Two-storey rear extension planning approval rate in South Downs National Park
90% of 89 decided two-storey rear extension applications in South Downs National Park 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 89 decided
89
decided two-storey rear extension applications in South Downs National Park: 80 approved, 9 refused
95%
Recent rate, decided since 2022, from 21 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 Withdrawn applications are excluded.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 South Downs National Park
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 |
|---|---|---|---|
| SDNP/25/04241/HOUS | 2026 | Approved | Two storey side and rear extension 61 Moggs Mead Petersfield Hampshire GU31 4PY |
| SDNP/24/04715/HOUS | 2025 | Approved | Two storey front extension, rear ground floor roof extension to create veranda with fenestration alterations 26 South Way Lewes East Sussex BN7 1LY |
| SDNP/24/04868/HOUS | 2025 | Approved | Erection of ground floor and first floor rear extension 31 Mountfield Road Lewes East Sussex BN7 2UR |
| SDNP/22/01837/HOUS | 2022 | Refused | Erection of two storey side and rear extension 58 South Way Lewes BN7 1LY |
| SDNP/19/05070/HOUS | 2020 | Refused | SINGLE AND TWO STOREY REAR EXTENSION 2 Hockley Cottages Petersfield Road Cheriton SO24 0NU |
| SDNP/18/01601/HOUS | 2018 | Refused | Erection of glazed first floor rear extension, front porch, external staircase, insertion of Juliet balcony to front elevation and windows to side elevation,... 16A St John Street Lewes BN7 2QE |
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 South Downs National Park
- Single-storey rear extension 93%, 248 decided
- Wraparound extension 90%, 20 decided
- Side extension 91%, 139 decided
- Loft conversion and dormer 90%, 81 decided
- Rooflight 93%, 85 decided
- Outbuilding and garden room 89%, 166 decided
- Porch 96%, 57 decided
- Garage conversion 95%, 40 decided
- Basement 95%, 19 decided
- Window and door 94%, 257 decided