1 St Marys Close Penzance Cornwall TR18 4EG Data via plota.co.uk

PA26/05722 - Full application Awaiting decision

Proposal

Proposed alterations to boundary wall and fence. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
around 17 Aug 2026
✓
Consultation
3 Sept 2026
Decision
Expected by 12 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 10 Oct 2026, from Cornwall's recent extensions.

The consultation period closed on 1 Oct 2026.

Site constraints 5

Penzance conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Registered park or garden 33 m away: Morrab Gardens
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
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 ↗
56 listed buildings within 150 m
Nearest: 8, Parade Street, Grade II, 34 m away · 1 Grade I, 3 Grade II*, 52 Grade II
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.
Show all 56 with distances
Historic England ↗
Also on the record
Inside the Penzance built-up area.
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.

Sales history 2

Last sold for £500,000 in September 2023. Terraced house, freehold.

19 September 2023£500,000
31 January 2019£300,000

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

Building

Floor area107 m² (1,152 sq ft)
Energy ratingC (72 out of 100), could reach B
PropertyEnd-terrace house, 5 habitable rooms
Built1991 to 1995
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in May 2018, 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
TR18 4EG
Received
around 17 Aug 2026
Validated
17 Aug 2026
Ward
Penzance Promenade
Parish
Penzance
Case officer
Show
Target decision
12 Oct 2026
Applicant
Show
Agent
Collaborative Planning

Decision outlook

Day 53 of the 56-day target. Cornwall usually decides extensions by day 54.

Day 533 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.

1 neighbour consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15157153
Planning Portal ref
PP-15157153
Neighbours
3 Sept 2026
Consultation
3 Sept 2026
Comments by
1 Oct 2026
Site or press notice
10 Sept 2026
Statutory expiry
12 Oct 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

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

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.