Outbuilding and garden room planning approval rate in Mid Sussex
4% of 26 decided outbuilding and garden room applications in Mid Sussex 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.
4%
Approval rate, all years, from 26 decided
26
decided outbuilding and garden room applications in Mid Sussex: 1 approved, 25 refused
0%
Recent rate, decided since 2022, from 15 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 Withdrawn applications are excluded.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 outbuilding and garden room decisions in Mid Sussex
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 |
|---|---|---|---|
| DM/25/1114 | 2026 | Refused | Part retrospective application for the proposed installation of play equipment and boundary fence as well as a retrospective timber framed summer house Hambrook School Marle Place 171 Leylands Road Burgess Hill West Sussex RH15 8HY |
| DM/24/2248 | 2025 | Refused | Construction of four bedroom detached dwelling following demolition of outbuildings. The Bulrushes Coombe Hill Road East Grinstead West Sussex RH19 4LZ |
| DM/25/2889 | 2025 | Refused | Existing Certificate of Lawfulness application for the use of part of an outbuilding as an existing dwelling. Floran Farm Hophurst Hill Crawley Down Crawley West Sussex RH10 4LP |
| DM/19/2042 | 2019 | Approved | Demolition of annexe Martlet House Annexe Hurstpierpoint College College Lane Hurstpierpoint Hassocks West Sussex BN6 9JS |
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 Mid Sussex
- Single-storey rear extension 25%, 59 decided
- Two-storey rear extension 0%, 25 decided
- Wraparound extension 0%, 9 decided
- Side extension 0%, 27 decided
- Loft conversion and dormer 3%, 29 decided
- Rooflight 0%, 20 decided
- Porch 0%, 12 decided
- Garage conversion 0%, 14 decided
- Basement unknown, 4 decided
- Window and door 3%, 39 decided