Also listed by 1 other agent
Matched automatically against this site's own listings by title and price — not a unique-ID lookup, so treat this as a strong signal rather than a certainty.
What would this cost to buy?
A live estimate, not a quote — change any figure below and everything recalculates immediately. Stamp duty / Land Transaction Tax uses Jersey's own standard-residence bands (see buying property in Jersey for the full table and how share-transfer property differs); the mortgage side is a standard capital-and-interest repayment calculation, not an offer from any lender.
Getting connected
Jersey has two residential broadband providers: JT — the island's own former state telecom, now Jersey's full-fibre network builder — and Sure, which completed absorbing Airtel-Vodafone's Channel Islands customer base in September 2025 (Airtel-Vodafone no longer trades as a separate operator here). Jersey's copper phone network is largely already history: JT finished building an island-wide fibre-to-the-home network back in July 2018 and has been retiring copper ever since — well ahead of Guernsey, where the equivalent copper switch-off was still under way through 2026. Always confirm actual coverage and switch-over status at this specific address directly with JT or Sure before assuming.
What would improving it be worth?
Modelled for this property in St Martin, 1,244.7 m² of known floor area. Adjust build quality or size for this property
Value added is the extra floor area priced at £9,059/m² — the midpoint asking price per m² among 11 St Martin properties currently for sale that publish a floor area. Cost uses £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 Jersey actually approves that kind of application.
Unlike the value side of this table (priced from Jersey's own current asking prices), the £4k–6k new-build / £2k–4k refurbishment rates are carried across from guernseyproperties.gg, where they were supplied by that site's owner from local Guernsey experience — they have not been independently verified for Jersey, and construction costs plausibly differ between the islands. Treat the Cost and Net columns as an unverified placeholder until a Jersey-specific quantity surveyor's rate replaces them.
| Improvement | Value it might add | Likely cost | Net | Approved |
|---|---|---|---|---|
| Add a bedroom (single-storey extension) A modest double plus circulation, built new. ~14 m² |
£126,824 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£56,824 | 86% (569) |
| 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 |
£181,178 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£121,178 | 86% (84) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£253,649 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£113,649 | 83% (193) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£97,836 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
+£7,836 | 82% (216) |
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 that state a floor area — a minority of Jersey's live stock, so treat the sample sizes shown as real limits, not decoration.
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 far more than it actually is — a bigger bed-count usually means 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 — the type-of-work approval rates show how often that kind of application actually succeeds.
Sale history
No prior sale found in the Jersey property register for this address.
Planning history
No planning application found in the last 3 years for this address.
Estimate the cost of work you're considering
No live planning permission is on file for this address, so there's nothing to price directly — pick the kind of work you're weighing up instead, using the same cost ranges this site applies to real Jersey planning applications.
The work type shown is inferred automatically from the wording of the planning application's own description — it isn't stated by the applicant. The base cost range comes from published UK national renovation/build-cost guides for that type of project, and a ~25% uplift has been added to reflect higher shipping/import and skilled-labour costs in the Channel Islands — this is an estimate, not a published index. These figures are indicative only, not a quote: actual cost depends on specification, finish, ground conditions and the contractor. For anything serious, get a quote from a local quantity surveyor or builder.
See the 27 architects, structural engineers and builders working in Jersey. This can't be narrowed to firms who've filed nearby this property or this parish — Jersey's planning register carries no applicant, agent or architect field to match against (see the professionals directory).
Similar properties
Other current listings for sale in St Martin, ranked by how many of the reasons on each card it shares with this one (closest asking price breaks ties) — every reason shown is exactly why it's here, not a hidden score.
