Guernsey planning applications
3,350 applications from the island's planning register. Search by address, reference or what was proposed.
10 applications matching “Outbuilding and” in 2025
| Address | Proposal | Reference | Decision |
|---|---|---|---|
| La Cachette Rue Des Mares St. Pierre Du Bois Guernsey GY7 9PZ | Variation to previously approved plans (FULL/2022/1957) to demolish existing outbuilding and erect residential dwelling with associated landscaping an | FULL/2025/0783 | Notification of Grant of Full Planning Permission. |
| Bon Port Farm La Rue Gros Jehan St. Martin Guernsey GY4 6EW | Demolish section of outbuilding and erect single storey extension to north elevation of outbuilding. Erect single storey outbuilding to north-east of | FULL/2025/1242 | Notification of Grant of Full Planning Permission. |
| Le Chalet Ruette Des Emrais Castel Guernsey GY5 7YD | Demolish outbuilding and glasshouse, erect single storey extension to east (side) elevation and alterations to fenestration, alter ground levels to wi | FULL/2025/1354 | Notification of Grant of Full Planning Permission. |
| Outbuilding and land at Rue de Calais Calais Lane St. Martin Guernsey | Demolish part of outbuilding to south-east and west, convert outbuilding to dwelling and erect extension to west. | FULL/2025/1391 | Notification of Grant of Full Planning Permission. |
| Tremel Rue De La Ronde Cheminee Castel Guernsey GY5 7GE | Demolish existing dwelling, greenhouse and outbuilding and erect new dwelling. Extend boundary wall to north elevation. | FULL/2025/1392 | Notification of Grant of Full Planning Permission. |
| Edgeborough House Grange Road St. Peter Port Guernsey GY1 1RH | Demolish outbuilding/garage, erect 1.5 storey domestic outbuilding and single storey covered area/car port, relocate oil tank, install hardstanding/ex | FULL/2025/1576 | Notification of Grant of Full Planning Permission. |
| Les Poiriers Les Effards Road St. Sampson Guernsey GY2 4YW | Demolish outbuilding and porch, erect extension at ground floor level to south (rear) elevation. Install external insulating render to south (rear) an | FULL/2025/1582 | Notification of Grant of Full Planning Permission. |
| Falstria Beaulieu Cresent Route Militaire St. Sampson Guernsey GY2 4EA | Demolish outbuilding and shed, erect single storey extension and wall and gate to west (side) elevation/boundary. | FULL/2025/1794 | Notification of Grant of Full Planning Permission. |
| White Lodge Les Vardes St. Peter Port Guernsey GY1 1BH | Raise and alter roof ridge height and extend and alter at basement/garage level, lower ground floor, ground floor and 1st floor levels, demolish exist | FULL/2025/1845 | PENDING |
| Dunes House The Dunes Vazon Road Castel Guernsey GY5 7LQ | Demolish glasshouse, erect single storey outbuilding and glasshouse to north boundary. | FULL/2025/1928 | Notification of Grant of Full Planning Permission. |
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
Geography
Where is the biggest price gap in Guernsey?
The median home in St Pierre du Bois asks £1,950,000; in Alderney it asks £445,000. Same island, 4.4× the price.
What would make this wrong: It compares what is on the market, not like for like. An area of large houses will always beat an area of flats, whatever the land underneath is worth.
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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.
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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
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.