New County Hall Treyew Road Truro Cornwall TR1 3AY Data via plota.co.uk

PA26/03824 - Listed Building Consent Approved

Proposal

Listed building consent for the relocation of Transformer to New County Hall from basement of existing building to new standalone unit within curtilage of NCH. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
29 Jun 2026
✓
Consultation
3 Jul 2026
✓
Approved
10 Aug 2026

Approved on 10 Aug 2026 · Peer Sign Off · Last checked 10 Aug 2026

Site constraints 5

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 ↗
1 listed building within 150 m
Nearest: New County Hall Including Terrace Pool Surrounds and Bridge to Courtyard, Grade II, 50 m away
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 ↗
Also on the record
Inside the Truro 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 scheduled monument 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 area2,808 m² (30,225 sq ft)
Energy ratingC (asset rating 71)
UseB1 Offices and Workshop businesses
HeatingHeating and Mechanical Ventilation

From the energy performance certificate lodged in May 2014, 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
Listed Building Consent
Postcode
TR1 3AY
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
10 Aug 2026
Decision level
Peer Sign Off
Applicant
Show
Agent
KTA Architects Ltd
Freehold owner
Show

How this decision compares

Decided in 42 days from validation, 13 days faster than Cornwall's median of 55 for listed building works. Approved, as 99% of listed building works here are.

75%decided within 8 weeks
99%approved
353decided in the last year

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

Public comments

1comment received
1 supporting

Last counted 10 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14983481
Planning Portal ref
PP-14983481
Comments by
24 Jul 2026
Site or press notice
3 Jul 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:
Other 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.

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.