Basement planning approval rate in Merton
90% of 472 decided basement applications in Merton 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.
90%
Approval rate, all years, from 472 decided
472
decided basement applications in Merton: 426 approved, 46 refused
82%
Recent rate, decided since 2022, from 129 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 Withdrawn applications are excluded.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 basement decisions in Merton
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 |
|---|---|---|---|
| 23/P3255 | 2026 | Approved | ERECTION OF A REAR EXTENSION. DEMOLITION OF EXISTING PART SINGLE PART TWO STOREY SIDE WING TO BE REPLACED WITH A THREE STOREY SIDE EXTENSION. VARIOUS ELEVATI... |
| 23/P3239 | 2025 | Approved | PART 1, PART 2 SIDE AND REAR EXTENSIONS TO EXISTING BUILDING AND ENLARGED BASEMENT FOLLOWING DEMOLITION WHICH RETAINS THE EXISTING FRONT AND SIDE FACADES ONL... |
| 24/P1338 | 2025 | Refused | DEMOLITION OF THE EXISTING BUILDING AND ERECTION OF A NEW 4 STOREY BUILDING PLUS BASEMENT AND MEZZANINE FLOOR TO RE-PROVIDE A PUBLIC HOUSE (SUI GENERIS) AT G... The Trafalgar |
| 24/P2292 | 2025 | Approved | DEMOLITION OF THE EXISTING DEVELOPMENT CONSISTING OF 3 BLOCKS OF FLATS AND ANCILLARY GARAGES. CONSTRUCTION OF 4 STOREY PLUS BASEMENT APARTMENT BLOCK CONSISTI... Wood Lodge |
| 25/P0399 | 2025 | Refused | APPLICATION FOR THE PROPOSED DEMOLITION OF THE EXISTING PROPERTY, WITH RETENTION OF THE FACADE, AND CONSTRUCTION OF A NEW BUILD FAMILY DWELLING HOUSE WITH BA... |
| 25/P1986 | 2025 | Refused | DEMOLITION OF EXISTING DWELLING WITH FRONT FACADE RETENTION. NEW BUILD REPLACEMENT DWELLING WITH ADDITIONAL ENLARGEMENT OF BASEMENT, GROUND FLOOR EXTENSION A... |
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 Merton
- Single-storey rear extension 81%, 4,141 decided
- Two-storey rear extension 77%, 872 decided
- Wraparound extension 91%, 758 decided
- Side extension 83%, 861 decided
- Loft conversion and dormer 87%, 1,418 decided
- Rooflight 93%, 1,814 decided
- Outbuilding and garden room 82%, 413 decided
- Porch 89%, 128 decided
- Garage conversion 96%, 157 decided
- Window and door 94%, 456 decided