Seion, Gwynedd Planning Applications
Recent planning applications near Seion, Gwynedd.
Gwynedd · Wales · settlement
Enter a postcode to search for planning applications near Seion.
Town Insights
Property Prices
Average property sale price: £197,252 (based on 50 recent transactions from HM Land Registry).
Area Information
- Admin district: Gwynedd
- Parliamentary constituency: Dwyfor Meirionnydd
- LSOA: Gwynedd 006B
Crime Statistics
0 crimes reported in 2026-02.
Flood Risk
No active flood warnings near Seion.
Keyword Scorecard
Planning constraint analysis based on the last 24 months of applications near Seion.
- Ecology & Wildlife Constraints (keywords: bats, bat survey, bat roost, great crested newt, GCN...)
- Trees & Landscape (keywords: tree preservation order, TPO, arboricultural, tree survey, root protection area...)
- Flood & Drainage (keywords: flood zone 2, flood zone 3, flood risk assessment, FRA, surface water...)
- Heritage & Conservation (keywords: listed building, grade II, grade II*, grade I, conservation area...)
- Green Belt (keywords: green belt, inappropriate development, very special circumstances, openness)
- Highways & Access (keywords: visibility splays, highway authority objection, access arrangement, parking provision, transport statement...)
- Refusal & Risk Indicators (keywords: refusal, delegated refusal, appeal dismissed, overdevelopment, character and appearance...)
- Planning Process & Appeals (keywords: appeal lodged, appeal allowed, appeal dismissed, public inquiry, inspector)
Planning Activity Summary
Approval rates, average decision times, and application type distribution for Seion based on the last 24 months of planning data.
Nearby Applications
25 planning applications found near Seion.
- - Land At The Stables, North Of Cae Rhos Terrace,, Seion, LL55 3AG
Darparu un lle ar gyfer sipsiwn a theithwyr yn cynnwys un siale statig, un carafán teithiol, trosi bloc stabl unllawr carreg presennol yn ystafell dydd/gyfleustodau, parcio ar y safle a chyfleusterau
Type: Full | Council: Gwynedd | Date: 2025-09-11
View full details - - Land At The Stables, North Of Cae Rhos Terrace,, Seion, LL55 3AG
Un safle teithwyr sipsi yn cynnwys un sialet sefydlog, un carafán deithiol, addasu bloc stabl un llawr presennol yn ystafell ddydd / ystafell amlbwrpas, cyfleusterau parcio a throi ar y safle, mynedfa
Status: Rejected | Type: Full | Council: Gwynedd | Date: 2025-02-10
View full details - - Tŷ'n Llidiart, Seion, Caernarfon, Gwynedd, LL55 3AG
Rhyddhau amod 4 adroddiad ecolegol o gais cynllunio C22/0934/18/LL / Release of condition 4 ecological report of planning application C22/0934/18/LL
Status: Conditions | Type: Conditions | Council: Gwynedd | Date: 2023-05-03
View full details - - Llys Gwynt, Seion, Caernarfon, Gwynedd, LL55 3AG
Cais i ddiwygio Amod 2 o ganiatâd cynllunio C21/0817/18/LL ar gyfer adeiladu sied amaethyddol, i gynnwys storfa biswail o dan y llawr, er mwyn newid safle a maint yr adeilad. / Application for a varia
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2023-03-29
View full details - - 4 Cae Rhos Terrace, Seion, Caernarfon, Gwynedd, LL55 3AG
Codi estyniad cefn deulawr ynghyd â newidiadau cysylltiedig / Erection of two storey rear extension along with associated alterations.
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2023-03-15
View full details - - Tŷ'n Llidiart, Seion, Caernarfon, Gwynedd, LL55 3AG
Estyniad ac addasiadau i'r eiddo. Extension and alterations to dwelling.
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2023-01-11
View full details - - Tŷ'n Llidiart, Seion, Caernarfon, Gwynedd, LL55 3AG
Codi stablau arfaethedig / Construction of proposed stables
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2022-10-11
View full details - - Llys Gwynt, Seion, Caernarfon, Gwynedd, LL55 3AG
Adeiladu sied amaethyddol i gynnwys storfa biswail o dan y llawr ac i gartrefu gwartheg dros y gaeaf/Erection of an agricultural shed to include underfloor slurry storage and to accommodate cattle dur
Status: Permitted | Type: Full | Council: Gwynedd | Date: 2021-08-18
View full details - - Coedwig Pen Y Graig, Seion, Caernarfon, LL55 3AH
Estyniad i'r sied coedwigaeth presennol a chodi strwythur newydd at ddibenion coedwigaeth/Extension to existing forestry shed and erection of a new structure for forestry purposes.
Status: Permitted | Type: Outline | Council: Gwynedd | Date: 2021-02-16
View full details - - Cae Rhos, Llandeiniolen, LL55 3AG
Addasu ac ymestyn yr adeilad allanol i'w ddefnyddio ar gyfer uned wyliau/Conversion and extend outbuilding for use as a holiday unit.
