Single-storey rear extension planning approval rate in Lambeth
82% of 3,310 decided single-storey rear extension 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.
82%
Approval rate, all years, from 3,310 decided
3,310
decided single-storey rear extension applications in Lambeth: 2,720 approved, 590 refused
79%
Recent rate, decided since 2022, from 1,346 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 Withdrawn applications are excluded.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 2000 to 2025. 0 of 3,310 decided records have no year recorded. Coverage may have gaps within the date range.
1,346 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 single-storey rear extension 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 |
|---|---|---|---|
| 23/01235/FUL | 2025 | Approved | Conversion of existing property into 3 self-contained flats involving the erection of a single storey ground floor rear and side infill extension (with court... |
| 24/01849/FUL | 2025 | Approved | Erection of a single storey ground floor rear extension. |
| 24/02198/FUL | 2025 | Approved | Conversion of an existing dwelling into 3 self-contained residential units involving the erection of a single storey ground floor rear/side infill extension.... |
| 21/03425/FUL | 2024 | Refused | Conversion of existing residential unit into 3 self contained units on lower ground and ground floor level, involving the erection of a part 1 part 2 storey... |
| 23/03389/DET | 2024 | Refused | Approval of details pursuant to Condition 7 (Brick Sample) of planning permission 22/03778/FUL (Erection of a single storey ground floor rear extension. Erec... 18 Cotherstone Road London Lambeth SW2 3NF |
| 23/03394/DET | 2024 | Refused | Approval of details pursuant to conditions 8 (Construction methodology), 12 (Cycle storage) and 13 (details of ventilation/provision of floor drains to the r... 48 Kennington Road London Lambeth SE1 7BL |
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
- 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
- Outbuilding and garden room 77%, 190 decided
- Porch 90%, 77 decided
- Garage conversion 87%, 63 decided
- Basement 86%, 2,031 decided
- Window and door 83%, 2,107 decided