Guernsey planning applications
3,350 applications from the island's planning register. Search by address, reference or what was proposed.
9 applications matching “BASEMENT” in 2026
| Address | Proposal | Reference | Decision |
|---|---|---|---|
| Saints Farm Icart Road St. Martin Guernsey GY4 6 | Variations to previously approved plans for change of use of agricultural land to domestic garden (4,255sqm), demolish extensions, demolish and rebuil | FULL/2026/0113 | Notification of Grant of Full Planning Permission. |
| Vue Des Iles 22 Hauteville St. Peter Port Guernsey GY1 1DG | Erect two-storey extension (basement and lower ground floor) to east (rear) elevation incorporating balcony and privacy screen wall and erect 3 storey | FULL/2026/0419 | Notification of Grant of Full Planning Permission. |
| 34-36 High Street St. Peter Port Guernsey GY1 2JU | Excavation works and internal alteration to basement level and internal alterations at ground floor level (Protected Building). | FULL/2026/0440 | Notification of Grant of Full Planning Permission. |
| Les Pies Ville Es Pies Vale Guernsey GY3 5NF | Extend at basement and ground floor levels, alterations to fenestration to east (front) elevation and landscaping to create additional parking area. | FULL/2026/0465 | Notification of Grant of Full Planning Permission. |
| Penhill Rue De La Boullerie St. Andrew Guernsey GY6 8XF | Raise ridge height and alter roof form, replace dormer windows, rebuild chimneys, and install light wells and windows to basement level with railings | FULL/2026/0474 | Notification of Grant of Full Planning Permission. |
| Val Au Bourg Saints Bay Road St. Martin Guernsey GY4 6ES | Variation to previously approved plans to demolish existing dwelling, erect replacement dwelling and associated works, infill existing vehicle access | FULL/2026/0954 | PENDING |
| Mountville 32 Mount Row St. Peter Port Guernsey GY1 1NT | Variation to previously approved plans to demolish extension, porch and chimneys, infill light well and basement level, erect 2 storey and single stor | FULL/2026/1025 | Notification of Grant of Full Planning Permission. |
| 6-8 High Street St. Peter Port Guernsey GY1 2LB | Change of use of basement, ground floor and first floor, from use class 15 to general retail (use class 10), second floor retained as admin, financial | FULL/2026/1045 | PENDING |
| Aux Cordiers La Couperderie St. Peter Port Guernsey GY1 1NH | Demolish extension/outbuilding, extend and alter at basement and ground floor levels to west (rear) elevation, erect extension at 1st floor level to s | FULL/2026/1114 | 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.
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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.
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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.
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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.