Planning application
7 Trenoweth Crescent Penzance Cornwall TR18 4RY
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Application for a Lawful Development Certificate for a Proposed Erection of rear-facing dormer roof extension and insertion of roof windows to front roof slope
As published by the council, reference PA26/04426
Application record
- Reference
- PA26/04426
- Type
- Cert Lawfulness - proposed dev/use
- Status
- Decided
- Decision
- Granted As published: Granted (CAADs, PIPs and LUs only)
- Received
- 25 Jun 2026
- Validated
- 25 Jun 2026
- Decided
- 25 Aug 2026
- Ward
- Penzance Promenade
- Parish
- Penzance
- Decision by
- Peer Sign Off
- Postcode
- TR18 4RY
Timeline
Dates from the published record
-
25 Jun 2026
Received by Cornwall
-
21 Jul 2026
Added to PlanIndex
-
25 Aug 2026
Decision issued: Granted (CAADs, PIPs and LUs only)
Who's behind it
Company information only, from the register and Companies House
Mason Architectural Design Agent, an architecture practice
6 applications on PlanIndex · across 3 councils
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Plans, drawings, consultee responses and the officer's report
12 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Cornwall granted permission on 25 August 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
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6 Trenoweth Crescent Penzance Cornwall TR18 4RY
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3 Trenoweth Crescent Penzance TR18 4RY
Certificate of lawfulness for proposed use: Conversion of existing loft to form habitable accommodation, construction of dormer roof extension to rear, insertion of rooflights to front roof slope, additional first floor window to front elevation
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18 Trenoweth Crescent Penzance Cornwall TR18 4RY
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PA26/06880 Awaiting decision
Higher Polladras Breage TR13 9NS
Proposed Certificate of Lawfulness for continuation and completion of the dwelling and domestic garage authorised by outline planning permission W/KR/73/43123 dated 16.08.73 and reserved matters approval W/KR/74/43123/S.A dated 15.02.74 The development would be completed in accordance with the siting, footprint, dimensions, design and external appearance shown on the historically approved drawings and the plans submitted with this application. The application is made on the basis that the permission was lawfully commenced within the prescribed period through the excavation of foundation trenches for the approved dwelling.
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PA26/06785 Awaiting decision
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Certificate of Lawfulness for proposed use or development namely the installation of nine roof-mounted photovoltaic solar panels to the south-west facing roof slope of the dwellinghouse.
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PA26/03536 Granted
An Godror Godolphin Cross Helston Cornwall TR13 9RD
Application for a Lawful Development Certificate for an Existing use Use of shed as a single self contained dwellinghouse
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PA26/06521 Awaiting decision
New Lydcott Farm Widegates Looe Cornwall PL13 1QJ
Application for a Lawful Development Certificate for a Proposed construction of two single storey side extensions and garage refurbishment
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PA26/06803 Awaiting decision
The Stables Little Trethew Farm Horningtops Liskeard Cornwall PL14 3PZ
Certificate of Lawfulness (Existing) for confirmation the outbuilding within the residential curtilage is a residential/domestic outbuilding with unrestricted use to the dwelling known as "The Stables"