Room, 29, Clos Des Mielles, Route De La Mare De Carteret, Castel
Description
A furnished double bedroom is available to rent within a four bedroom Local Market share house. The property is within walking distance to Cobo Beach and local amenities.
The room is located on the first floor, fully furnished. The shared accommodation comprises an entrance hallway, a W.C, a bright kitchen/diner, spacious living room, and a modern bathroom. Externally, the property offers a lawned garden with a shed for storage only. The room is available immediately.
Not marked as sole agency on the original listing, so this property may also be marketed by other agents not captured in this data.
A useful first look
Explore rooftop solar potential
Explore the official Guernsey rooftop map and our guide to the checks that matter. Find the correct building on the map; we have not matched or assessed this property’s roof.
Indicative map only—not a roof survey, energy quote or planning approval. For a flat or rented home, check who controls the roof.
Nearby
- SchoolLa Mare de Carteret Primary School0.30 mi · 7 min walk · 1 min drive
- Nursery / pre-schoolWoodlands1.8 mi · 40 min walk · 6 min drive
- GP surgeryHealthcare Cobo Surgery0.29 mi · 6 min walk · 1 min drive
- PharmacyLloyds Pharmacy1.6 mi · 35 min walk · 5 min drive
- DentistUnnamed dentist2.2 mi · 48 min walk · 7 min drive
- SupermarketM&S Simply Food2.4 mi · 52 min walk · 8 min drive
- PubPublic Bar0.44 mi · 10 min walk · 1 min drive
- RestaurantGrandes Rocques Bistro0.28 mi · 6 min walk · 1 min drive
- CaféCobo Bakes0.06 mi · 1 min walk · 0 min drive
- Petrol stationGrandes Rocques Garage0.24 mi · 5 min walk · 1 min drive
- AirportGuernsey Airport4.4 mi · 14 min drive
- BeachSaline Bay0.18 mi · 4 min walk · 1 min drive
- Park or gardenSaumarez Park1.1 mi · 24 min walk · 4 min drive
Nearest match in each category, from the island place register (OpenStreetMap plus local sources) — a broad list, not a guarantee that every business is included. 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 Guernsey's roads and 25/35mph 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.
Telecoms masts nearby
- 208 m — Pumping Station, Cobo Coast Road, Cobo, monopole, 11m (Airtel)
Measured by the regulator at 0.012% of the ICNIRP public exposure guideline. - 707 m — 49.47611930155045,-2.583309132402032, monopole, 8m (Sure)
Measured by the regulator at 0.2489% of the ICNIRP public exposure guideline. - 900 m — Guernsey Indoor Bowling Assocation The Guernsey Bowls Stadium Hougue du Pommier, monopole, 15m (Sure)
Measured by the regulator at 0.111% of the ICNIRP public exposure guideline.
The nearest licensed mast site is 208 m away in a straight line — not walking distance, and not necessarily visible from the property. From the Guernsey Competition and Regulatory Authority’s mast audit register, read 2026-10-18.
It does not say which masts carry 5G. The regulator’s register records the operators, the height, the structure and the measured emissions — it records no radio technology, so this site cannot identify a 5G site and does not guess. 5G reached Guernsey in early 2026 and the first sites were in and around St Peter Port.
The emission figures are the regulator’s own measurements, expressed as a percentage of the ICNIRP international public exposure guideline. Across all 91 sites in the Bailiwick the median reading is 0.176% of that guideline and the highest is 11.24%. This site reports those numbers and draws no conclusion from them either way; the GCRA publishes the full audit for each site.
What would improving it be worth?
Value added is the extra floor area priced at £5,776/m² — the midpoint asking price per m² among 92 Guernsey properties currently for sale that publish a floor area. Cost uses real Guernsey build rates: £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 Guernsey actually grants that kind of application.
| Improvement | Value it might add | Likely cost | Net | Granted |
|---|---|---|---|---|
| Add a bedroom (single-storey extension) A modest double plus circulation, built new. ~14 m² |
£80,862 | £70,000 14 m² · mid spec new build range £56,000–£84,000 |
+£10,862 | 97% (1,533) |
| 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 |
£115,517 | £60,000 20 m² · mid spec refurb range £40,000–£80,000 |
+£55,517 | 97% (153) |
| Two-storey extension Roughly 14 m² on each of two floors. ~28 m² |
£161,724 | £140,000 28 m² · mid spec new build range £112,000–£168,000 |
+£21,724 | 93% (87) |
| Garage, annexe or outbuilding Detached space is worth less per m² than main-house floor area. ~18 m² |
£62,379 | £90,000 18 m² · mid spec new build range £72,000–£108,000 |
−£27,621 | 90% (762) |
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, because Guernsey's sold register records no floor areas at all — so it reflects what sellers ask, not what buyers paid.
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 around £430,000 island-wide. It isn't — a 4-bed is generally 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 — who is actually filing applications shows which firms are active and how often their applications succeed.
Building work on this property
Architects with planning applications on file in the same parish as this property — not a claim any of them worked on this specific property, just a proximity signal:
Same estimate model this site uses on its planning pages (Channel Islands-adjusted UK cost ranges) — a rough starting point, not a quote. Always get quotes from a Guernsey builder before budgeting.
See also all Guernsey property professionals — architects, surveyors, mortgage brokers and trades.
Sale history
No prior sale found in the Guernsey property register for this address.
All 18 recorded sales on Route de la Mare de Carteret
Planning history
| Application | Description | Status |
|---|---|---|
| FULL/2026/1205 | Erect detached outbuilding/garden room, install hardstanding and external steps to north of site (Revised Scheme). | Pending Application details Official record |
| FULL/2025/1467 | Erect detached outbuilding/garden room, install hardstanding and external steps to north of site. | Granted Application details Official record Decision notice (PDF) |
Matched by house name/street and parish against Guernsey planning applications decided between 25 Aug 2021 and 13 Oct 2026 — coverage is partial and not a unique-ID lookup. No bare decision date is available in this data, so the application number (which embeds its year) is shown instead. Where a "Worked on by" name appears, it's a known architect or surveyor cross-referenced by the same application number — worth a call before commissioning a fresh survey.
Search full planning history for this address (live, back to 2009)
Estimated cost of live planning permissions
Guernsey planning permissions lapse 3 years after grant if unbuilt; these applications fall inside that window and were not refused, so they are presumptively still capable of being implemented.
- FULL/2026/1205 — Garage / outbuilding / annexe
£31,250–£56,250Erect detached outbuilding/garden room, install hardstanding and external steps to north of site (Revised Scheme). - FULL/2025/1467 — Garage / outbuilding / annexe
£31,250–£56,250Erect detached outbuilding/garden room, install hardstanding and external steps to north 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.
Latest to rent
