4 Penwethers Lane Truro Cornwall TR1 3PW Data via plota.co.uk

PA26/04259 - Full application Approved

Proposal

Construction of extension and alterations and new garage. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
29 Jun 2026
✓
Consultation
30 Jun 2026
✓
Approved
17 Aug 2026

Approved on 17 Aug 2026 · Peer Sign Off · Last checked 18 Aug 2026

Site constraints 3

Air quality management area: AQMA 6 - Truro
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
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 Truro built-up area.
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.

Building

Floor area66 m² (710 sq ft)
Energy ratingG (12 out of 100), could reach B
PropertyDetached bungalow, 6 habitable rooms
Built1900 to 1929
HeatingElectric storage heaters
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in January 2024, 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
TR1 3PW
Received
29 Jun 2026
Validated
29 Jun 2026
Ward
Truro Boscawen And Redannick
Parish
Truro
Case officer
Show
Target decision
24 Aug 2026
Decision
Approved with conditions
Decision date
17 Aug 2026
Decision level
Peer Sign Off
Agent
Tristram Stott Architects

How this decision compares

Decided in 49 days from validation, 5 days faster than Cornwall's median of 54 for demolitions. Approved, as 95% of demolitions here are.

78%decided within 8 weeks
95%approved
374decided in the last year

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

Public comments

No public comments yet.

4 neighbours consulted · Last counted 18 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15022646
Planning Portal ref
PP-15022646
Neighbours
30 Jun 2026
Consultation
30 Jun 2026
Comments by
21 Jul 2026
Site or press notice
30 Jun 2026
Statutory expiry
24 Aug 2026
Env. assessment
No
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.