Outbuilding and garden room planning approval rate in Oldham
86% of 124 decided outbuilding and garden room applications in Oldham 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.
86%
Approval rate, all years, from 124 decided
124
decided outbuilding and garden room applications in Oldham: 107 approved, 17 refused
88%
Recent rate, decided since 2022, from 58 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 Withdrawn applications are excluded.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 outbuilding and garden room decisions in Oldham
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 |
|---|---|---|---|
| CEA/355351/25 | 2026 | Approved | Erection of a detached outbuilding within the residential curtilage. Bowgreave Ballgrove Grove Road Uppermill Oldham OL3 6JG |
| HOU/355288/25 | 2026 | Approved | 1) Demolition of three existing single storey domestic outbuildings, a polytunnel and a greenhouse 2) Detached outbuilding Kiln Butts Harrop Green Lane Diggle Oldham OL3 5LW |
| CEA/354556/25 | 2025 | Approved | Proposed erection of a replacement detached outbuilding within the residential curtilage to be used for a purpose that is incidental to the enjoyment of the... 36 Healds Green Chadderton Oldham OL1 2SP |
| FUL/346128/21 | 2025 | Refused | Single storey outbuilding to provide ancillary residential accommodation The Wynyates Standedge Road Diggle Oldham OL3 5NR |
| HOU/354823/25 | 2025 | Refused | Retention of an outbuilding 13 Jowett Street Oldham OL1 4JQ |
| CEA/350860/23 | 2023 | Refused | Erection of an outbuilding to the rear of the property. 16 Propps Hall Drive Failsworth Oldham M35 0LN |
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 Oldham
- Single-storey rear extension 88%, 1,643 decided
- Two-storey rear extension 85%, 1,242 decided
- Wraparound extension 90%, 346 decided
- Side extension 89%, 1,062 decided
- Loft conversion and dormer 83%, 449 decided
- Rooflight 96%, 67 decided
- Porch 84%, 180 decided
- Garage conversion 95%, 88 decided
- Basement 86%, 43 decided
- Window and door 93%, 328 decided