Annex approval rate in Greenwich

Greenwich approved 74.6% of annex applications, based on 71 decisions analysed.

Last updated: August 2026

74.6%

annex approval rate

Annex decisions

Approved

Refused

78.2%

Greenwich overall

Annex applications are refused more often than the Greenwich average (78.2%), suggesting the council scrutinises these projects more closely.

How annex compares in Greenwich

Annex (71 decided)

74.6%

Greenwich all applications (23,270 decided)

78.2%

Planning a annex in Greenwich?

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Other project types in Greenwich

Rear Extension (5,637 decided)

66.6%

Garage / Parking (2,916 decided)

77.4%

Dormer (2,845 decided)

67.9%

Loft Conversion (2,671 decided)

67.8%

Side Extension (2,066 decided)

59.8%

Change of Use (Residential) (1,588 decided)

70.7%

Basement (854 decided)

76.6%

Outbuilding (847 decided)

79.0%

Hip-to-Gable Conversion (838 decided)

70.5%

Wraparound Extension (688 decided)

57.8%

HMO (663 decided)

62.7%

Extension (General) (617 decided)

77.5%

Flat Conversion (570 decided)

78.1%

Conservatory (480 decided)

76.7%

New Build (434 decided)

85.5%

Front Extension (230 decided)

49.1%

← All Greenwich planning statistics

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