Single-storey rear extension planning approval rate in Greater Cambridge
94% of 155 decided single-storey rear extension applications in Greater Cambridge 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.
94%
Approval rate, all years, from 155 decided
155
decided single-storey rear extension applications in Greater Cambridge: 145 approved, 10 refused
91%
Recent rate, decided since 2022, from 53 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 Withdrawn applications are excluded.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 single-storey rear extension decisions in Greater Cambridge
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 |
|---|---|---|---|
| 25/04498/HFUL | 2026 | Approved | Demolition of existing conservatory, erection of single storey side/rear extension and replacement of existing patio doors with window. 10 Panton Street Cambridge Cambridgeshire CB2 1HP |
| 26/00115/HFUL | 2026 | Approved | Single storey side/rear extension following demolition of existing garage/store and conservatory. Relocation of front entrance and erection of porch canopy.... 5 Foremans Road Thriplow Cambridgeshire SG8 7RA |
| 26/00119/HFUL | 2026 | Approved | Single storey rear extension. 25 High Street Oakington And Westwick Cambridgeshire CB24 3AG |
| 23/03663/HFUL | 2023 | Refused | Single storey front and rear extensions. 66 Teversham Drift Cherry Hinton Cambridge Cambridgeshire CB1 3JZ |
| 21/03963/HFUL | 2022 | Refused | SINGLE STOREY EXTENSIONS TO THE FRONT, SIDE AND REAR. SINGLE STOREY EXTENSION TO THE GARAGE AND TO CHANGE THE GARAGE FLAT ROOF TO A PITCHED ROOF INCLUDING TH... 33 Willow Crescent Milton CB24 6BY |
| 22/00207/HFUL | 2022 | Refused | Demolition of existing Greenhouse and construction of new single storey rear Reception Room extension. 27 Parkside Cambridge CB1 1JE |
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 Greater Cambridge
- Two-storey rear extension 86%, 81 decided
- Wraparound extension 100%, 28 decided
- Side extension 96%, 72 decided
- Loft conversion and dormer 87%, 23 decided
- Rooflight 94%, 33 decided
- Outbuilding and garden room 92%, 37 decided
- Porch 100%, 11 decided
- Garage conversion 94%, 17 decided
- Basement 100%, 10 decided
- Window and door 91%, 57 decided