Annex approval rate in Chelmsford

Chelmsford approved 100.0% of annex applications, based on 11 decisions analysed.

Last updated: March 2026

100.0%

annex approval rate

Annex decisions

Approved

Refused

85.7%

Chelmsford overall

Annex applications are approved more often than the Chelmsford average (85.7%), suggesting the council is relatively receptive to these projects.

How annex compares in Chelmsford

Annex (11 decided)

100.0%

Chelmsford all applications (505 decided)

85.7%

100.0% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Less than one set of revised drawings.

86.4%

85.4%

83.5%

Dormer (37 decided)

89.2%

Outbuilding (37 decided)

89.2%

96.6%

69.2%

Conservatory (25 decided)

96.0%

87.0%

New Build (20 decided)

90.0%

94.7%