Loft conversion and dormer planning approval rate in Cornwall
97% of 97 decided loft conversion and dormer applications in Cornwall were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
97%
Approval rate, all years, from 97 decided
97
decided loft conversion and dormer applications in Cornwall: 94 approved, 3 refused
97%
Recent rate, decided since 2022, from 39 decided
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Example loft conversion and dormer decisions in Cornwall
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| PA24/08829 | 2025 | Approved | Application for a Certificate of Lawfulness for an Existing use for a rear flat roofed dormer and conversion of loft space to a bedroom and storage area. 23 Longmeadow Road Saltash Cornwall PL12 6DW |
| PA24/08847 | 2025 | Approved | Conversion of garage / hobbies room to Artist Studio / Home Office including formation of front dormer window and general alterations 2 Pencoose Barns St Erme Truro Cornwall TR4 9BL |
| PA24/09619 | 2025 | Approved | Replacement conservatory and dormer to first floor. 11 Manewas Way Newquay Cornwall TR7 3AJ |
| PA23/07799 | 2024 | Refused | Proposed Construction of 5 Dormer Bungalows and Associated Works Following Previously Approved (PA21/10088) Land Adj To Rosemerryn St Ruan Ruan Minor Cornwall TR12 7JS |
| PA17/09351 | 2018 | Refused | Proposed demolition of part of existing single storey extension and construction of new single storey extension and revised dormer loft extension to dwelling... 5 Cliff Park Terrace Guineaport Road Wadebridge PL27 7BL |
| PA15/11271 | 2016 | Refused | Division of one large apartment to form three units with new dormer windows. Post Office 1 Fore Street Millbrook Torpoint Cornwall PL10 1BA |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in Cornwall
- Single-storey rear extension 97%, 146 decided
- Two-storey rear extension 98%, 45 decided
- Wraparound extension 100%, 9 decided
- Side extension 98%, 57 decided
- Rooflight 98%, 52 decided
- Outbuilding and garden room 95%, 125 decided
- Porch 100%, 63 decided
- Garage conversion 94%, 47 decided
- Basement 100%, 11 decided
- Window and door 96%, 187 decided