HAFAN Bangor Street, Y Felinheli, Gwynedd, LL56 4JW Data via plota.co.uk

C26/0429/20/DT - Householder Planning In Progress

Proposal

Estyniad i deras presennol yn yr ardd gefn. Proposed extension to existing terrace to rear garden Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 Jul 2026
✓
Validated
22 Jul 2026
Decision
Expected by 16 Sept 2026

Under consideration

No decision has been issued yet. Plota predicts a decision by 8 Nov 2026, from Gwynedd's recent extensions.

The consultation period closed on 24 Aug 2026.

Site constraints 4

Radon affected area, class 6
An estimated 30% or more of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
Also on the record
6 listed buildings within 150 m of the postcode pin; Registered park or garden about 111 m away: Vaynol; Special area of conservation about 330 m away: Y Fenai a Bae Conwy / Menai Strait and Conwy Bay.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Gwynedd
Application type
Householder Planning
Postcode
LL56 4JW
Received
20 Jul 2026
Validated
22 Jul 2026
Ward
Bethel a'r Felinheli
Parish
Felinheli
Case officer
Show
Target decision
16 Sept 2026
Decision level
Dirprwyedig / Delegated
Applicant
Show
Agent
Cynllun Plans Drawn

Decision outlook

Day 79 of the 56-day target. Gwynedd usually decides extensions by day 85.

Day 796 days to the predicted decision (day 85)
28%decided within 8 weeks
94%approved
248decided in the last year

Plota live figures for extensions decided by Gwynedd in the last twelve months, from validation. Gwynedd decision record →

Consultation & key dates

Comments by
24 Aug 2026
Statutory expiry
16 Sept 2026