Land Adj To Tophouse Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY Data via plota.co.uk

Decided PA25/07727
Council
Cornwall 7.9/10
Date received
around 27 Oct 2025
Date validated
27 Oct 2025
Postcode
TR20 8TY

Description

Change of use and conversion of a redundant traditional farm building to create a self-contained residential dwelling Data via plota.co.uk

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Last checked

Associated applications 2

Site constraints 2

Agricultural land, grade 3b
Not best and most versatile land (grades 1, 2 and 3a). Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s) agrees.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
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 ↗
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 22 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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Other new applications on this street

25 Sept 2026Pending

Land And Buildings SW Of Tophouse Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY

Change of use and conversion of redundant farm buildings to create a self-contai...

PA26/06207
18 Sept 2026Pending

Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY

Pre application advice for amendment to existing planning permission PA25/07727

PA26/01046/PREAPP

Nearby new applications

25 Sept 2026Pending

Land And Buildings SW Of Tophouse Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY

Change of use and conversion of redundant farm buildings to create a self-contai...

PA26/06207
18 Sept 2026Pending

Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY

Pre application advice for amendment to existing planning permission PA25/07727

PA26/01046/PREAPP

Historical activity at this location

1 nearby application on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
Land And Buildings SW Of Tophouse Tremethick Farm Tremethick Cross Penzance Cornwall TR20 8TY
Change of use and conversion of redundant farm buildings to create a self-contained resid…
PA25/07728
Cornwall
Planning Authority Score
7.9/10
Good
#28 of 296 councils
Relevant to this application:
Change of use

Cornwall is faster than most councils at deciding householder applications, ranking #64 out of 296. Householder applications are more likely to be approved here than most councils, with a 97% approval rate vs 90% nationally.

More permissive than most councils
97% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Cornwall decision statistics
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #79 of 296
97%
Householder approved
Above avg (90%) #28 of 296
76%
Decided in 8 weeks
Above avg (63%) #64 of 296
35%
Extended time limit
Below avg (41%) #101 of 296
82%
Minor dwellings approved
1180 decided (1-9 homes)
94%
Major dwellings approved
67 decided (10+ homes)
93%
Change of use approved
194 decided
4,839
Total decisions
363 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings