5 St. Josephs Avenue, Londonderry, BT48 6TH Data via plota.co.uk

Consultation Open LA11/2026/0723/F - Full
Date received
2 Oct 2026
Date validated
2 Oct 2026
Postcode
BT48 6TH
Type
Full

Description

Proposed single storey rear extension to dwelling Data via plota.co.uk

Last checked

Decision outlook

Plota predicts a decision between 1 Dec 2026 and 24 Dec 2026, from Derry and Strabane's recent extensions.

Day 7 of the 56-day target. Derry and Strabane usually decides extensions by day 69.

Day 762 days to the predicted decision (day 69)
39%decided within 8 weeks
100%approved
108decided in the last year

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

Site constraints 1

Radon affected area, class 5
An estimated 10 to 30% 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 ↗
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 8 October 2026. 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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