Outbuilding and garden room planning approval rate in Manchester
78% of 121 decided outbuilding and garden room applications in Manchester 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.
78%
Approval rate, all years, from 121 decided
121
decided outbuilding and garden room applications in Manchester: 94 approved, 27 refused
67%
Recent rate, decided since 2022, from 61 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 Withdrawn applications are excluded.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 2015 to 2026. 0 of 121 decided records have no year recorded. Coverage may have gaps within the date range.
61 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 Manchester, or read about permitted development in Manchester. An approval rate does not decide which route your property qualifies for.
Example outbuilding and garden room decisions in Manchester
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 Manchester's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 143332/FH/2025 | 2026 | Approved | Retention of detached outbuilding in rear garden 39 Old Hall Lane Manchester M13 0TH |
| 144310/FO/2025 | 2026 | Refused | Partial Retrospective for outbuilding and raised decked area used for business purposes (Class Sui Generis), together with domestic shed for storage and alte... 18 Broughville Drive Manchester M20 5WH |
| 144388/FH/2025 | 2026 | Approved | Retrospective application for the erection of outbuilding to provide granny flat. 46 Garth Road Manchester M22 9TN |
| 144449/FH/2025 | 2026 | Approved | Erection of single storey outbuilding for ancillary use 40 Daventry Road Manchester M21 0ZP |
| 137561/LE/2023 | 2025 | Refused | Use of outbuilding as domestic garage. 23 Ashdown Avenue Manchester M9 6PR |
| 141424/LP/2024 | 2025 | Refused | Use of a detached rear outbuilding as a granny annex 9 Howard Road Manchester M22 4EG |
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 Manchester
- Single-storey rear extension 92%, 1,670 decided
- Two-storey rear extension 87%, 1,345 decided
- Wraparound extension 96%, 599 decided
- Side extension 90%, 909 decided
- Loft conversion and dormer 84%, 346 decided
- Rooflight 92%, 150 decided
- Porch 86%, 251 decided
- Garage conversion 86%, 59 decided
- Basement 88%, 408 decided
- Window and door 92%, 815 decided