Basement planning approval rate in Plymouth
91% of 34 decided basement applications in Plymouth 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.
91%
Approval rate, all years, from 34 decided
34
decided basement applications in Plymouth: 31 approved, 3 refused
100%
Recent rate, decided since 2022, from 13 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 Withdrawn applications are excluded. The eight-record threshold is a display rule, not a guarantee that a sample is statistically reliable.
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.
Coverage for this project type
Dated records in this archive span 2016 to 2026. 0 of 34 decided records have no year recorded. Coverage may have gaps within the date range.
13 decided records are dated 2022 or later. This is an archive count, not a measure of all current council activity.
These project categories can include different application routes and proposals combining several kinds of work. Read the proposal and decision type before comparing it with your project.
Check planning requirements in Plymouth, or read about permitted development in Plymouth. An approval rate does not decide which route your property qualifies for.
Example basement decisions in Plymouth
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.
Visit Plymouth's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 25/01089/LBC | 2026 | Approved | Various internal alterations to facilitate use of the basement and 2no. condensers. HMS Drake, Saltash Road Keyham Plymouth PL2 2DQ |
| 25/01478/FUL | 2026 | Approved | Conversion of basement to 1no. flat (Class C3) (retrospective) 61 Hyde Park Road Plymouth PL3 4JN |
| 25/01588/FUL | 2026 | Approved | Separation of basement from the main dwelling to form self- contained basement flat 6 Sussex Place Plymouth PL1 2HT |
| 18/00853/FUL | 2018 | Refused | Demolition of conservatory and construction of new conservatory with room-in-roof and basement 3 Venn Way Plymouth PL3 5PN |
| 17/00286/FUL | 2017 | Refused | Conversion of basement into 2 self-contained flats (Class C3) 6 Connaught Avenue Plymouth PL4 7BX |
| 16/00084/LBC | 2016 | Refused | Installation and replacement of basement steps 1 & 4 The Terrace, Morice Yard, HMR Naval Base Keyham Plymouth PL1 4SB |
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 Plymouth
- Single-storey rear extension 98%, 850 decided
- Two-storey rear extension 95%, 406 decided
- Wraparound extension 99%, 155 decided
- Side extension 96%, 534 decided
- Loft conversion and dormer 92%, 241 decided
- Rooflight 94%, 70 decided
- Outbuilding and garden room 87%, 129 decided
- Porch 97%, 180 decided
- Garage conversion 90%, 51 decided
- Window and door 93%, 392 decided