Quick ways in Under £500k£500k–£1M£1M+ 2+ beds3+ beds4+ beds Open marketLocal market

La Grande Route De St. Martin, St. Martin, St Martin

La Grande Route De St. Martin, St. Martin

Description

Impressive five bedroom detached family home. Exceptional family home built to an outstanding specification Grand interiors with large reception room Mature gardens offering peace and privacy Gated entrance to ample driveway parking Double garage Great location for schools and town commute Location Perfectly positioned for family life, the property is within easy reach of Jersey’s leading schools, offers a straightforward commute into St Helier and is close to local amenities. The popular restaurants and stunning coastline at Gorey are just a short drive away. Description Built by a renowned local developer for his family, this impressive modern residence has been constructed to an exceptional specification, combining generous proportions with timeless quality throughout. From the magnificent sweeping solid wood staircase to the solid wood internal doors, every detail reflects craftsmanship and enduring quality. Approached via a long shared driveway, tucked behind electric gates the property enjoys a private and prestigious arrival. The impressive entrance hall immediately sets the tone, with its grand proportions and elegant staircase creating a wonderful first impression. The beautifully proportioned sitting room is a superb space for entertaining or relaxing, featuring a working fireplace and doors opening onto the gardens. A separate formal dining room provides the perfect setting for family celebrations and special occasions. At the heart of the home is a light filled kitchen, complete with a traditional AGA, an abundance of windows and ample space for everyday family life. The kitchen leads into an outstanding family room, creating a sociable living space with direct access to the garden. A substantial utility room provides excellent practical space. The first flo…

Ref 65635
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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

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.

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. Adjust build quality or size for this property

Value added is the extra floor area priced at £8,500/m² — the midpoint asking price per m² among 21 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.

The build-cost figures below are Guernsey's, not Jersey's

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.

ImprovementValue it might addLikely costNetApproved
Add a bedroom (single-storey extension)
A modest double plus circulation, built new. ~14 m²
£119,000 £70,000
14 m² · mid spec new build
range £56,000–£84,000
+£49,000 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
£170,000 £60,000
20 m² · mid spec refurb
range £40,000–£80,000
+£110,000 86% (84)
Two-storey extension
Roughly 14 m² on each of two floors. ~28 m²
£238,000 £140,000
28 m² · mid spec new build
range £112,000–£168,000
+£98,000 83% (193)
Garage, annexe or outbuilding
Detached space is worth less per m² than main-house floor area. ~18 m²
£91,800 £90,000
18 m² · mid spec new build
range £72,000–£108,000
+£1,800 82% (216)
Read this as an order of magnitude, not a promise

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.

All 167 recorded sales on La Grande Route de St Martin

Planning history

ApplicationDescriptionStatus
RP/2026/11252RETROSPECTIVE: Demolish garage. REVISED PLANS to P/2025/0740 (Construct extensions to West and South elevations. Install new flue. Various i…Approved
Full record
P/2026/11092Construct carport with solar panels to East of site.Approved
Full record
RP/2025/10211REVISED PLANS to P/2024/0558 ( Convert and extend existing garage to form 1 No. 3 bedroom bed dwelling inclusive of 2 No. balconies to South…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.

How this is calculated

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.

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