Two-storey rear extension planning approval rate in Croydon
75% of 2,565 decided two-storey rear extension applications in Croydon 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.
75%
Approval rate, all years, from 2,565 decided
2,565
decided two-storey rear extension applications in Croydon: 1,924 approved, 641 refused
69%
Recent rate, decided since 2022, from 1,087 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 Withdrawn applications are excluded.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 two-storey rear extension decisions in Croydon
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 |
|---|---|---|---|
| 25/02692/HSE | 2026 | Approved | Erection of single storey rear extension and two storey side extension. Erection of a dormer extension to rear roof slope in connection with conversion of r... |
| 25/02711/FUL | 2026 | Approved | Erection of single storey side/rear extension and first floor rear extension to provide balcony, external alterations and conversion to two dwellings. |
| 25/03007/HSE | 2026 | Approved | Erection of a two storey side extension and dormer extension to rear roof slope in connection with conversion of resultant roof space to habitable accommodat... |
| 25/03152/HSE | 2026 | Refused | Demolition of existing garage and conservatory, alterations, erection of a part single/part two storey front/side extension to include front porch and roof c... |
| 25/03304/DISC | 2026 | Refused | Discharge of condition 3 (Landscaping), 4 (Construction Logistics Plan), 5 (Refuse and cycle storage), 6 (Material) and 7 (surface water drainage) attached t... |
| 25/03431/HSE | 2026 | Refused | Erection of two storey side/rear extensions, front porch extension, extension to existing roof including rooflights and dormer to rear elevation in connectio... |
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 Croydon
- Single-storey rear extension 84%, 6,179 decided
- Wraparound extension 80%, 866 decided
- Side extension 80%, 1,975 decided
- Loft conversion and dormer 75%, 1,313 decided
- Rooflight 87%, 2,238 decided
- Outbuilding and garden room 75%, 719 decided
- Porch 83%, 233 decided
- Garage conversion 93%, 335 decided
- Basement 81%, 1,059 decided
- Window and door 84%, 740 decided