Side extensions in Cheltenham

All of Cheltenham

2,328 applications since 2016. 2,144 approved and 68 refused. Refused: about 1 in 33 here, about 1 in 7 across the councils we cover.

Last updated 8 November 2026.

Without planning permission

  • Single storey, no higher than 4 m
  • No wider than half the width of the original house
  • Not facing a road

England, houses only. Flats, listed buildings, conservation areas and Article 4 directions change this. The full rules.

Year by year

YearApplicationsApprovedRefused
2026102852
20251861742
20241531415
202319117310
202222920110
20213052896
20202212044
20192462365
20182131967
20172342158
20162482309

Architects and agents, last 5 years

FirmApprovedDecided
VJM Design House Ltd4747
Aj Architects Ltd3131
H A Planning2020
Homeplan Drafting Services1820
Clint Jones Building Design Services1717
Steve Mitchell Building Design1516
Aston Architectural Design Ltd.1212
Cotswold Architectural1212
A. Clarke Design Ltd1112
Hoch Bau Architecture1111

Neighbouring councils

CouncilApprovedRefusedHow often
Cotswold 2,205 89 about 1 in 26

Other projects in Cheltenham