Polwainton Casterills Road Helston Cornwall TR13 8BJ Data via plota.co.uk

PA26/05747 - Application under Section 73 of TCP Act Awaiting decision
Extensions & alterations

Proposal

Alterations and extension to dwelling with variation of Condition 2 of Decision Notice dated 29.05.2025 Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
18 Aug 2026
✓
Consultation
24 Aug 2026
Decision
Expected by 13 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 11 Oct 2026, from Cornwall's recent extensions.

The consultation period closed on 14 Sept 2026.

Documents 1

Application forms 1

PDF APPLICATION FORM Application Form · 18 Aug 2026 View ↗

All documents on the council site ↗

Associated applications 2

  • Part of

    FullApprovedcouncil archive

    Conditions 2 variation sought

    • VariationAlterations and extension to dwelling with variation of Condition 2This applicationPA26/05747

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
Conservation area 64 m away: Helston - Meneage Road; Inside the Helston built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 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.

Sales history 1

Last sold for £333,220 in July 2024. Detached house, freehold.

29 July 2024£333,220

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area88 m² (947 sq ft)
Energy ratingD (62 out of 100), could reach B
PropertyDetached bungalow, 4 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, no insulation (assumed)

From the energy performance certificate lodged in August 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Cornwall
Application type
Application under Section 73 of TCP Act
Postcode
TR13 8BJ
Received
18 Aug 2026
Validated
18 Aug 2026
Ward
Helston South And Meneage
Parish
Helston
Case officer
Show
Target decision
13 Oct 2026
Applicant
Show
Agent
Show

Decision outlook

Day 52 of the 56-day target. Cornwall usually decides extensions by day 54.

Day 524 days to the 56-day target
84%decided within 8 weeks
95%approved
100%go to committee

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

Public comments

No public comments yet.

4 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15133095
Planning Portal ref
PP-15133095
Neighbours
24 Aug 2026
Consultation
24 Aug 2026
Comments by
14 Sept 2026
Statutory expiry
13 Oct 2026
Env. assessment
No

Historical activity at this location

2 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Alterations and extension to dwelling
PA25/01877
Within ~100m

Nearby activity

2021 Approved
Downside Casterills Road Helston TR13 8BJ
Erection of a detached single-storey annexe ancillary to the principal dwellinghouse
PA21/00613
Cornwall
Planning Authority Score
7.9/10
Good
#28 of 296 councils
Relevant to this application:
Householder decisions

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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.