La Rue De La Mare Ballam, St. John, St John
Description
Beautiful detached granite family home 5 bedroom main house, 2 bedroom cottage Large sunny south facing garden Close to St Johns Village FREEHOLD - A rare opportunity to acquire a substantial country residence offering exceptional space, character and versatility, conveniently located close to St John's village amenities. At the heart of the home is an impressive converted barn, now a stunning kitchen and dining room with vaulted ceilings, exposed features and a dramatic mezzanine lounge above. This spectacular space opens directly onto the gardens and serves as the focal point of the property. The accommodation comprises a five-bedroom main house together with a separate two-bedroom cottage, ideal for multi-generational living, guest accommodation or rental income. The main house offers an excellent range of living spaces including a formal dining room, sitting room, study, games room/gym and a unique granite wine cellar. A large top-floor reception room adjoining the attic bedroom provides the perfect playroom, cinema room or teenage retreat. The principal bedroom suite benefits from a walk-in wardrobe and en-suite bathroom, while the remaining bedrooms are served by two family bathrooms. A dressing room could also be repurposed as an additional bedroom if required. The detached cottage offers a large kitchen, separate dining room and living room with a log burner, together with its own patio and access to the main gardens. Outside, the property enjoys three distinct garden areas. The main garden is private, enclosed and south-facing, enjoying sunshine throughout the day. There is also a beautiful kitchen garden with raised beds and patio, accessed through an impressive glazed archway from the kitchen. To the rear, a further garden and parking area surrounded by matur…
Combined from 2 agents' own descriptions of this property — see "Also listed by" below for each agent's original wording.
- bathrooms: 3 (Fine & Country Jersey) vs. 4 (Savills Jersey)
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.
Nearby
- PubSt. John Inn0.09 mi · 2 min walk · 0 min drive
- RestaurantL'Auberge du Nord0.45 mi · 10 min walk · 1 min drive
- CaféSt John's Village Cafe0.16 mi · 3 min walk · 1 min drive
- SupermarketCo-operative Grand Marché3.9 mi · 84 min walk · 13 min drive
- AirportJersey Airport4.8 mi · 15 min drive
- Petrol stationSt John Fill up & Drive0.21 mi · 5 min walk · 1 min drive
- GP surgeryDental Practice & Island Medical Centre0.17 mi · 4 min walk · 1 min drive
- DentistBracken Barrett5.6 mi · 119 min walk · 18 min drive
- SchoolSt John's Primary School0.09 mi · 2 min walk · 0 min drive
- Hospital / medical centreUnnamed hospital3.9 mi · 84 min walk · 13 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.
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 John. Adjust build quality or size for this property
Value added is the extra floor area priced at £7,241/m² — the midpoint asking price per m² among 14 St John 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 |
£101,370 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£31,370 | 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 |
£144,814 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£84,814 | 86% (84) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£202,740 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£62,740 | 83% (193) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£78,200 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
−£11,800 | 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.
All 32 recorded sales on La Rue de la Mare Ballam
Planning history
| Application | Description | Status |
|---|---|---|
| P/2026/11152 | Convert existing outbuildings to garage, home gym and interior design studio. Alterations to existing vehicular access & construct boundary … | Approved Full record |
| P/2025/10093 | Alter to elevation and change of use of indoor swimming pool into 1No. 2 bed flat ancillary to existing dwelling. Extend hard landscaping to… | 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/2026/11152 — Garage / outbuilding / annexe
£31,250–£56,250Convert existing outbuildings to garage, home gym and interior design studio. Alterations to existing vehicular access &… - P/2025/10093 — Garage / outbuilding / annexe
£31,250–£56,250Alter to elevation and change of use of indoor swimming pool into 1No. 2 bed flat ancillary to existing dwelling. Extend…
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 John, 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.
