Side extensions in North Somerset

All of North Somerset

2,273 applications since 2020. 1,993 approved and 156 refused. Refused: about 1 in 14 here, about 1 in 7 across the councils we cover.

Last updated 9 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
20262021578
202530125939
202427023125
202326622621
202232930417
202148243520
202042338126

Architects and agents, last 5 years

FirmApprovedDecided
JLS Design Services5760
Stacey Architects4243
Graham Moir Associates Ltd4044
Studio 63 Architecture Ltd3334
Davies Architectural Services3233
Gibson Architecture Limited2526
Cuppa Architects Ltd2121
AMZAK Architectural Design1617
Clifton Design (Bristol) Ltd1517
Cadplan Architecture1515

Neighbouring councils

CouncilApprovedRefusedHow often
Bath 7,324 837 about 1 in 10

Other projects in North Somerset