Outbuilding and garden room planning approval rate in Lambeth
77% of 190 decided outbuilding and garden room applications in Lambeth 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.
77%
Approval rate, all years, from 190 decided
190
decided outbuilding and garden room applications in Lambeth: 147 approved, 43 refused
74%
Recent rate, decided since 2022, from 78 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 Withdrawn applications are excluded.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 2001 to 2025. 0 of 190 decided records have no year recorded. Coverage may have gaps within the date range.
78 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 Lambeth, or read about permitted development in Lambeth. An approval rate does not decide which route your property qualifies for.
Example outbuilding and garden room decisions in Lambeth
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.
Search Lambeth's planning register using the references below. Descriptions may be shortened; read the complete proposal and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 23/02279/FUL | 2025 | Refused | Erection of outbuilding in rear garden utility/study room. Replacement of existing raised terrace, with a new timber balustrade and stairs. |
| 24/02966/FUL | 2025 | Approved | Erection of a garden studio outbuilding to the rear of the garden with photovolaic panels to the roof (part retrospective). |
| 23/02779/FUL | 2024 | Refused | Remove existing steel-framed canopy and temporary outbuildings to the side and installation of 1x awning to rear, 1x awning and 4x parasols to front and inst... 10 Rookery Road London Lambeth SW4 9DD |
| 23/04019/FUL | 2024 | Approved | Demolition of the detached garage and erection of an ancillary outbuilding. 237 Leigham Court Road London Lambeth SW16 2SB |
| 23/04158/LDCP | 2024 | Approved | Application for a Certificate of Lawful Development (Proposed) with respect to the erection of an outbuilding in the rear of the garden to provide a pool hou... 180 Denmark Hill London Lambeth SE5 8EE |
| 24/00163/FUL | 2024 | Refused | Erection of a single storey detached outbuilding at Flat C |
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 Lambeth
- Single-storey rear extension 82%, 3,310 decided
- Two-storey rear extension 77%, 359 decided
- Wraparound extension 84%, 695 decided
- Side extension 85%, 677 decided
- Loft conversion and dormer 76%, 1,116 decided
- Rooflight 84%, 2,205 decided
- Porch 90%, 77 decided
- Garage conversion 87%, 63 decided
- Basement 86%, 2,031 decided
- Window and door 83%, 2,107 decided