Guernsey planning applications
3,350 applications from the island's planning register. Search by address, reference or what was proposed.
36 applications matching “COBO”
| Address | Proposal | Reference | Decision |
|---|---|---|---|
| Les Trois Quartiers Route De Cobo Castel Guernsey GY5 7UP | Convert, extend and alter building to create dwelling and associated works. | FULL/2023/1340 | Notification of Refusal of Planning Permission. |
| Les Pieux Cobo Coast Road Castel Guernsey GY5 7HB | Change of use of opticians (Retail Use Class 10) to part of existing dwelling (Use Class 1). Demolish extensions, extend and alter at ground floor and | FULL/2023/1665 | Notification of Grant of Full Planning Permission. |
| Unit 4 Cobo Business Centre Clos de Salle Route de Carteret Castel Guernsey GY5 7YX | Change of use from Light Industry (Use Class 24) to an Office (Use Class 15). Install equipment antenna to south gable, install rooflights and alterat | FULL/2023/1759 | Notification of Grant of Full Planning Permission. |
| Les Trois Quartiers Route De Cobo Castel Guernsey GY5 7UP | Convert, extend and alter building to create dwelling and associated works (revised scheme). | FULL/2024/0006 | Notification of Refusal of Planning Permission. |
| L'Aumone House Route De Cobo Castel Guernsey GY5 7RW | Variation to previously approved plans to erect 9 dwellings with associated works, create vehicle access to east boundary - Install Juliet balconies a | FULL/2024/0147 | Notification of Grant of Full Planning Permission. |
| 14 Les Cherfs Estate Cobo Castel Guernsey GY5 7HG | Partially demolish conservatory, erect single storey extension to south (rear) elevation. | FULL/2024/0158 | Notification of Grant of Full Planning Permission. |
| Le Pins De Bas Route De Cobo Castel Guernsey GY5 7UR | Raise and alter roof form to create accommodation at 1st floor level, extend and alter at ground floor level and erect single storey detached outbuild | FULL/2024/0459 | Notification of Grant of Full Planning Permission. |
| Oceano Route De Cobo Castel Guernsey GY5 7HD | Erect 10m flag pole to west of property. | FULL/2024/0694 | Notification of Grant of Full Planning Permission. |
| Les Pins Farmhouse Route De Cobo Castel Guernsey GY5 7UW | Erect agricultural outbuilding/shed to south-west boundary. | FULL/2024/0613 | Notification of Grant of Full Planning Permission. |
| Bay House Cobo Coast Road Castel Guernsey GY5 7HH | Demolish existing dwelling, erect replacement dwelling with associated works, relocate vehicle access to north boundary and create pedestrian access t | FULL/2024/0814 | Notification of Grant of Full Planning Permission. |
| Mims Kiosk Cobo Coast Road Castel Guernsey GY5 7HH | Erect illuminated sign to south-west and north-east elevations and double sided advertising flag to east of the building. | FULL/2024/0914 | Notification of Refusal of Planning Permission. |
| Oceano Route de Cobo Castel Guernsey GY5 7HD | Erect chimney and alterations to fenestration to north (side) elevation. | FULL/2024/0937 | Notification of Grant of Full Planning Permission. |
| Dove Cottage Route De Cobo Castel Guernsey GY5 7HD | Partially demolish, extend and subdivide existing dwelling (Dove Cottage) to create 2 dwellings and erect 6 dwellings with associated works and alter/ | FULL/2024/0961 | Notification of Grant of Full Planning Permission. |
| L'Aumone House Route De Cobo L'Aumone Castel Guernsey GY5 7RT | Variation to previously approved plans to Erect 9 dwellings with associated works, create vehicle access to east boundary - Convert Unit 5 & 6 from 2 | FULL/2024/0964 | Notification of Grant of Full Planning Permission. |