Status: Withdrawn | Type: Full | Council: Gwynedd | Date: 2020-08-03
View full details - - Coed Bach Pengraig, Argraig, Seion, Llanddeiniolen, Caernarfon, Gwynedd, LL55 3AG
Sied ar gyfer defnydd coedwigaeth, rhodfa a llecyn parcio (cais rhannol ol-weithredol) / Shed for forestry use, trackway and parking space (part retrospective application)
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2017-11-23
View full details - - Coed Bach, Pengraig, Argraig, Seion, Llanddeiniolen, Caernarfon, Gwynedd, LL55 3AG
Sied ar gyfer pwrpas coedwigaeth / Shed for forestry purposes
Status: Permitted | Type: Outline | Council: Gwynedd | Date: 2017-10-12
View full details - - Pen y Graig, SEION, Caernarfon, Gwynedd LL55 3AH
Estyniad a newidiadau gan gynnwys codi'r to gosod ffenestri dormer a feranda newydd / Extension and alterations including raising the roof, inserting dormer windows and a new verandah
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2017-06-13
View full details - - Coedwig Pen y Graig, Seion, Y Felinheli, Gwynedd, LL55 3AG
Codi adeilad at ddibenion coedwigaeth/Erection of building for forestry purposes.
Status: Conditions | Type: Outline | Council: Gwynedd | Date: 2016-05-24
View full details - - Llys Gwynt, Llanddeiniolen, Caernarfon, LL553AG
ADEILADU LOLFA HAUL AR FLAEN TY ANNEDD / CONSTRUCTION OF CONSERVATORY TO FRONT OF DWELLING HOUSE
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2012-07-18
View full details - - Llys Gwynt, Llanddeiniolen, Caernarfon, LL553AG
LLEOLI TYRBEIN GWYNT 20M O UCHDER I'R HYB A 27.1M I PEN Y LLAFNAU YNGHYD AC OFFER CYFARPAR / SITING OF 20M HIGH WIND TURBINE TO HUB AND 27.1M TO BLADE TIP TOGETHER WITH ASSOCIATED EQUIPEMENT
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2012-03-20
View full details - - Tyn Llidiart, Llanddeiniolen, Caernarfon, LL553AG
GOSOD TWNEL POLI ER MWYN TYFU FFRWYTHAU A LLYSIAU / SITING OF POLY TUNNEL FOR GROWING FRUITS AND VEGETABLES
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2012-01-16
View full details - - TYDDYN LLIDIART, SEION, LLANDDEINIOLEN, CAERNARFON, GWYNEDD, LL55 3AG
NEWIDIADAU I'R FYNEDFA BRESENNOL I GREU MYNEDFA PRESWYL AC AMAETHYDDOL / ALTERATIONS TO THE EXISTING ACCESS TO CREATE A RESIDENTIAL AND AGRICULTURAL ACCESS
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2009-11-24
View full details - - Argraig, Seion, Caernarfon, Gwynedd, LL55 3AG
ESTYNIAD WYDR / CONSERVATORY EXTENSION
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2007-01-02
View full details - - TAN YR WYLFA, LLANDDEINIOLEN, CAERNARFON, GWYNEDD, LL553AB
ADDASU ADEILAD ALLANOL I DDAU UNED GWYLIAU / CONVERSION OF OUTBUILDING TO PROVIDE TWO HOLILDAY UNITS
Status: Conditions | Type: Full | Council: Gwynedd | Date: 2006-08-01
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A brief summary of Seion in Gwynedd
Seion is a settlement located in Gwynedd, Wales.
Property prices in Seion show an average sale price of £197,252, based on 50 recent transactions recorded by HM Land Registry.
There were no crimes reported in the immediate area during the most recent reporting period. This makes Seion a particularly low-crime area.
For anyone interested in property development or monitoring local planning decisions, Seion planning applications can be searched by entering a local postcode above. Results include full application details, decision status, and the ability to track applications over time and set planning alerts to help you monitor and review pending planning applications.
Planning Activity in Seion
In the last 24 months, 4 planning applications were submitted near Seion. Of these, 0% were approved.
This is below the national average of approximately 87%, which may reflect stricter local policies, sensitivity of the area, or higher levels of speculative applications. Pre-application advice is particularly worthwhile near Seion.
The most common application types near Seion were full planning applications (3), discharge of conditions (1). Full planning applications account for 75% of all submissions, covering new builds, change of use, and works that go beyond permitted development rights.
Nearby Towns
Explore planning applications in nearby areas:
- Llanddeiniolen planning applications
- Fachell planning applications
- Capel-y-graig planning applications
- Vaynol Hall planning applications
- Y Felinheli planning applications
- Penrhos-garnedd planning applications
- Waun planning applications
- Bethel planning applications
Related Planning Guides
- What Is Planning Permission in the UK? — Planning permission is the formal approval you need from your local council before making certain changes to a building or piece of land.
- What Is Permitted Development? — Permitted development rights allow certain building works and changes of use without the need to apply for planning permission.
- How Long Does Planning Permission Take? — Typical timelines for planning permission decisions in the UK, from submission to approval, and what can cause delays.