Treviades Wollas Treviades Constantine Falmouth Cornwall TR11 5RG Data via plota.co.uk

PA26/03479 - Full application Approved
Extensions & alterations

Proposal

Extension and alterations to an existing barn conversion to form a new Orangery. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
28 May 2026
✓
Consultation
28 May 2026
✓
Approved
13 Jul 2026

Approved on 13 Jul 2026 · Self Sign Off (Area Team) · Last checked 14 Jul 2026

Documents 7

Decision & officer reports 2

PDF ACFULZ - CONDITIONAL APPROVAL Decision Notice · 13 Jul 2026 View ↗ PDF DREPORT DELEGATED OFFICER REPORT Officer Report · 13 Jul 2026 View ↗

Statements & assessments 4

PDF DESIGN AND ACCESS STATEMENT Statement - Design and Access · 20 May 2026 View ↗ PDF ECOLOGY TRIGGER LIST Ecology Report Trigger Table · 20 May 2026 View ↗ PDF ASSESSMENT FOUL DRAINAGE Assessment - Foul Drainage · 20 May 2026 View ↗ PDF BAT, BARN OWL AND NESTING BIRD SURVEY Assessment - Ecological · 20 May 2026 View ↗

Application forms 1

PDF APPLICATION FORM Application Form · 20 May 2026 View ↗

All documents on the council site ↗

Site constraints 4

1 listed building within 150 m of the postcode pin
Nearest: Treviades Barton Including Garden Area Walls Adjoining South, Grade II*, about 2 m from the postcode pin
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Historic England ↗
Cornwall National Landscape
Great weight to conserving the landscape; major development restricted.
Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.
Agricultural land, grade 2
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), which most planning maps still show, had this area as grade 3. The predicted grade is Defra's current estimate; only a site survey settles it.
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 scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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 2

Last sold for £1,200,000 in November 2025. Detached house, freehold.

5 November 2025£1,200,000
11 April 2007£795,000

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

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Other new applications on this street

18 Sept 2026Pending

Lower Treviades Farm Treviades Constantine Falmouth Cornwall TR11 5RG

Demolition of the existing single-storey bungalow and erection of a replacement ...

PA26/06129
14 Sept 2026Pending

Treviades Garth Treviades Constantine Falmouth Cornwall TR11 5RG

Proposed first floor extension including dormer windows and balconies, replaceme...

PA26/05515
2 Jun 2026Refused

Land Adjacent To Treviades Garth Treviades Constantine TR11 5RG

Application for Permission in Principle for the construction of up to 1 dwelling...

PA26/03724

Nearby new applications

18 Sept 2026Pending

Lower Treviades Farm Treviades Constantine Falmouth Cornwall TR11 5RG

Demolition of the existing single-storey bungalow and erection of a replacement ...

PA26/06129
14 Sept 2026Pending

Treviades Garth Treviades Constantine Falmouth Cornwall TR11 5RG

Proposed first floor extension including dormer windows and balconies, replaceme...

PA26/05515

Important details

Council
Cornwall
Application type
Full application
Postcode
TR11 5RG
Received
28 May 2026
Validated
28 May 2026
Ward
Constantine, Mabe And Mawnan
Parish
Constantine
Case officer
Show
Target decision
23 Jul 2026
Decision
Approved with conditions
Decision date
13 Jul 2026
Decision level
Self Sign Off (Area Team)
Applicant
Show
Agent
3HW Architecture & Design Ltd

How this decision compares

Decided in 46 days from validation, 8 days faster than Cornwall's median of 54 for extensions. Approved, as 95% of extensions here are.

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 →

Consultation & key dates

Alt. reference
PP-14874037
Planning Portal ref
PP-14874037
Neighbours
28 May 2026
Consultation
28 May 2026
Comments by
22 Jun 2026
Site or press notice
1 Jun 2026
Statutory expiry
23 Jul 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2024 Approved
Application for a Lawful Development Certificate for proposed commencement of works, unde…
PA24/08120
2021 Approved
To provide ancillary accommodation to Treviades Wollas by the conversion of a studio and…
PA21/07969
Within ~100m

Nearby activity

2025 Refused
Treviades Barton Treviades Constantine Falmouth Cornwall TR11 5RG
Submission of details to discharge the deemed biodiversity gain condition in relation to…
PA25/07348
2025 Approved
Treviades Melyn Treviades Constantine Falmouth Cornwall TR11 5RG
Proposed single-storey sunroom extension to the rear of the existing garage, for incident…
PA25/06831
2025 Withdrawn
Lower Treviades Farm Treviades Constantine Falmouth Cornwall TR11 5RG
Pre-application advice for replacement dwelling designed as a sustainable family home, wi…
PA25/00877/PREAPP
2025 Approved
Land North Of Treviades Barton Treviades Constantine Falmouth Cornwall TR11 5RG
Listed Building Consent for proposed stable building (PA25/01552)
PA25/04735
2025 Approved
Treviades Barton Treviades Constantine Falmouth Cornwall TR11 5RG
Proposed stable building
PA25/01552
2023 Approved
The Grange Treviades Constantine Falmouth Cornwall TR11 5RG
Replace the existing conservatory with a new single storey glazed extension and a first f…
PA23/04337
2022 Withdrawn
The Old Manor House Treviades Constantine Cornwall TR11 5RG
Listed Building Consent to enlarge the patio outside property's back door, move a 1.5M hi…
PA22/07962
2022 Approved
Treviades Wollas Treviades Constantine Cornwall TR11 5RG
To provide ancillary accommodation to Treviades Wollas by the conversion of a studio and…
PA22/05470
2021 Withdrawn
Treviades Barton Treviades Constantine TR11 5RG
Listed building consent for repairs to roof rafters and one A frame and replacement roof…
PA21/00668
2019 Approved
Treviades Garth Treviades Constantine TR11 5RG
Certificate of lawfulness for proposed first floor extension including dormer windows and…
PA19/09902
2016 Approved
Treviades Garth Treviades Constantine TR11 5RG
Proposed first floor extension including dormer windows and balconies, replacement rear e…
PA16/10203
2016 Approved
Treviades Barton Treviades Constantine Cornwall TR11 5RG
Listed Building Consent for the demolition of existing Porch within Courtyard & Construct…
PA16/01383
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.