13 Carnsew Close Mabe Burnthouse Penryn Cornwall TR10 9HE Data via plota.co.uk

PA26/05329 - Full application Approved

Proposal

Alterations and extension to dwelling. Data via plota.co.uk

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View original council record ↗Last checked 8 Oct 2026, 01:26

Street View

Application progress

✓

Received

30 Jul 2026

✓

Consultation

10 Aug 2026

✓

Approved

1 Oct 2026

Approved on 1 Oct 2026 · Self Sign Off (Area Team) · Last checked 2 Oct 2026

Documents 5

Site constraints 4

Public bridleway 20 m away

Matters where it crosses or adjoins the site: obstructing a path without a diversion order is an offence, and work cannot start until the order is confirmed.

Compiled from highway authority data, not the legal definitive map. A few authorities have not published, so no path shown is not proof there is none.

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

Inside the Mabe Burnthouse 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 6

Last sold for £246,950 in December 2014. Detached house, freehold.

19 December 2014£246,950

16 December 2011£237,000

25 August 2009£205,000

1 February 2007£92,000

16 April 1999£68,000

23 December 1996£57,000

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

Building

Floor area80 m² (861 sq ft)

Energy ratingD (66 out of 100)

PropertyDetached bungalow, 4 habitable rooms

Built1950 to 1966

HeatingBoiler and radiators, mains gas

WallsCavity wall, filled cavity

From the energy performance certificate lodged in October 2011, 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: Full application
Postcode: TR10 9HE
Received: 30 Jul 2026
Validated: 30 Jul 2026
Ward: Constantine, Mabe And Mawnan
Parish: Mabe
Case officer: Show
Target decision: 24 Sept 2026
Decision: Approved with conditions
Decision date: 1 Oct 2026
Decision level: Self Sign Off (Area Team)
Applicant: Show
Agent: Show

How this decision compares

Decided in 63 days from validation, 9 days slower than Cornwall's median of 54 for extensions. Approved, as 95% of extensions here are.

This one63d

Council54d

UK55d

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.

2 neighbours consulted · Last counted 2 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference: PP-15122933
Planning Portal ref: PP-15122933
Neighbours: 10 Aug 2026
Consultation: 10 Aug 2026
Comments by: 29 Sept 2026
Site or press notice: 8 Sept 2026
Statutory expiry: 24 Sept 2026
Env. assessment: No

Historical activity at this location

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

Within ~100m

Nearby activity

2023 Approved

15 Gweal Darras Mabe Burnthouse Penryn Cornwall TR10 9HQ

Proposed extension and enlargement of parking area

PA23/02927 30 May 2023

2020 Approved

3 Carnsew Close Mabe Burnthouse TR10 9HE

Proposed new residential annex to existing dwelling, new garage to replace existing and r…

PA20/06054 3 Sep 2020

2020 Approved

26 Carnsew Close Mabe Burnthouse TR10 9HE

Proposed dormer extension to rear elevation, new small conservatory to rear, and new porc…

PA20/03701 19 Jun 2020

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

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.