Le Mont Du Rocher, St. Lawrence, St Lawrence
Description
Dating back to the mid nineteenth century, La Rosière is an elegant and substantial farmhouse style residence offering over 3,600 sq ft of beautifully proportioned accommodation, combining period charm with exceptional flexibility for modern family life. Occupying an elevated position with mature south-west facing gardens, the property enjoys an abundance of natural light together with a wonderful sense of privacy and tranquillity. The accommodation comprises four generous double bedrooms together with a further smaller double bedroom, currently utilised as a home office. The principal suite benefits from an en suite bathroom, whilst the remaining bedrooms are served by a family bathroom and additional shower room facilities arranged over the upper floors. The ground floor offers excellent living and entertaining space, including three spacious reception rooms full of character and warmth, together with a well appointed kitchen, separate breakfast room, utility room and cloakroom. Externally, the gardens are a particular feature of the property. The mature south-west facing lawned garden incorporates a productive vegetable garden, greenhouse, shed and an impressive variety of established shrubs and trees. To the rear, a terraced garden and seating area provide further space for outdoor entertaining and enjoyment. Further practical features include a substantial loft space with convenient drop down ladder access, providing excellent additional storage. A detached double garage together with parking for up to four vehicles further enhances the practicality of the home. A particularly valuable addition is the integrated one bedroom apartment located to the rear of the property, benefitting from its own private entrance whilst remaining connected to the main house utilities…
Not marked as sole agency on the original listing, so this property may also be marketed by other agents not captured in this data.
Nearby
- PubVictoria in the Valley0.38 mi · 8 min walk · 1 min drive
- RestaurantMan's Garden0.71 mi · 15 min walk · 2 min drive
- CaféCafe @ Jersey War Tunnels0.02 mi · 0 min walk · 0 min drive
- SupermarketCo-operative Grand Marché1.6 mi · 35 min walk · 5 min drive
- AirportJersey Airport2.3 mi · 7 min drive
- Petrol stationUnnamed petrol1.1 mi · 25 min walk · 4 min drive
- GP surgeryLister Surgery3.0 mi · 64 min walk · 10 min drive
- DentistConfidence Dental Care3.4 mi · 72 min walk · 11 min drive
- SchoolSt Lawrence's School0.96 mi · 21 min walk · 3 min drive
- Hospital / medical centreUnnamed hospital0.84 mi · 18 min walk · 3 min drive
Nearest match in each category, from a fixed list of Jersey amenities — not every pub, café or shop on the island, so treat this as a useful sample, not a complete picture. Distances are straight-line ("as the crow flies"), multiplied by 1.3 to approximate real road-network distance — this is an estimate, not turn-by-turn routing, and actual walking/driving routes may differ. Times assume constant average speeds appropriate to Jersey's roads and 40mph limits: walking 4.5 km/h, cycling 14 km/h, driving 30 km/h — not open-road speeds, and they don't account for traffic, parking or terrain.
Price per square metre
£1,595,000 over 334.5 m² is £4,768 per m². Compared with other properties currently for sale that publish a floor area — the percentage is this property against that group's midpoint:
Floor area is parsed from the agent's own listing text (a stated size, or a figure mentioned in the description) — jersey's data carries no dedicated floor-area field, so coverage is partial. Comparisons are drawn from asking prices of properties currently for sale that publish a floor area, not achieved sale prices — the Places.je register records no floor areas at all, so a sold £/m² cannot be calculated from it. Sample sizes are shown in brackets; small groups move a lot. This is context for a conversation with an agent, not a valuation.
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 Lawrence, 334.5 m² of known floor area. Adjust build quality or size for this property
Value added is the extra floor area priced at £8,889/m² — the midpoint asking price per m² among 33 St Lawrence 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 |
£124,444 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£54,444 | 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 |
£177,778 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£117,778 | 86% (84) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£248,889 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£108,889 | 83% (193) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£96,000 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
+£6,000 | 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
| Application | Description | Status |
|---|---|---|
| P/2025/10339 | Construct Carport to West of Site. | Approved Full record |
Matched by house name/street and parish against Jersey planning applications decided in the last 3 years — coverage is partial and not a unique-ID lookup.
Estimated cost of live planning permissions
Jersey planning permissions lapse after a set period if unbuilt; these applications fall inside the last 3 years and were not refused, so they are presumptively still capable of being implemented.
- P/2025/10339 — Internal alteration / change of use
£18,750–£50,000Construct Carport to West of Site.
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.
Similar properties
Other current listings for sale in St Lawrence, 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.
