Castle Quay, St. Helier, St Helier
Description
The property is located within Millais House on St Helier’s Waterfront, forming part of the impressive Castle Quay development. The location benefits from being just a 10 minutes’ walk to St Helier town centre and close to numerous amenities including the marinas, the ferry terminal, bus station, Fitness First, the Cinema and AquaSplash. The premises are zoned for Health/Medical & Office usage and consist of stunning ground and first floor medical/wellness centre style accommodation. The unit has been fully fitted out to an exceptionally high standard throughout, providing 10 spacious private Office/Treatment style rooms, which are served off an impressive full-height Reception area with vaulted ceilings. Dimensions The approximate internal areas are as follows: Ground Floor - 1,710sq.ft. First/Mezzanine Floor - 1,356sq.ft. Total: 3,066 sq.ft. Current Position The premises are currently owner occupied, with the owners looking to relinquish ownership of the premises. Several of the rooms are currently let out to other health professionals, which generates a significant yearly income. The current owners are flexible but would at a preference like to retain a couple of the treatment rooms for their own business purposes and pay rent accordingly to the new owners / investors. N.B. - Additional rooms are also available for potential owner occupational purposes. Tenure The property is being offered for sale Freehold fully fitted out. Please call Sarre & Co on 880 880. Please note that all areas and measurements given in these particulars are approximate and rounded. The text, photographs and floor plans are for general guidance only. Once an offer is accepted and negotiations for the purchase of a property are entered into, the prospective purchasers will be asked to produce…
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
- PubSo Bar0.25 mi · 5 min walk · 1 min drive
- RestaurantPizza Hut0.09 mi · 2 min walk · 0 min drive
- CaféCooper's & Co.0.02 mi · 0 min walk · 0 min drive
- SupermarketAlliance0.38 mi · 8 min walk · 1 min drive
- AirportJersey Airport5.0 mi · 16 min drive
- Petrol stationMorrisons Daily0.42 mi · 9 min walk · 1 min drive
- GP surgeryCastle Quay Medical Practice0.06 mi · 1 min walk · 0 min drive
- DentistConfidence Dental Care0.04 mi · 1 min walk · 0 min drive
- SchoolHelvetia House School0.66 mi · 14 min walk · 2 min drive
- Hospital / medical centreGeneral Hospital0.45 mi · 10 min walk · 1 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.
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 Helier, 158.9 m² of known floor area. Adjust build quality or size for this property
Value added is the extra floor area priced at £6,818/m² — the midpoint asking price per m² among 219 St Helier 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 |
£95,455 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£25,455 | 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 |
£136,364 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£76,364 | 86% (84) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£190,909 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£50,909 | 83% (193) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£73,636 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
−£16,364 | 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 16 recorded sales on Castle Quay
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 Helier, 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.
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