Loft conversion and dormer planning approval rate in Sutton
82% of 297 decided loft conversion and dormer applications in Sutton 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.
82%
Approval rate, all years, from 297 decided
297
decided loft conversion and dormer applications in Sutton: 245 approved, 52 refused
73%
Recent rate, decided since 2022, from 128 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 Withdrawn applications are excluded.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 2000 to 2026. 0 of 297 decided records have no year recorded. Coverage may have gaps within the date range.
128 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 Sutton, or read about permitted development in Sutton. An approval rate does not decide which route your property qualifies for.
Example loft conversion and dormer decisions in Sutton
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.
Search Sutton's planning register using the references below. Descriptions may be shortened; read the complete proposal and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| DM2025/01314 | 2026 | Approved | Demolition of existing garage and erection of an attached two storey dwelling, together with the erection of a front entrance porch and conversion of loft sp... |
| DM2025/01409 | 2026 | Approved | Enlargement of existing rear dormer extension. |
| DM2025/01551 | 2026 | Approved | Conversion of loft space involving a dormer extension at rear. Stamford |
| DM2025/00017 | 2025 | Refused | Conversion of loft space involving alterations to existing roofline, increase to ridge height and a dormer extension to side. Lime Cottage |
| DM2025/00201 | 2025 | Refused | Demolition of garage and erection of an attached two storey dwelling with refuse storage and parking to the front, formation of a new vehicle crossover and a... |
| DM2025/00377 | 2025 | Refused | Erection of a dormer extension at rear. |
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 Sutton
- Single-storey rear extension 77%, 3,670 decided
- Two-storey rear extension 73%, 1,436 decided
- Wraparound extension 82%, 615 decided
- Side extension 78%, 1,284 decided
- Rooflight 90%, 1,697 decided
- Outbuilding and garden room 83%, 321 decided
- Porch 88%, 216 decided
- Garage conversion 90%, 284 decided
- Basement 86%, 165 decided
- Window and door 92%, 325 decided