Side extension planning approval rate in Lewes
92% of 614 decided side extension applications in Lewes 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.
92%
Approval rate, all years, from 614 decided
614
decided side extension applications in Lewes: 567 approved, 47 refused
92%
Recent rate, decided since 2022, from 224 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 Withdrawn applications are excluded.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 2015 to 2026. 0 of 614 decided records have no year recorded. Coverage may have gaps within the date range.
224 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 Lewes, or read about permitted development in Lewes. An approval rate does not decide which route your property qualifies for.
Example side extension decisions in Lewes
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.
Visit Lewes's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| LW/25/0607 | 2026 | Approved | Erection of single-storey rear extension to the main building, single-storey side extension to existing garage, removal of side porch, increase in ridge roof... 98 Bevendean Avenue Saltdean East Sussex BN2 8PE |
| LW/25/0704 | 2026 | Approved | Demolition of existing rear conservatory and replacement with single storey rear extension, demolition of existing side extension and replacement with single... 77 Central Avenue Telscombe Cliffs East Sussex BN10 7NB |
| LW/26/0001 | 2026 | Approved | Single storey side extension and single storey rear/side extension to convert garage to living space, and addition of 2no. roof lights 20 Bretts Field Peacehaven East Sussex BN10 7UJ |
| LW/26/0014 | 2026 | Refused | Demolition of side extension and erection of replacement side extension and roof extension 45 Southview Road Peacehaven East Sussex BN10 8EA |
| LW/24/0684 | 2025 | Refused | Single storey side extension and expansion of rear dormers to form one rear dormer with balcony and glass balustrade 1 Church Hill Ringmer East Sussex BN8 5JX |
| LW/24/0697 | 2025 | Refused | Single storey side extension 1 Vicarage Close Seaford East Sussex BN25 1SQ |
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 Lewes
- Single-storey rear extension 95%, 1,190 decided
- Two-storey rear extension 89%, 257 decided
- Wraparound extension 95%, 148 decided
- Loft conversion and dormer 94%, 414 decided
- Rooflight 95%, 237 decided
- Outbuilding and garden room 86%, 237 decided
- Porch 95%, 160 decided
- Garage conversion 91%, 161 decided
- Basement 87%, 39 decided
- Window and door 93%, 324 decided