| Cobo Rocks (Formerly Shoreline) Cobo Coast Road Castel Guernsey GY5 7HE | Demolish building, erect dwelling, pergola and associated works, create pedestrian access, alter existing vehicle access and erect gate to east bounda | FULL/2024/1557 | Notification of Grant of Full Planning Permission. |
| Existing Building at L'Aumone Medical Centre Route de Cobo Castel Guernsey GY5 7RU | Install 4 condenser units to flat roof over main entrance. | FULL/2024/1609 | Notification of Grant of Full Planning Permission. |
| Existing Building at L'Aumone Medical Centre Route de Cobo Castel Guernsey GY5 7RU | Install 4 air conditioning units to east (side) elevation. | FULL/2024/1611 | Application Withdrawn |
| Grande Rocque Bistro Rue De La Saline Cobo Castel Guernsey GY5 7XG | Change of use of restaurant; ground floor to a premises of multiple occupation (Use Class 6) and first floor to office (Use Class 15). Install lift to | FULL/2024/1903 | Application Withdrawn |
| L'Aumone Medical Centre Route de Cobo L'Aumone Castel Guernsey GY5 7RU | Install 6 air conditioning units and VAM (air to air heat exchanger) unit to flat roof to east of site. | FULL/2024/1938 | Notification of Grant of Full Planning Permission. |
| Hermes House Route De Cobo Castel Guernsey GY5 7RZ | Erect pergola to south (front) of property (retrospective). | FULL/2024/2087 | Notification of Grant of Full Planning Permission. |
| Mouliere Route De Carteret Cobo Castel Guernsey GY5 7YU | Demolish conservatory and erect single storey extension to north (rear) elevation. | FULL/2025/1127 | Notification of Grant of Full Planning Permission. |
| Abri Du Guet Cobo Coast Road Castel Guernsey GY5 7HE | Demolish extensions, erect single storey extension to south-east (rear) elevation. | FULL/2025/1232 | Notification of Grant of Full Planning Permission. |
| La Bouverie Route De Cobo Castel Guernsey GY5 7UR | Erect one and a half storey extension with first floor terrace to south elevation. Infill existing vehicle access (adjacent to south boundary) and cre | FULL/2025/1254 | Notification of Grant of Full Planning Permission. |
| Cobo Bay Hotel Cobo Coast Road Castel Guernsey GY5 7HB | Demolish roadside wall to west elevation, erect new boundary wall and install two planters. | FULL/2025/1393 | Notification of Grant of Full Planning Permission. |
| L'Aumone House Route De Cobo L'Aumone Castel Guernsey GY5 7RT | Erect single storey extension to north (rear) elevation. | FULL/2025/1543 | Notification of Grant of Full Planning Permission. |
| L'Aumone House Route De Cobo L'Aumone Castel Guernsey GY5 7RT | Erect 1.5 storey outbuilding/garage/gym to north-west boundary. | FULL/2025/1614 | Notification of Grant of Full Planning Permission. |
| L'Aumone House Route De Cobo L'Aumone Castel Guernsey GY5 7RT | Variation to plans previously approved to erect 9 dwellings with associated works, create vehicle access to east boundary - Retain driveway to L'Aumon | FULL/2025/1632 | Notification of Grant of Full Planning Permission. |
| Cape Cod Rue De La Saline Cobo Castel Guernsey GY5 7XF | Demolish extension, extend and alter at ground floor level and 1st floor level, including balcony to west (front) elevation, install external insulati | FULL/2025/1836 | Notification of Grant of Full Planning Permission. |
| Cobo Bay Hotel Cobo Coast Road Castel Guernsey GY5 7HB | Extend and alter at ground floor, 1st floor and 2nd floor levels and raise and alter roof form to create 3rd floor level to west (front) elevation, in | FULL/2025/1841 | Notification of Grant of Full Planning Permission. |
| Cobo Bay Hotel Cobo Coast Road Castel Guernsey GY5 7HB | Extend and alter staff accommodation at ground and 1st floor levels and raise roof ridge height to create 2nd floor level, including walkway at 1st fl | FULL/2025/1843 | Notification of Grant of Full Planning Permission. |
| Le Petit Refuge Route De Cobo Castel Guernsey GY5 7US | Demolish chimney, erect single storey extension and install rooflights to west (rear) elevation and alterations to fenestration. | FULL/2025/1935 | Notification of Grant of Full Planning Permission. |
| Land Area At L'Estrainfer (East Of Slipway) Cobo Coast Road Castel Guernsey | Install a hammerhead shark bin structure. | FULL/2025/1966 | Notification of Grant of Full Planning Permission. |
| Fleurs Des Iles Route De Cobo Castel Guernsey GY5 7UP | Erect single storey outbuilding/outdoor kitchen to east boundary and alterations to landscaping. | FULL/2026/0060 | Notification of Grant of Full Planning Permission. |
| Shoreline Cobo Coast Road Castel Guernsey GY5 7HF | Erect carport to north-east elevation, erect cladded wall and pergola to west boundary. | FULL/2026/0111 | Notification of Grant of Full Planning Permission. |
| Hakone Route De Cobo Castel Guernsey GY5 7US | Change of use of part of ancillary domestic building/garage to be used for dog grooming business (Use Class 5). | FULL/2026/0929 | Notification of Grant of Full Planning Permission. |
| Grandes Rocques Bistro Rue De La Saline Cobo Castel Guernsey GY5 7XG | Demolish extension, external staircase, remove chimney vents. Extend balcony at first floor level and alter wall to west (front) elevation, erect relo | FULL/2026/1199 | PENDING |
What people apply for, and what gets approved
3,176 decided applications, grouped by what was being asked for. 93% are granted overall — the interesting part is the spread.
| What was applied for | Decided | Granted | Refused | Success rate |
|---|---|---|---|---|
| Extension | 835 | 770 | 51 | 94% |
| Walls, fences and access | 455 | 404 | 43 | 90% |
| Internal alterations | 401 | 375 | 16 | 96% |
| Demolish and rebuild | 296 | 257 | 33 | 89% |
| Garage, annexe or outbuilding | 290 | 263 | 21 | 93% |
| Windows and doors | 250 | 237 | 8 | 97% |
| Change of use | 176 | 145 | 20 | 88% |
| Roof works | 102 | 98 | 2 | 98% |
| Garden building | 88 | 78 | 5 | 94% |
| Signs and shopfronts | 62 | 56 | 3 | 95% |
| Loft or dormer | 59 | 58 | 1 | 98% |
| New dwelling | 49 | 43 | 5 | 90% |
| Trees and landscaping | 31 | 29 | 1 | 97% |
| Two-storey extension | 28 | 25 | 3 | 89% |
| Solar or heat pump | 25 | 21 | 2 | 91% |
| Porch | 22 | 22 | 0 | 100% |
Withdrawn applications are counted in "decided" but never in a success rate — a withdrawal is usually a redesign, not a refusal. Categories are matched from the application's own wording, so a description mentioning two kinds of work lands in the first that fits.
While you are here
What things cost
Which bedroom costs the most in Guernsey?
Going from 4 bedrooms to 5 adds £405,000 to the median asking price — more than any other step on the ladder.
What would make this wrong: A 5-bed house is not a 4-bed house with a room added — it is usually a bigger plot in a different place. This is the price of a different kind of home, not the price of a bedroom.
See what this is built from
History
Has Guernsey property ever actually fallen?
Yes — 2016 was down 4.1% on the year. Across the whole series the index has gone from 100 in 1995 to 591.2, but it has not been a straight line.
See what this is built from
How people behave
How long do people keep a home here?
Half of all repeat sales are 3.1–9.9 years apart, with a median of 5.5 years. That is how often a given address comes back to the market.
See what this is built from
Everything the data says about Guernsey
More ways into Guernsey
Planning records are a paper trail: an approval means permission was granted, not that the work was carried out. Our copy is refreshed nightly (last read 2026-08-20); for the live position on a specific application, go to States of Guernsey planning register.